TY - JOUR
T1 - Triviality of entanglement entropy in the Galilean vacuum
AU - Hason, Itamar
N1 - Publisher Copyright:
© 2018 The Author
PY - 2018/5/10
Y1 - 2018/5/10
N2 - We study the entanglement entropy of the vacuum in non-relativistic local theories with Galilean or Schrödinger symmetry. We clear some confusion in the literature on the free Schrödinger case. We find that with only positive U(1) charge particles (states) and a unique zero U(1) charge state (the vacuum) the entanglement entropy must vanish in that state.
AB - We study the entanglement entropy of the vacuum in non-relativistic local theories with Galilean or Schrödinger symmetry. We clear some confusion in the literature on the free Schrödinger case. We find that with only positive U(1) charge particles (states) and a unique zero U(1) charge state (the vacuum) the entanglement entropy must vanish in that state.
UR - http://www.scopus.com/inward/record.url?scp=85042938108&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2018.02.064
DO - 10.1016/j.physletb.2018.02.064
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AN - SCOPUS:85042938108
VL - 780
SP - 149
EP - 151
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
ER -