Towards low-dimensional Bose-Fermi mixtures on a microchip

Lead Research Organisation: University of Nottingham
Department Name: Sch of Physics & Astronomy

Abstract

Atoms at ultra-low temperatures form degenerate quantum states, depending on their spin either a Bose-Einstein-Condensate or a degenerate Fermi gas. Bose-Einstein-Condensation occurs when the wavelength of an individual atom becomes comparable to the distance between the atoms and the behaviour of the ensemble is therefore dictated by the wave. This is a premier example for the predictions of quantum mechanics.
As a form of an extreme many body system, degenerate quantum gases are fascinating on their own and provide insight into the fundamental building blocks of our world. Because we can control these systems comparatively easily they are also extremely useful to study and model other systems, which are less well controlled or more difficult to access. Examples are the still open problem of high-temperature superconductivity, the physics of neutron stars, analogue models for gravity or modelling of a black hole and Hawking radiation.
The notation of an analogue quantum simulator was formed by Richard Feynman, where he proposed that instead of trying to theoretically predict the behaviour of a complex system one could model model its behaviour with another quantum system. Such a simulator would exactly be implemented by a cold atoms mixture experiment.

We propose here to study mixtures of two ultracold species formed from bosonic (caesium, with integer spin) and fermionic (lithium, with half-integral spin) atoms. This will allow for the first time the study of one-dimensional fermionic atoms (similar to electrons in a solid) in a degenerate superfluid background (similar to the phonons in a crystal). We will implement these systems on a micro-chip, which provides a particularly stable and reliable environment for studying ultracold quantum gases.

For these and related experiments it will also be relevant to know the interactions between the two sorts of atoms, which we will map out over a large range of magnetic-fields. For atom-atom interactions a so-called Feshbach-resonance can exist, which enables tuning of the interaction strength from strongly attractive to non-interacting and to strongly repulsive, knowing the position and shape of this resonance is therefore of great importance.

Because one species can act as the background medium for the other, this system is also extremely well-suited to the investigation of transport and non-equilibrium physics in low-dimensions. The importance of understanding these phenomena has been highlighted in EPSRC's Physics Grand Challenges.

Planned Impact

Since the proposed project focuses on fundamental research, direct applications will emerge on a longer timescale (> 10 years).
The research carried out with this proposal will help to model and better understand condensed matter physics especially transport and conductivity in extremely thin wires or planes, which in the future could lead to applications such as the design of new and more efficient materials or the possibility of modelling traffic jams and classical 1D transport. Quantum physics in 2 dimensional planes might also help to shed light on the unsolved problem of high temperature superconductivity. A better understanding of these questions might lead to the development of tailored materials with reduced resistivity, which may have applications in nano-sized motors or sensors and generally increase our understanding towards reducing losses and energy consumption in transport mechanisms.
Additionally the proposed research scheme will shed light onto the interactions between cold quantum gases and surfaces. This information is of fundamental importance e.g. for the creation of a chip based quantum interface in the context of information storage, quantum communication and quantum computing.

Technical developments necessary for the setup of the experiment might have an impact on small and intermediate sized companies in related areas. For example we are currently developing the design for our glass cell in collaboration with Torr Scientific. Other examples of knowledge exchange between industry and experiment might include the construction of an optical transport scheme, the improvement of our homebuilt lasers, used feedback stabilisation and electronic controllers. While these technical projects have overall only small significance for the scientific community, they might have the potential to stimulate new developments for companies on the long run.
These links to companies are further enhanced through a European Initial Training Network (ITN) on 'Quantum Technologies and Applications' (QTea), which will start in October 2012 and acts as a platform between five academic and five industrial partners.

In this context, the exploration of new atom trapping technologies on micro-chips and the influence of decoherence mechanisms will also contribute towards the development of chip-based sensors such as rotation and gravity sensors or atomic clocks. With the view of these applications being commercialised in the intermediate future (10-20 years) this research potentially contributes to the economic growth of the UK.

The proposed research will change our understanding of nature and in this way will have impact on the UK society. In order to make our findings accessible to a wide audience, we will disseminate our results through the University's homepage, through press releases on our research highlights, through articles for the general public, through undergraduate and A-level student projects (Nuffield foundation), at the University's open days and through online outreach projects (www.sixtysymbols.com).

