visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2020-10-15 17:00 
일시 October 15, 5:00pm 
장소 https://bit.ly/3ndIiJn 
연사 Dr. Samuli Autti 
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 장소 제목
202 2012-04-02 16:00  E6, 1501  A new route to ferroelectricity in magnetic spinels: a case of Co2MnO4
201 2012-02-13 16:00  E6, 1501  Physics Colloquium : 2012 Spring
200 2011-09-03 16:00  E6, 1501  Physics Colloquium : 2011 Fall file
199 2011-05-16 16:00  E6, 1501  Photonics with surface plasmon polaritons
198 2010-02-14 16:00  E6, 1501  Physics Colloquium - 2011 Spring file
197 2010-09-06 16:00  E6, 1501  Physics Colloquium : 2010 Fall file
196 2010-02-08 16:00  E6, 1501  Physics Ciolloquium : 2010 Spring file
195 2009-10-21 16:00  E6, 1501  Interdimensional Universality of Dynamic Interfaces
194 2009-09-07 16:00  E6, 1501  Physics Colloquium : 2009 Fall file
193 2009-02-23 16:00  E6, 1501  Physics Colloquium : 2009 Spring file
192 2024-03-28 11:00  E6, #2501  Geometric characterization of thermoelectric performance of two-dimensional quadratic band-crossing semimetals
191 2022-03-28 16:00  E6, #1501  Ultimate-density atomic semiconductor via flat bands
190 2022-03-21 16:00  E6, #1501  Multi-wavelength Studies on Relativistic Jets from Gamma-ray Bright Active Galactic Nuclei
189 2022-04-25 16:00  E6, #1501  Ultrafast electron beam, a tool to explore the nanoscopic world of materials(우리말강의)
188 2022-03-07 16:00  E6, #1501  Climate Physics and Modelling(우리말강의)
187 2022-03-14 16:00  E6, #1501  Quantitative phase imaging and artificial intelligence: label-free 3D imaging, classification, and inference
186 2022-02-28 16:00  E6, #1501  Spin-based training of optical microscopes
185 2022-05-02 16:00  E6, #1501  What can we learn from the history of science and technology?(우리말강의)
184 2022-04-11 16:00  E6, #1501  Emergence of Statistical Mechanics in Quantum Systems
183 2022-05-23 16:00  E6, #1501  Novel electronic transport in topological van der Waals magnets