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TZID:Europe/Paris
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BEGIN:VEVENT
UID:0-1006@lptms.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20250117T134500
DTEND;TZID=Europe/Paris:20250117T150000
DTSTAMP:20250106T082530Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/informal-quantum-
 seminar-lptms-chunxiao-liu-uc-berkeley/
SUMMARY:Informal quantum seminar LPTMS: Chunxiao Liu (UC Berkeley) - Salle 
 des séminaires du FAST et du LPTMS\, bâtiment Pascal n°530 - 17 Jan 25 
 13:45
DESCRIPTION:Characterizing 3D quantum paramagnets using Lieb-Schultz-Mattis
  constraints\n\nChunxiao Liu (UC Berkeley)\n&nbsp\;\nQuantum paramagnets r
 epresent intriguing quantum phases that evade ordering even at absolute ze
 ro temperature. While detecting their presence is relatively straightforwa
 rd\, unraveling their fundamental nature can be a challenging task. In thi
 s talk\, I will present our recent work [1] on Lieb-Schultz-Mattis (LSM) c
 onstraints which prohibit certain quantum paramagnets from being a “triv
 ial” one. I will highlight the topological response theory underlying th
 e LSM constraints that we developed\, containing information about symmetr
 y\, excitations\, and lattice defects\, applicable to all 3D quantum param
 agnets. I will illustrate the use of these results through two examples: (
 1) the prediction of a Dirac spin liquid in the triangular lattice compoun
 d NaYbO2\, and (2) the characterization of U(1) quantum spin liquids in a 
 pyrochlore S=1/2 antiferromagnet.
CATEGORIES:seminars
LOCATION:Salle des séminaires du FAST et du LPTMS\, bâtiment Pascal n°53
 0\, rue André Riviere\, Orsay\, 91405\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=rue André Riviere\, Orsay\
 , 91405\, France;X-APPLE-RADIUS=100;X-TITLE=Salle des séminaires du FAST 
 et du LPTMS\, bâtiment Pascal n°530:geo:0,0
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TZID:Europe/Paris
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DTSTART:20241027T020000
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