visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2020-10-15 17:00 
연사  
장소 https://bit.ly/3ndIiJn 
제목 : Time crystals, quasicrystals, and time crystal dynamics in the superfluid universe
 
연사 : Dr. Samuli Autti
일시 : 5:00pm, October 15, 2020
 
초록 : Time crystals are a novel phase of condensed matter, characterised by continuous, repeating motion in their quantum ground state. In our experiments, we explore this new phase using magnetic quasiparticles in the superfluid universe of 3He: We observe the formation of a quantum time quasicrystal and its transformation to a superfluid time crystal – a time supersolid [1]. We then bring two superfluid time crystals to touch each other, and observe oscillating particle exchange between the time crystals – the AC Josephson effect [2]. These ground-breaking experiments substantiate the theoretical excursion started by F. Wilczek, and provide novel, magnetic building block for quantum devices and quantum information processing – potentially even at room temperature [3].
 
[1] S. Autti et al, PRL 120 (2018)
[2] S. Autti et al, Nature Materials (2020), https://doi.org/10.1038/s41563-020-0780-y 
[3] Kreil, A. J. E. et al. arXiv:1911.07802 (2019)
 
고맙습니다.
 
최형순 드림

 

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)
305 2022-01-12 11:00    Spectroscopic study of trapped ions towards probing dark matter and new physics file
304 2019-09-10 15:00    (2+1) D Duality Web from 3D Euclidean Lattice file
303 2022-01-25 15:00    Emulating twisted double bilayer graphene with a multiorbital optical lattice file
302 2019-07-21 12:00    Challenges and Opportunities in Theoretical Particle Physics 2019 file
301 2024-03-13 16:00    [High-Energy Theory Seminar] The Schwarzschild Black Hole from Perturbation Theory to all Orders
300 2019-08-06 16:00    Visualization of in-plane piezoresponse vector fields file
299 2012-02-13 16:00    Physics Colloquium : 2012 Spring
298 2016-06-01 16:00    Laboratory experiments relevant to mesospheric clouds, Saturn’s rings & astrophysical jets
297 2023-03-22 16:00    (High Energy Theory Seminar) Boltzmann or Bogoliubov? A Case of Gravitational Particle Production
296 2019-07-03 15:00    Many-body quantum electrodynamis (QED) with atoms and photons: A new platform for quantum optics" file
295 2023-01-12 14:40    JILA 1D Wannier-Stark optical lattice clock file
294 2018-07-26 14:00    Inflation in String Theory and Backreaction file
293 2018-07-26 14:00    Inflation in String Theory and Backreaction file
292 2023-08-29 16:00    [High Energy Theory Seminar] Towards string loop corrections in Calabi-Yau orientifold compactifications.
291 2024-10-30 14:30    [Seminar Invitation] Mario Cuoco (CNR-SPIN, c/o University of Salerno, Fisciano, Italy) / 2024.10.30. 14:30 / E6-2, #3441
290 2020-08-17 20:00    Using magnetic tunnel junctions to compute like the brain file
289 2020-08-25 20:00    KAIST Global Forum for Spin and Beyond (Second Forum) file
288 2025-03-10 16:00  Marko Rancic (University of Luxembourg)  Quantum computing for physics and optimization problems file
287 2024-07-10 16:00    [High Energy Theory Seminar] The Weak Gravity Conjecture in Perturbative String Theory
286 2023-06-14 16:00    [High-Energy Theory Seminar]Vertex algebras and extended operators in 4d N=2 SCFTs