In summary this project will have impact on the wealth, the well-being and the security of the UK society by creating fundamental understanding which will lead to applications on a long-term scale, by direct applications which can influence the UK economy on a shorter time scale and by increasing the understanding and awareness of the public.

Publications

10 25 50

publication icon
Syafwan M (2016) Superfluid flow past an obstacle in annular Bose-Einstein condensates in Journal of Physics B: Atomic, Molecular and Optical Physics

publication icon
Richard Howl, R. H. (2017) Quantum Decoherence of Phonons in Bose-Einstein Condensates in www.arxiv.org

publication icon
Paris-Mandoki A (2014) Versatile cold atom source for multi-species experiments. in The Review of scientific instruments

publication icon
Nathan Cooper, N.C. (2019) Additively manufactured ultra-high vacuum chamber below 10-10 mbar in www.arxiv.org

publication icon
Howl R (2018) Quantum decoherence of phonons in Bose-Einstein condensates in Journal of Physics B: Atomic, Molecular and Optical Physics

publication icon
Howl R (2017) Gravity in the quantum lab in Advances in Physics: X

 
Description A lithium Bose-Einstein Condensate (at a temperature of ~100nK, close to absolute zero) was developed and characterised together with a cold cloud of cesium atoms. Methods for dual-species atomic sources as needed for the formation of the Bose-Einstein-Condensate where designed and built in the form of a dual-species oven and a dual-species Zeeman slower have been developed. Both sources have been analysed and characterised. Cooling methods for the cesium atoms (degenerate Raman sideband cooling) have been implemented and a new concept demonstrated. The insitu-distribution of the strongly interacting gas has been analysed and compared to different theoretical descriptions including an ideal gas, a semi-ideal approach and a the full solutions of the Hartree-Fock equations.
The project was also the basis for developing concepts of trapping Cs atoms in hole in a fibre mounted on a chip.
Exploitation Route The sources that have been developed will be used by other experimental groups that work on dual-species experiments. The papers that have been published will influence researchers in the field and in particular with the interpretation of strongly interacting quantum gases.
Sectors Aerospace, Defence and Marine,Chemicals,Education,Electronics,Pharmaceuticals and Medical Biotechnology

 
Description We are currently working on two applications which will lead to patent applications. These applications have led to patent applications and knowledge transfer.
First Year Of Impact 2018
Sector Digital/Communication/Information Technologies (including Software),Electronics,Manufacturing, including Industrial Biotechology
 
Description Bridging the gap: "Relativistic Quantum Thermometry with Bose Einstein Condensates"
Amount £24,000 (GBP)
Organisation University of Nottingham 
Sector Academic/University
Country United Kingdom
Start 06/2013 
End 03/2014
 
Description Demonstrating a novel high efficiency atom-photon interface for quantum memories, single photon sources and sensing applications
Amount £33,000 (GBP)
Organisation Birmingham-Nottingham Strategic Collaboration Fund 
Sector Academic/University
Country United Kingdom
Start 01/2017 
End 07/2017
 
Description ErBesta: Errorproof Bell-State Analyzer
Amount € 1,500,000 (EUR)
Funding ID 800942 
Organisation European Research Council (ERC) 
Sector Public
Country European Union (EU)
Start 06/2018 
End 06/2021
 
Description Inspire physical Sciences Award
Amount £10,000 (GBP)
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Academic/University
Country United Kingdom
Start 08/2014 
End 03/2016
 
Description OptaMOT: Optimised Designs for Additively Manufactured Magneto Optical Traps
Amount £450,000 (GBP)
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Academic/University
Country United Kingdom
Start 12/2017 
End 12/2018
 
Description Quantum Integrated Light and Matter Interface
Amount € 400,000 (EUR)
Funding ID 295293 
Organisation European Research Council (ERC) 
Sector Public
Country European Union (EU)
Start 10/2013 
End 04/2016
 
Description Quantum Technologies Sensor hub EP/M013294/1
Amount £100,000 (GBP)
Funding ID EP/M013294/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Academic/University
Country United Kingdom
Start 10/2015 
End 10/2020
 
Description Quantum Technologies in Space
Amount € 1,000,000 (EUR)
Organisation European Research Council (ERC) 
Sector Public
Country European Union (EU)
Start 10/2016 
End 10/2018
 
Description Roger Penrose Institute - Physics
Amount £250,000 (GBP)
Organisation Inquiring Systems Inc. 
Start 05/2017 
End 05/2018
 
