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Collective atomic motion and spin in a driven optical cavity

Event Details

Event Dates: 

Friday, July 24, 2015 - 12:30pm

Seminar Location: 

  • JILA X317

Speaker Name(s): 

Dan Stamper-Kurn

Speaker Affiliation(s): 

Univ. of California, Berkeley
Seminar Type/Subject

Scientific Seminar Type: 

  • JILA Public Seminar

Event Details & Abstract: 

Cavity quantum electrodynamics generally lets one direct the interactions between polarizable objects and light, increasing the relevance of a single optical mode. As such, optical cavities improve our ability to extract information about a quantum object through its interaction with light, and also our ability to cause quantum objects to interact with one another remotely by exchanging photons. I will discuss studies of cavity optomechanics using gases of ultracold atoms trapped within a high finesse Fabry-Perot resonator. Cavity-based measurement allows us to detect forces at the standard quantum limit, a long-time goal for optomechanical systems. We also demonstrate coherent coupling between distinct mechanical objects, mediated by cavity photons, and also characterize the simultaneous influence of measurement on this interaction.  Finally, I will discuss analogues between cavity optomechancs and the dynamics of spins trapped within a driven optical cavity.