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Symmetry-protected collisions between strongly interacting photons

Author

Listed:
  • Jeff D. Thompson

    (Harvard University
    Princeton University)

  • Travis L. Nicholson

    (Massachusetts Institute of Technology)

  • Qi-Yu Liang

    (Massachusetts Institute of Technology)

  • Sergio H. Cantu

    (Massachusetts Institute of Technology)

  • Aditya V. Venkatramani

    (Harvard University)

  • Soonwon Choi

    (Harvard University)

  • Ilya A. Fedorov

    (Russian Quantum Center)

  • Daniel Viscor

    (Max Planck Institute for the Physics of Complex Systems)

  • Thomas Pohl

    (Max Planck Institute for the Physics of Complex Systems)

  • Mikhail D. Lukin

    (Harvard University)

  • Vladan Vuletić

    (Massachusetts Institute of Technology)

Abstract

Excitations to Rydberg states in a gas of ultracold atoms are used to produce a robust, nonlinear phase shift of exactly π/2 between two photons, which is protected against variations in experimental parameters by a symmetry of the system.

Suggested Citation

  • Jeff D. Thompson & Travis L. Nicholson & Qi-Yu Liang & Sergio H. Cantu & Aditya V. Venkatramani & Soonwon Choi & Ilya A. Fedorov & Daniel Viscor & Thomas Pohl & Mikhail D. Lukin & Vladan Vuletić, 2017. "Symmetry-protected collisions between strongly interacting photons," Nature, Nature, vol. 542(7640), pages 206-209, February.
    • Handle: RePEc:nat:nature:v:542:y:2017:i:7640:d:10.1038_nature20823
    DOI: 10.1038/nature20823
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