A duality principle for the multi-block entanglement entropy of free fermion systems
A duality principle for the multi-block entanglement entropy of free fermion systems
Abstract The analysis of the entanglement entropy of a subsystem of a one-dimensional quantum system is a powerful tool for unravelling its critical nature. For instance, the scaling behaviour of the entanglement entropy determines the central charge of the associated Virasoro algebra. For a free fermion system, the entanglement entropy …