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DTSTART:20190627T140000
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URL:https://murmitoyen.com/events/vanille/udem/detail/877770-deconfined-qua
 ntum-criticality-emergent-symmetry-and-qed3-gross-neveu-transitions-zi-yan
 g-meng-institute-of-physics-china
LOCATION:Université de Montréal - Pavillon Roger-Gaudry\, 2900\, chemin d
 e la Tour\, Montréal\, QC\, Canada\, H3T 1J6
SUMMARY:Deconfined quantum Criticality\, emergent symmetry and QED3-Gross-N
 eveu transitions - Zi Yang Meng (Institute of Physics\, China)
DESCRIPTION:ATTENTION: Usual local: Pavillon roger-Gaudry\, local P-312
Dec
 onfined quantum Criticality\, emergent symmetry and QED3-Gross-Neveu trans
 itionsZi Yang MengInstitute of Physics\, Chinese Academy of Science
Abstra
 ct: In this talk\, I will discuss the detection of fractionalization and e
 mergent gauge field at the deconfined quantum critical point. The spin spe
 ctra with gapless modes and continua and the associated conserved currents
  will serve as the distinctive signature of the emergent O(4) symmetry at 
 the deconfined quantum criticality. The connection of the such quantum cri
 tical point with that of matter fields coupled with gauge field at the QED
 3 setting will be revealed\, and the discovery of deconfined phase of matt
 er -- the algebraic spin liquid and its transition towards various confine
 d phases in the form of QED3-Gross-Neveu universality will be addressed as
  well.
References: PRB 98\, 174421 (2018)\, PRL 122\, 175701 (2019)\, PRX 
 9\, 021022 (2019).
For more information about Prof. Meng research\, you ca
 n consult his research web page.
Cette conférence est présentée par le
  RQMP Versant Nord du Département de physique de l'Université de Mon
 tréal et de Génie physique de la Polytechnique.
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