Séminaire du LPTMS: Luca Tagliacozzo

Physics of the 1D long range Ising model in a transverse field

Luca Tagliacozzo, ICFO Barcelone

Long range interacting systems can show different behaviour from their short range version. Recently experiments with trapped ions have started to investigate them. I will charaterize  the ground state and low energy excitations of the long range Ising model in a transverse field, the simplest interacting long range model in 1D. In particular I will focus on the complexity of the ground state wave function in terms of entanglement measure and more traditional spin correlations. I will also present some results about the violation of causality when the long range interactions decay slowly enough with the distance. I will also briefly review the experiments with trapped ions that have confirmed our predictions.

Date/Time : 18/03/2014 - 11:00 - 12:00

Location : LPTMS, salle 201, 2ème étage, Bât 100, Campus d'Orsay

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