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Quantum coherences from thermal noise

Date: Friday, June 23, 2017 11:00 - 13:00
Speaker: Timur Tscherbul (University of Nevada Reno)
Location: Seminar room Big Ground floor / Office Bldg West (I21.EG.101)
Series: Physical Sciences Seminar
Host: Mikhail Lemeshko
Lab building west seminar room

Abstract:

I will present exact solutions of the quantum optical (Bloch-Redfield) master equations for a three-level quantum V-system weakly coupled to a thermal environment. It will be shown that quantum coherences can spontaneously arise and evolve in such systems, with very long coherence times possible under certain conditions. A few experimental realizations of the noise-induced coherences in atomic systems will be discussed, along with implications for quantum device engineering and photosynthetic energy transfer in light-harvesting dimers.

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