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날짜 2018-04-13 10:00 
일시 April 13 (Fri.), 10am 
장소 #1323 (E6-2, 1st fl.) 
연사 Dr. Sungkun Hong 

Physics Seminar

 

Quantum meets Mechanics: from Quantum Information to Fundamental Research

 

Dr. Sungkun Hong

Vienna Center for Quantum Science and Technology, University of Vienna

 

April 13 (Fri.), 10am

#1323 (E6-2, 1st fl.)

 

 

Abstract:

Studying quantum aspects of macroscopic moving bodies is a new emerging field in quantum physics. The main experimental approach is cavity optomechanics, where photons in the cavity are used to measure and manipulate motional states of mechanical oscillators. Cavity optomechanics, together with advancements in microfabrication of mechanical devices, has allowed us to observe and control mechanical resonators at the quantum level. This opens new exciting possibilities for quantum information science and for studying quantum physics in hitherto untested macroscopic scales.

In this talk, I will describe two different quantum optomechanics experiments that I have been doing in Vienna. First, I will present our progress in utilizing on-chip optomechanical devices as a new resource for quantum information. Using micro-fabricated silicon structures, we demonstrated the generation of quantum-correlated photon-phonon pairs, the generation and retrieval of single phonons, and the remote entanglement between two mechanical modes, paving the way for telecom-compatible optical quantum networks. Future directions of the work will also be discussed. Next, I will introduce a novel, hybrid optomechanical system consisting of optically levitated nanoparticles and micro-fabricated photonic crystal cavity. The system combines ultra-high mechanical quality of the levitated nanoparticle and strong optical transduction from the optical cavity. It thus will allow for quantum coherent experiments on particle’s motions even at room temperature. I will discuss the current status of the experiment as well as future plans of the work, particularly the matter-wave interferometry in an unexplored mass regime.

 

Contact: Yongseop Kang, Administration Team (T.2599)

 

Department of Physics

번호 날짜 장소 제목
531 2009-02-23 16:00  E6, 1501  Physics Colloquium : 2009 Spring file
530 2009-09-07 16:00  E6, 1501  Physics Colloquium : 2009 Fall file
529 2009-10-21 16:00  E6, 1501  Interdimensional Universality of Dynamic Interfaces
528 2010-02-08 16:00  E6, 1501  Physics Ciolloquium : 2010 Spring file
527 2010-02-14 16:00  E6, 1501  Physics Colloquium - 2011 Spring file
526 2010-09-06 16:00  E6, 1501  Physics Colloquium : 2010 Fall file
525 2011-05-16 16:00  E6, 1501  Photonics with surface plasmon polaritons
524 2011-09-03 16:00  E6, 1501  Physics Colloquium : 2011 Fall file
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521 2013-03-11 16:00  E6, 1501  Physics Colloquium : 2013 Spring
520 2013-09-09 16:00  E6, 1501  Physics Colloquium : 2013 Fall
519 2014-03-10 16:00  E6, 1501  Physics Colloquium : 2014 Spring file
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515 2015-03-09 16:00  E6, 1501  Physics Colloquium : 2015 Spring file
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