87 citations · 324 across the 34 of their papers we have counts for
35 papers
Entanglement entropy of ground states of the Landau Hamiltonian on the half-plane
Paul Pfeiffer, Wolfgang Spitzer
We study the entanglement entropy of ground states of a Hamiltonian defined on a domain with a boundary. Surprisingly, boundary conditions can change the spectrum and the nature of…
Existence and absence of Bose-Einstein condensation in the interacting random Kac-Luttinger model
C. Boccato, J. Kerner, M. Pechmann +1
In this paper, we study interacting bosons at zero temperature in a random and higher-dimensional continuum model introduced by Kac and Luttinger. For weak interactions we prove th…
Entanglement entropy in the ground state of non-interacting massless Dirac fermions in dimension one
Fabrizio Ferro, Paul Pfeiffer, Wolfgang Spitzer
We present a novel proof of a formula of Casini and Huerta for the entanglement entropy of the ground state of non-interacting massless Dirac fermions in dimension one localized to…
Logarithmically enhanced area-laws for fermions in vanishing magnetic fields in dimension two
Paul Pfeiffer, Wolfgang Spitzer
We consider fermionic ground states of the Landau Hamiltonian, , in a constant magnetic field of strength in at some fixed Fermi energy , described by…
Entanglement entropy of ground states of the three-dimensional ideal Fermi gas in a magnetic field
Paul Pfeiffer, Wolfgang Spitzer
We study the asymptotic growth of the entanglement entropy of ground states of non-interacting (spinless) fermions in subject to a non-zero, constant magnetic field p…
Rényi entropies of the free Fermi gas in multi-dimensional space at high temperature
Hajo Leschke, Alexander V. Sobolev, Wolfgang Spitzer
We study the local and (bipartite) entanglement Rényi entropies of the free Fermi gas in multi-dimensional Euclidean space in thermal equilibrium. We prove positivit…