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cond-mat.stat-mech2026
Measurement-induced entanglement Hamiltonian
Viktor Eisler, Erik Tonni
We study the entanglement Hamiltonian of an infinite hopping chain in its ground state, after partial projective measurements in the occupation basis. For a segment separated by tw…
cond-mat.stat-mech2026
A contour for the entanglement negativity of bosonic Gaussian states
Gioele Zambotti, Erik Tonni
We construct a contour function for the logarithmic negativity and the logarithm of the moments of the partial transpose of the reduced density matrix for multimode bosonic Gaussia…
cond-mat.stat-mech2025
Entanglement Hamiltonian of two disjoint blocks in the harmonic chain
Francesco Gentile, Andrei Rotaru, Erik Tonni
We study the entanglement Hamiltonian of two disjoint blocks in the harmonic chain on the line and in its ground state. In the regime of large mass, the non vanishing terms are onl…