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  Application of quantum images to optical microscopy and quantum information science


   School of Physics and Astronomy

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Dr V Boyer  Applications accepted all year round  Competition Funded PhD Project (Students Worldwide)

About the Project

The Cold Atom Group of the University of Birmingham is seeking a PhD candidate for a project in Quantum Optics.

Recent advances in quantum Optics have allowed the generation of nonclassical quantum states of light such as highly spatially entangled beams [1]. These light fields, dubbed "quantum images", have subtle quantum correlations that depends on the position in their transverse profile. Another crucial property is that they are resonant with an atomic transition, with a spectrum compatible with strong interaction with atoms. We recently used this feature to build a quantum buffer for quantum images, that is to say an atomic device that can be used to slow the propagation of light without removing its quantum properties like the entanglement [2].

The quantum optics team at Birmingham, a pioneer of the generation of quantum images aims at harnessing the spatial properties of non-classical light for application in quantum technologies. Highlights will include demonstrating the enhancement of imaging super-resolution beyond the standard quantum limit, the production of states of light useful for quantum information processing, and the storage of quantum information in cold atom-based quantum memories.

The project benefits from the exceptional environment of the Midlands Ultracold Atom Research Centre, which regroups 6 experimental teams at the Universities of Birmingham and Nottingham, and targets cutting-edge interdisciplinary research at the rapidly evolving interface between cold atom, condensed matter, and optical physics.

http://mpa.ac.uk/muarc/research/quantumoptics.html

Funding Notes

This PhD will be funded by the UK Research Council. International students can apply to our Elite Fellowship scheme.

References

[1] "Entangled images from four-wave mixing",
Vincent Boyer, Alberto M. Marino, Raphael C. Pooser and Paul D. Lett,
Science 321, 544 (2008).

[2] "Tunable delay of Einstein-Podolsky-Rosen entanglement",
Alberto M. Marino, Raphael C. Pooser, Vincent Boyer and Paul D. Lett,
Nature 457, 859 (2009).

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Project supervisors

Career overview

Dr Vincent Boyer is an Associate Professor and Head of the Cold Atom group at the University of Birmingham''s School of Physics and Astronomy. He obtained a PhD in Quantum Physics from the University of Paris 6 in 2000, following an MSc in Physics from the same institution. Dr Boyer''s research encompasses ultracold atoms, quantum optics, and fundamental physics, focusing on enhancing imaging techniques using quantum-squeezed light, developing super-resolved microscopy methods below the diffraction limit, and employing quantum-enhanced interferometry for dark matter detection. Dr Boyer has held several notable positions, including guest researcher at the National Institute of Standards and Technology (NIST) in Gaithersburg, USA, where he worked on quantum optics with atomic vapours and quantum images from 2005 to 2009. He was also a Marie Curie fellow at the University of Oxford from 2002 to 2005, where he researched Bose-Einstein condensation and dynamic optical potentials. Earlier in his career, he served as a guest researcher at NIST from 2000 to 2002, focusing on subrecoil laser cooling for the space clock programme. His teaching responsibilities include courses in Year 3 Photonics Laboratory, Year 3 Atomic Physics, Year 2 Statistical Physics and Entropy, Year 4 Project supervision, and Postgraduate Optics Lab. Dr Boyer''s main research interests lie at the intersection of quantum optics and cold atom physics, where he conducts experiments that merge the quantum properties of light with the precise control of cold atoms.


Research interests

Dr Vincent Boyer''s research spans ultracold atoms, quantum optics, and fundamental physics. He focuses on improving imaging using quantum-squeezed light, developing novel techniques for super-resolved microscopy below the diffraction limit, and detecting dark matter using quantum-enhanced interferometry. His main interests lie at the intersection of quantum optics and cold atom physics, where he conducts experiments that combine the quantum nature of light with the precise control of cold atoms. He investigates the generation of nonclassical states of light, known as ''quantum images,'' which exhibit subtle quantum correlations and can be used for imaging transparent objects, accurate beam positioning, or quantum cryptography. Additionally, he explores the creation of atomic quantum memories for quantum information processing systems, aiming to transfer quantum information between light and atoms effectively.

View Dr. Vincent Boyer's profile