2 papers
math-ph2019
Entanglement Content of Quantum Particle Excitations III. Graph Partition Functions
Olalla A. Castro-Alvaredo, Cecilia De Fazio, Benjamin Doyon +1
We consider two measures of entanglement, the logarithmic negativity and the entanglement entropy, between regions of space in excited states of many-body systems formed by a finit…
hep-th2019
Entanglement Content of Quantum Particle Excitations II. Disconnected Regions and Logarithmic Negativity
Olalla A. Castro-Alvaredo, Cecilia De Fazio, Benjamin Doyon +1
In this paper we study the increment of the entanglement entropy and of the (replica) logarithmic negativity in a zero-density excited state of a free massive bosonic theory, compa…