Title 3D printed methods and lasers for Quantum Technologies 
Description 3D printed designs were used to develop extremely compact and stable arrangements of optics. The optimal arrangement (only achievable with 3D printing) leads to short pathways and very compact optical setups. This modular approach can be applied to any optical setup and lead to compact and stable solutions. 
Type Of Material Improvements to research infrastructure 
Year Produced 2018 
Provided To Others? No  
Impact Plug and play lasers and laser systems or optical systems. We have as an example demonstrated a laser frequency stabilisation based on Doppler-free spectroscopy. This is an important research tool used in many quantum tecnology applications. 
 
Description Birmingham-Nottingham Quantum Interface 
Organisation University of Birmingham
Country United Kingdom 
Sector Academic/University 
PI Contribution specialist on cold atoms and single photon detection, help with building of a single photon counter, exchange on ideas on an atom-photon interface, exchange with a theoretician
Collaborator Contribution specialist on cold atoms and single photon detection, help with building of a single photon counter, exchange on ideas on an atom-photon interface, exchange with a theoretician
Impact ongoing collaboration, not multi-disciplinary
Start Year 2016
 
Description ErBestA: Error-Proof Bell-State Analyser 
Organisation Max Planck Society
Department Max Planck Institute for the Physics of Complex Systems
Country Germany 
Sector Charity/Non Profit 
PI Contribution collaboration on FET-OPEN application
Collaborator Contribution collaboration on FET-OPEN application
Impact collaboration on FET-OPEN application, further discussions on theory and experimental applications, exchange of researchers
Start Year 2016
 
Description ErBestA: Error-Proof Bell-State Analyser 
Organisation University of Rostock
Department Institute for Physics
Country Germany 
Sector Academic/University 
PI Contribution collaboration on FET-OPEN application
Collaborator Contribution collaboration on FET-OPEN application
Impact collaboration on FET-OPEN application, further discussions on theory and experimental applications, exchange of researchers
Start Year 2016
 
Description ErBestA: Error-Proof Bell-State Analyser 
Organisation University of Southern Denmark
Country Denmark 
Sector Academic/University 
PI Contribution collaboration on FET-OPEN application
Collaborator Contribution collaboration on FET-OPEN application
Impact collaboration on FET-OPEN application, further discussions on theory and experimental applications, exchange of researchers
Start Year 2016
 
Description ErBestA: Error-Proof Bell-State Analyser 
Organisation University of Vienna
Department Faculty of Physics
Country Austria 
Sector Academic/University 
PI Contribution collaboration on FET-OPEN application
Collaborator Contribution collaboration on FET-OPEN application
Impact collaboration on FET-OPEN application, further discussions on theory and experimental applications, exchange of researchers
Start Year 2016
 
Description ErBestA: Error-Proof Bell-State Analyser 
Organisation Vienna University of Technology
Department Institute of Atomic and Subatomic Physics (Atominstitut)
Country Austria 
Sector Academic/University 
PI Contribution collaboration on FET-OPEN application
Collaborator Contribution collaboration on FET-OPEN application
Impact collaboration on FET-OPEN application, further discussions on theory and experimental applications, exchange of researchers
Start Year 2016
 
Description NewPara 
Organisation Institute of Optics
Country France 
Sector Learned Society 
PI Contribution Li2 in a double well
Collaborator Contribution Collaboration on exploiting non-classical states in BECs
Impact EU flagship grant application, EU Synergy ERC grant application, scientific discussions
Start Year 2018
 
Description NewPara 
Organisation Institute of Optics
Country France 
Sector Learned Society 
PI Contribution Li2 in a double well
Collaborator Contribution Collaboration on exploiting non-classical states in BECs
Impact EU flagship grant application, EU Synergy ERC grant application, scientific discussions
Start Year 2018
 
Description NewPara 
Organisation University of Lyon
Country France 
Sector Academic/University 
PI Contribution Li2 in a double well
Collaborator Contribution Collaboration on exploiting non-classical states in BECs
Impact EU flagship grant application, EU Synergy ERC grant application, scientific discussions
Start Year 2018
 
Description OptaMot 
Organisation Added Scientific Ltd
PI Contribution collaboration on developing 3D printed MOT ensembles, testing, development, etc.
Collaborator Contribution scientific discussions, 3D printing of chamber + design
Impact collaboration, knowledge transfer, publications (expected), patents (expected)
Start Year 2017
 
