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cond-mat.stat-mech2023★ 1 cited
Entanglement entropy of two disjoint intervals and spin structures in interacting chains in and out of equilibrium
Vanja Marić, Saverio Bocini, Maurizio Fagotti
We take the paradigm of interacting spin chains, the Heisenberg spin- XXZ model, as a reference system and consider interacting models that are related to it by Jordan…
cond-mat.stat-mech2023★ 1 cited
No eigenstate of the critical transverse-field Ising chain satisfies the area law
Saverio Bocini, Maurizio Fagotti
We argue that, in a basis common to all one-site shift invariant conserved charges, there is no eigenstate of a noninteracting local spin-1/2 chain Hamiltonian that satisfies the a…