Entanglement negativity in Galilean conformal field theories

Abstract

We obtain the entanglement negativity for various bipartite zero and finite temperature pure and mixed state configurations in a class of ( 1 + 1 )-dimensional Galilean conformal field theories. In this context, we establish a construction for computing the entanglement negativity for such bipartite states involving a suitable replica technique. Our construction exactly reproduces certain universal features observed for entanglement negativity of corresponding states in relativistic ( 1 + 1 )-dimensional conformal field theories.