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UID:DSC-9821
DTSTART;TZID=Europe/Berlin:20150827T140000
SEQUENCE:1440661072
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20150827T150000
URL:https://www.dresden-science-calendar.de/calendar/en/detail/9821
LOCATION:MPI-PKS\, Nöthnitzer Straße 3801187 Dresden
SUMMARY:Shannon: Electromagnetism on ice : from quantum spin ice to protons
  in water ice
CLASS:PUBLIC
DESCRIPTION:Speaker: Nic Shannon\nInstitute of Speaker: OIST\nTopics:\nPhys
 ik\n Location:\n  Name: MPI-PKS (Seminarroom 4)\n  Street: Nöthnitzer Str
 aße 38\n  City: 01187 Dresden\n  Phone: + 49 (0)351 871 0\n  Fax: \nDescr
 iption: It has been known since the pioneering work of Bernal\, Fowler and
  Pauling that hexagonal water ice is the architype of a frustrated materia
 l : a proton-bonded network in which protons satisfy strong local constrai
 nts - the \"ice rules\" - but do not order. Frustration of this type has b
 een rediscovered many times since\, in the context of charge order on pyro
 chlore lattice\, proton-bonded ferroelectrics\, models of polymer melts an
 d\, most famously\, the family rare earth pyrochlore oxides known as \"spi
 n ice\". Recently \"quantum spin-ice\" materials have attracted considerab
 le attention as potential hosts for a quantum spin-liquid\, in which the c
 ollective excitations of spins are described by a U(1) lattice gauge theor
 y\, and have the character of photons. In this talk we review some of the 
 theoretical progress in understanding quantum spin ice\, with emphasis on 
 numerical results\, and pose the question : should we be looking for a sim
 ilar quantum liquid in the protons of water ice ? [1] O. Benton\, O. Sikor
 a and N. Shannon\, arXiv:1504.04158
DTSTAMP:20260928T200047Z
CREATED:20150827T073752Z
LAST-MODIFIED:20150827T073752Z
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