title: Measuring entanglement using quantum quenches.
abstract: We show that block entanglement entropies in one-dimensional systems close to a quantum critical point can, in principle, be measured in terms of the population of low-lying energy levels following a certain type of local quantum quench.
authors.affiliation: Rudolf Peierls Centre for Theoretical Physics, Oxford University, 1 Keble Road, Oxford, OX1 3NP, United Kingdom.
authors.forename: John
authors.initials: J
authors.lastname: Cardy