Interfacing Spins with Photons for Quantum Simulation and Quantum Control

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• Prof. Monika Schleier-Smith, Stanford University
• Thursday 06 September 2018, 15:30-16:30
• Ryle Seminar Room (930) .

If you have a question about this talk, please contact Kayleigh Dunn.

Coupling many atoms to a single mode of light provides an efficient means of spreading quantum information across an extended many-body system. I will report on experiments in which we harness photons in an optical cavity to mediate “flip-flop” interactions among distant spins in a millimeter-long cloud of atoms. We characterize the spin-exchange interactions via quench dynamics and imaging of the local magnetization, demonstrating optical control of the interactions’ strength and sign. Furthermore, we observe signatures of correlated pair creation in Zeeman states of a spin-1 system, a light-mediated analog of collisional spin mixing in Bose-Einstein condensates. In contrast to direct collisional interactions, non-local photon-mediated interactions offer unprecedented opportunities for engineering the spatial structure of spin-spin couplings and correlations. I will describe prospects for tailoring the interactions to enable new directions in quantum simulation and to generate new resources for quantum-enhanced sensing.

This talk is part of the AMOP list series.

This talk is included in these lists:

• AMOP list
• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• Centre for Health Leadership and Enterprise
• Featured lists
• ME Seminar
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• Ryle Seminar Room (930)
• School of Physical Sciences
• Thin Film Magnetic Talks

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