Valence Bond Entanglement Estimators
by Vladimir Rittenberg
Abstract: We present four estimators of the entanglement of ground-states in which the coefficients are all real nonnegative and therefore can be interpreted as probabilities of configurations. Such ground-states can be given by superpositions of valence bond states which can describe equilibrium but also stationary states of stochastic models.
Using analytical and numerical methods we compare the values of the estimators in the directed polymer and the raise and peel models which have massive and conformal invariant and non-conformal invariant massless phases.
For More Information: Iwan Jensen I.Jensen@ms.unimelb.edu.au