Description OptaMot 
Organisation University of Sussex
Country United Kingdom 
Sector Academic/University 
PI Contribution collaboration on developing 3D printed MOT ensembles, testing, development, etc.
Collaborator Contribution scientific discussions, 3D printing of chamber + design
Impact collaboration, knowledge transfer, publications (expected), patents (expected)
Start Year 2017
 
Description Optamot Collaboration 
Organisation Added Scientific Ltd
PI Contribution Collectively held IUK project. We developed 3D printed vacuum chambers and developed highly stable lasers and laser spectroscopy ensembles based on 3D printed frames. This project led to 2 publications and 2 patent applications. We are currently preparing a follow-on project for further applications and impact of the results found.
Collaborator Contribution ASL provided the 3D printing designs and know-how as well as regular meetings, connections to other collaboration partners.
Impact This project led to 2 publications and 2 patent applications. We are currently preparing a follow-on project for further applications and impact of the results found.
Start Year 2018
 
Description Quantum_Gravimeter 
Organisation University of Nottingham
Department School of Mathematics Nottingham
Country United Kingdom 
Sector Academic/University 
PI Contribution We are studying mechanismes for decoherence in order to design a new, highly sensitive interferometer for gravity measurements. The scheme will be probed in a Bose-Einstein condensate (my contribution), theoretically described by mathematics Nottingham and Chemistry, Southampton. The final sensor will apply a diamond vacancy, this will be done at the University of Warwick.
Collaborator Contribution We are studying mechanismes for decoherence in order to design a new, highly sensitive interferometer for gravity measurements. The scheme will be probed in a Bose-Einstein condensate (my contribution), theoretically described by mathematics Nottingham and Chemistry, Southampton. The final sensor will apply a diamond vacancy, this will be done at the University of Warwick.
Impact multi-disciplinary: - physics - mathematics - chemistry No direct outcomes yet, as the project has just started. Applications for further funding likely.
Start Year 2014
 
Description Quantum_Gravimeter 
Organisation University of Southampton
Department Chemistry
Country United Kingdom 
Sector Academic/University 
PI Contribution We are studying mechanismes for decoherence in order to design a new, highly sensitive interferometer for gravity measurements. The scheme will be probed in a Bose-Einstein condensate (my contribution), theoretically described by mathematics Nottingham and Chemistry, Southampton. The final sensor will apply a diamond vacancy, this will be done at the University of Warwick.
Collaborator Contribution We are studying mechanismes for decoherence in order to design a new, highly sensitive interferometer for gravity measurements. The scheme will be probed in a Bose-Einstein condensate (my contribution), theoretically described by mathematics Nottingham and Chemistry, Southampton. The final sensor will apply a diamond vacancy, this will be done at the University of Warwick.
Impact multi-disciplinary: - physics - mathematics - chemistry No direct outcomes yet, as the project has just started. Applications for further funding likely.
Start Year 2014
 
Description Quantum_Gravimeter 
Organisation University of Warwick
Department Department of Physics
Country United Kingdom 
Sector Academic/University 
PI Contribution We are studying mechanismes for decoherence in order to design a new, highly sensitive interferometer for gravity measurements. The scheme will be probed in a Bose-Einstein condensate (my contribution), theoretically described by mathematics Nottingham and Chemistry, Southampton. The final sensor will apply a diamond vacancy, this will be done at the University of Warwick.
Collaborator Contribution We are studying mechanismes for decoherence in order to design a new, highly sensitive interferometer for gravity measurements. The scheme will be probed in a Bose-Einstein condensate (my contribution), theoretically described by mathematics Nottingham and Chemistry, Southampton. The final sensor will apply a diamond vacancy, this will be done at the University of Warwick.
Impact multi-disciplinary: - physics - mathematics - chemistry No direct outcomes yet, as the project has just started. Applications for further funding likely.
Start Year 2014
 
