Superradiance lattice: Basic concept and applications from quantum metrology to topological insulators
Fri, 03/24/2017 - 13:20
in
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Title |
Superradiance lattice: Basic concept and applications from quantum metrology to topological insulators |
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Speaker |
Prof. Dawei Wang |
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Time |
14:00 p.m., 31st Mar, 2017 |
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Venue |
CT Chang Memorial Hall張昭鼎記念講堂 |
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Contact |
Dr. Ying-Cheng Chen(IAMS) |
Abstract:
Superradiance has grown into a major topic in quantum optics since Dicke’s seminal paper in 1954. Recently, timed Dicke states, the collective excitations of extended atomic ensembles by single photon absorption, have been found with interesting properties such as directional emissions and collective Lamb shifts. By combining single photon superradiance and electromagenetically induced transparency, we can use timed Dicke states to construct momentum-space tight-binding lattices, coined the superradiance lattices [1]. In this talk, I will introduce the basic concept of superradiance lattice and its applications in quantum metrology [2], optical diodes [3] and the simulation of the Haldane model [4, 5]. Superradiance lattices can be extended more than three dimensions and offer a tunable platform for simulating high dimensional topological physics.
[1] D.-W. Wang, R.-B. Liu, S.-Y. Zhu and M.O. Scully, PRL 114, 043602 (2015)
[2] D.-W. Wang and M. O. Scully, PRL 113, 083601 (2014)
[3] D.-W. Wang, H.-T. Zhou, M.-J. Guo, J.-X. Zhang, J. Evers and S.-Y. Zhu, PRL 110, 093901 (2013)
[4] D.-W. Wang, H. Cai, L. Yuan, S.-Y. Zhu and R.-B. Liu, Optica 2, 712 (2015)
[5] D.-W. Wang, H. Cai, R.-B. Liu and M. O. Scully, PRL 116, 220502 (2016)
