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SUMMARY:Entanglement Hamiltonians in the presence of a boundary - Erik Ton
 ni (SISSA)
DTSTART:20251212T090000Z
DTEND:20251212T100000Z
UID:TALK239329@talks.cam.ac.uk
DESCRIPTION:The reduced density matrix of a spatial subsystem can be writt
 en as the exponential of the entanglement (modular) Hamiltonian\, hence th
 is operator contains a lot of information about the entanglement of the co
 rresponding spatial bipartition. For some particular models\, states and b
 ipartitions\, this operator is local\, but in general it is expected to be
  non-local. We discuss the entanglement Hamiltonians of an interval for th
 ree &nbsp\;different free quantum field theories in one spatial dimension\
 , in their ground state: the massless Dirac field either on the half line 
 or on the strip with an inhomogeneous background (the rainbow model)\, &nb
 sp\;and the massive scalar field on the half line with Robin boundary cond
 itions.&nbsp\;
LOCATION:Seminar Room 1\, Newton Institute
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