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Quantum nonlinear optics with Rydberg polaritons

Event Details

Event Dates: 

Monday, August 26, 2013 - 3:00pm

Seminar Location: 

  • JILA X317

Speaker Name(s): 

Dr. Ofer Firstenberg

Speaker Affiliation(s): 

Center for Ultracold Atoms, Cambridge
Seminar Type/Subject

Scientific Seminar Type: 

  • JILA Public Seminar

Event Details & Abstract: 

Realizing and engineering optical non-linearity at the level of single photons is a goal of scientific and technological significance. We obtain strong interaction between propagating photons by coherently coupling them to Rydberg atoms in a cold gas. While slowly traversing the medium, the "Rydberg polaritons” interact via the Van-der-Waals force, owing to their large electric dipole-moment. We are able to vary the dynamics of the two-photon wavefunction from dispersive (Schrodinger-like) to dissipative (diffusion-like) and observe strong bunching, anti-bunching, and a conditional phase-shifts of 1 radian for two individual photons reference:  http://www.nature.com/nature/journal/v488/n7409/full/nature11361.html#af...