Quantum Control of Neutral Atoms and Single Photons

Lead Research Organisation: University of Oxford
Department Name: Oxford Physics

Abstract

Coupling and coherent control of single photons and atoms are the key to quantum information physics, with atoms and photons acting as information carriers in scalable quantum networks. To reach this degree of control, we follow several routes. We will manipulate individual atoms in free space using an array of optical tweezers, and couple these atoms to nano-structured cavities, like photonic crystals. Furthermore, we will explore single-photon quantum memories, using either electromagnetically induced transparency to store a photon in an atomic ensemble, or a single atom coupled to an optical cavity to realise an atom-photon quantum interface.

Publications

10 25 50
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Bergmann K (2019) Roadmap on STIRAP applications in Journal of Physics B: Atomic, Molecular and Optical Physics

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Brainis E (2009) Coherent imaging of extended objects in Optics Communications

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Dilley J (2012) Single-photon absorption in coupled atom-cavity systems in Physical Review A

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Himsworth M (2011) EIT-based quantum memory for single photons from cavity-QED in Applied Physics B

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Kuhn A (2010) Cavity-based single-photon sources in Contemporary Physics

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Muldoon C (2012) Control and manipulation of cold atoms in optical tweezers in New Journal of Physics

 
Title teleportation, transformation and railways 
Description This project, based at Carol Sorhaindo Arts Studio in Chapeltown, Leeds, draws together key historical moments in the construction and culture of Leeds Central Railway Station, narratives from the African Caribbean community in nearby Chapeltown, and the experience of physicists researching quantum teleportation at Oxford University. Under the mentorship of quantum physicist Dr Axel Kuhn and heritage historian and theatre professional Joe Williams, along with the contribution of movement aesthetic specialist David Hamilton, researcher/artist Dr Carol Marie Webster uses dance, theatre, and visual arts to construct performances and facilitate public dialogue around the complexities of human migration and quantum teleportation. The project has its own website at http://transportation-transformation.co.uk/. 
Type Of Art Performance (Music, Dance, Drama, etc) 
Year Produced 2013 
Impact The two live performances/public engagements allowed for artists, scientist, audience and community member to actively participate in the construction of a temporary community with shared experiences from varying perspective and to dialogue with and among the other across borders (imagined or otherwise). In addition, there were three smaller engagement between and researchers (scientists and artists) and small groups of community members (Chapeltown, Leeds, University of Oxford, and University of Leeds) in which knowledge sharing was explicit and conscious and levels of discomfort and courage were also more explicitly apparent. 
URL http://www.torch.ox.ac.uk/transportationtransformation
 
Description Single photons for quantum communication protocols produced on demand from strongly coupled atom-cavity systems, of arbitrary patio-temporal mode profile for the encoding of photonic qubits, qutrits and ququads. Development and implementation of bi-directional atom-photon interfacing schemes and of optical tweezers for single atoms.
Exploitation Route Implementation of deterministic atom-photon coupling in a large number of Quantum Technology applications.
Sectors Digital/Communication/Information Technologies (including Software),Education,Other

URL http://www2.physics.ox.ac.uk/research/the-atom-photon-connection/highlights
 
Description Engineering and Manipulation of Quantum States of Matter and Light
Amount € 500,000 (EUR)
Funding ID EMALI (MRTN-CT-2006-035369 
Organisation European Commission 
Department EC FP6 Collaborative Projects
Sector Academic/University
Country European Union (EU)
Start 04/2006 
End 11/2010
 
Description Quantum Control and Simulation with Distributed Neutral Atom Systems
Amount € 205,000 (EUR)
Funding ID Research Unit 635 
Organisation German Research Foundation 
Sector Charity/Non Profit
Country Germany
Start 04/2006 
End 04/2011
 
Description Scalable Quantum Computing with Light and Atoms
Amount € 170,000 (EUR)
Funding ID SCALA (contract 015714) 
Organisation European Commission 
Department EC FP6 Collaborative Projects
Sector Academic/University
Country European Union (EU)
Start 03/2007 
End 03/2010