Description Quantum_Integrated_Light_Matter_Interface 
Organisation Friedrich Schiller University Jena (FSU)
Department Institute of Applied Physics
Country Germany 
Sector Academic/University 
PI Contribution We are constructing an interface for quantum computing and sensing applications which links correlated photons and cold atoms. The project has in total 5 partners, two partners provide theory support (Uni Nottingham, theory and MPKS Dresden), one partner provides correlated photons in a chip-structure (Physics Department, University of Vienna), one partner provides the actual microprocessed chips (IAP, University of Jena) and the experimental node at the University of Nottingham (my contribution) provides the cold atoms.
Collaborator Contribution We are constructing an interface for quantum computing and sensing applications which links correlated photons and cold atoms. The project has in total 5 partners, two partners provide theory support (Uni Nottingham, theory and MPKS Dresden), one partner provides correlated photons in a chip-structure (Physics Department, University of Vienna), one partner provides the actual microprocessed chips (IAP, University of Jena) and the experimental node at the University of Nottingham (my contribution) provides the cold atoms.
Impact No outcomes yet, collaboration still ongoing.
Start Year 2013
 
Description Quantum_Integrated_Light_Matter_Interface 
Organisation Max Planck Society
Department Max Planck Institute for the Physics of Complex Systems
Country Germany 
Sector Charity/Non Profit 
PI Contribution We are constructing an interface for quantum computing and sensing applications which links correlated photons and cold atoms. The project has in total 5 partners, two partners provide theory support (Uni Nottingham, theory and MPKS Dresden), one partner provides correlated photons in a chip-structure (Physics Department, University of Vienna), one partner provides the actual microprocessed chips (IAP, University of Jena) and the experimental node at the University of Nottingham (my contribution) provides the cold atoms.
Collaborator Contribution We are constructing an interface for quantum computing and sensing applications which links correlated photons and cold atoms. The project has in total 5 partners, two partners provide theory support (Uni Nottingham, theory and MPKS Dresden), one partner provides correlated photons in a chip-structure (Physics Department, University of Vienna), one partner provides the actual microprocessed chips (IAP, University of Jena) and the experimental node at the University of Nottingham (my contribution) provides the cold atoms.
Impact No outcomes yet, collaboration still ongoing.
Start Year 2013
 
Description Quantum_Integrated_Light_Matter_Interface 
Organisation University of Vienna
Department Faculty of Physics
Country Austria 
Sector Academic/University 
PI Contribution We are constructing an interface for quantum computing and sensing applications which links correlated photons and cold atoms. The project has in total 5 partners, two partners provide theory support (Uni Nottingham, theory and MPKS Dresden), one partner provides correlated photons in a chip-structure (Physics Department, University of Vienna), one partner provides the actual microprocessed chips (IAP, University of Jena) and the experimental node at the University of Nottingham (my contribution) provides the cold atoms.
Collaborator Contribution We are constructing an interface for quantum computing and sensing applications which links correlated photons and cold atoms. The project has in total 5 partners, two partners provide theory support (Uni Nottingham, theory and MPKS Dresden), one partner provides correlated photons in a chip-structure (Physics Department, University of Vienna), one partner provides the actual microprocessed chips (IAP, University of Jena) and the experimental node at the University of Nottingham (my contribution) provides the cold atoms.
Impact No outcomes yet, collaboration still ongoing.
Start Year 2013
 
Description Roger Penrose Institute 
Organisation University of Nottingham
Department School of Mathematics Nottingham
Country United Kingdom 
Sector Academic/University 
PI Contribution Li2 BEC in a double well to study non-classical entangled states and gravitational collapse - experiment
Collaborator Contribution Li2 BEC in a double well to study non-classical entangled states and gravitational collapse - theory
Impact scientific discussions, publications (expected), further funding (expected), wider net of collaborations
Start Year 2017
 
Description Spacetime Quantum Probes 
Organisation Aalto University
Country Finland 
Sector Academic/University 
PI Contribution Consortium put together for the application of an FET-open project. Application ongoing. The consortium consists of theorists and experimentalists working with photons, microwave cavities and ultracold atoms. We are one of the utlracold atoms team with the aim to create a two-mode squeezed state for improved gravity measurements.
Collaborator Contribution Three partners are theoreticians with a background in curved space time (Ulm, CNR, Vienna). One experimental partner studies communications with photons over large distance (OEAW), one partner works with microwave cavities (Chalmers), Palaiseau works with ultracold helium, Nottingham with ultracold ceasium.
Impact Application for an EU Fet-open Project.
Start Year 2015
 
