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
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
523 2012-02-13 16:00  E6, 1501  Physics Colloquium : 2012 Spring
522 2012-04-02 16:00  E6, 1501  A new route to ferroelectricity in magnetic spinels: a case of Co2MnO4
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
518 2014-05-28 17:00  KI Building, Matrix Hall  부품소재산업이 미래다
517 2014-12-22 14:00  E6, Rm1319  Dynamics of molecular motors: Power stroke vs Brownian ratchet file
516 2015-03-04 12:00  1323호, E6-2  Bioimaging and Biosensing Using Near-Infrared Fluorescence file
515 2015-03-09 16:00  E6, 1501  Physics Colloquium : 2015 Spring file
514 2015-03-13 14:00  Connect Room, KI Bldg.  The 15th Innovative Workshop on Soft/Bio Materials file
513 2015-06-03 12:00  Room 101, E11  The First Wednesday Multidisciplinary Forum file
512 2015-07-15 14:00  E6-2,1323  Electronic and optical properties of titanate-based oxide superlattices