Finite temperature negativity Hamiltonians of the massless Dirac fermion
Finite temperature negativity Hamiltonians of the massless Dirac fermion
A bstract The negativity Hamiltonian, defined as the logarithm of a partially transposed density matrix, provides an operatorial characterisation of mixed-state entanglement. However, so far, it has only been studied for the mixed-state density matrices corresponding to subsystems of globally pure states. Here, we consider as a genuine example of …