Description Spacetime Quantum Probes 
Organisation Austrian Academy of Sciences
Country Austria 
Sector Academic/University 
PI Contribution Consortium put together for the application of an FET-open project. Application ongoing. The consortium consists of theorists and experimentalists working with photons, microwave cavities and ultracold atoms. We are one of the utlracold atoms team with the aim to create a two-mode squeezed state for improved gravity measurements.
Collaborator Contribution Three partners are theoreticians with a background in curved space time (Ulm, CNR, Vienna). One experimental partner studies communications with photons over large distance (OEAW), one partner works with microwave cavities (Chalmers), Palaiseau works with ultracold helium, Nottingham with ultracold ceasium.
Impact Application for an EU Fet-open Project.
Start Year 2015
 
Description Spacetime Quantum Probes 
Organisation Chalmers University of Technology
Country Sweden 
Sector Academic/University 
PI Contribution Consortium put together for the application of an FET-open project. Application ongoing. The consortium consists of theorists and experimentalists working with photons, microwave cavities and ultracold atoms. We are one of the utlracold atoms team with the aim to create a two-mode squeezed state for improved gravity measurements.
Collaborator Contribution Three partners are theoreticians with a background in curved space time (Ulm, CNR, Vienna). One experimental partner studies communications with photons over large distance (OEAW), one partner works with microwave cavities (Chalmers), Palaiseau works with ultracold helium, Nottingham with ultracold ceasium.
Impact Application for an EU Fet-open Project.
Start Year 2015
 
Description Spacetime Quantum Probes 
Organisation Institute of Optics
Country France 
Sector Learned Society 
PI Contribution Consortium put together for the application of an FET-open project. Application ongoing. The consortium consists of theorists and experimentalists working with photons, microwave cavities and ultracold atoms. We are one of the utlracold atoms team with the aim to create a two-mode squeezed state for improved gravity measurements.
Collaborator Contribution Three partners are theoreticians with a background in curved space time (Ulm, CNR, Vienna). One experimental partner studies communications with photons over large distance (OEAW), one partner works with microwave cavities (Chalmers), Palaiseau works with ultracold helium, Nottingham with ultracold ceasium.
Impact Application for an EU Fet-open Project.
Start Year 2015
 
Description Spacetime Quantum Probes 
Organisation National Research Council
Country Italy 
Sector Public 
PI Contribution Consortium put together for the application of an FET-open project. Application ongoing. The consortium consists of theorists and experimentalists working with photons, microwave cavities and ultracold atoms. We are one of the utlracold atoms team with the aim to create a two-mode squeezed state for improved gravity measurements.
Collaborator Contribution Three partners are theoreticians with a background in curved space time (Ulm, CNR, Vienna). One experimental partner studies communications with photons over large distance (OEAW), one partner works with microwave cavities (Chalmers), Palaiseau works with ultracold helium, Nottingham with ultracold ceasium.
Impact Application for an EU Fet-open Project.
Start Year 2015
 
Description Spacetime Quantum Probes 
Organisation University of Ulm
Country Germany 
Sector Academic/University 
PI Contribution Consortium put together for the application of an FET-open project. Application ongoing. The consortium consists of theorists and experimentalists working with photons, microwave cavities and ultracold atoms. We are one of the utlracold atoms team with the aim to create a two-mode squeezed state for improved gravity measurements.
Collaborator Contribution Three partners are theoreticians with a background in curved space time (Ulm, CNR, Vienna). One experimental partner studies communications with photons over large distance (OEAW), one partner works with microwave cavities (Chalmers), Palaiseau works with ultracold helium, Nottingham with ultracold ceasium.
Impact Application for an EU Fet-open Project.
Start Year 2015
 
Description Spacetime Quantum Probes 
Organisation University of Vienna
Department Faculty of Physics
Country Austria 
Sector Academic/University 
PI Contribution Consortium put together for the application of an FET-open project. Application ongoing. The consortium consists of theorists and experimentalists working with photons, microwave cavities and ultracold atoms. We are one of the utlracold atoms team with the aim to create a two-mode squeezed state for improved gravity measurements.
Collaborator Contribution Three partners are theoreticians with a background in curved space time (Ulm, CNR, Vienna). One experimental partner studies communications with photons over large distance (OEAW), one partner works with microwave cavities (Chalmers), Palaiseau works with ultracold helium, Nottingham with ultracold ceasium.
Impact Application for an EU Fet-open Project.
Start Year 2015