visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2018-04-13 10:00 
연사  
장소 #1323 (E6-2, 1st fl.) 

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 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
525 2022-11-17 16:00    (광학분야 세미나) Ultrastructural and Spectroscopic Studies by Super-Resolution Fluorescence Microscopy
524 2022-09-22 16:00    (광학분야 세미나) Quasi-particle-like optical vortices in magnetic materials
523 2022-02-28 16:00    Spin-based training of optical microscopes
522 2022-12-09 11:00    [Update 세미나영상](응집물리 세미나) Single-shot measurements of strongly-correlated artificial molecular levels in semiconductor quantum dots file
521 2025-02-27 16:00  김도헌 교수(서울대)  Toward reliably coherent spin qubits in silicon file
520 2025-03-27 16:00  김건우 교수 (중앙대)  Quantum dynamics in synthetic spaces file
519 2023-03-24 11:00    (응집물리 세미나)Floquet simulators of topological surface states in isolation
518 2023-05-18 16:00    (광학분야 세미나)Dielectric metasurfaces for optimized optical system and spatial light modulators
517 2022-05-10 16:00    (광학분야 특별세미나)Testing quantum thermodynamics using quantum optics
516 2022-05-30 16:00    Light manipulation using 2D layered semiconductors
515 2025-03-13 16:00  고희동 교수(서울대)  분산관계 기반 파동 제어 구조물 설계 file
514 2022-09-29 16:00    (광학분야 세미나) Ultrafast THz Field-Induced Nonlinear Optics
513 2013-03-11 16:00    Physics Colloquium : 2013 Spring
512 2025-03-17 16:00  강동민 교수 (서울대)  String Theory, Quantum Field Theory and Physical Mathematics file
511 2023-05-31 16:00    [High-Energy Theory Seminar] Resurgence and complex Chern-Simons theory
510 2022-01-18 14:00    Data-driven interrogation of biological dynamics: from subcellular interactions to neuronal networks in vivo file
509 2024-10-02 12:00    Data-driven discovery of neural computations through brain-wide and cell-type-specific dynamical systems file
508 2016-06-14 16:00    Photonic quantum network based on multimode squeezed vacuums and single-photon subtraction
507 2023-05-17 14:00    Optical Response in the multilayer thin films
506 2021-02-15 17:00    Magnetic Cluster Octupole Domain evolutation in chiral antiferromagnets file