Heidelberg 2015 – wissenschaftliches Programm

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SYEM: Symposium Extreme Matter: From Cold Atoms to the Quark Gluon Plasma

SYEM 2: Symposium Extreme Matter II

SYEM 2.2: Vortrag

Mittwoch, 25. März 2015, 14:45–15:00, C/HSO

Lattice gauge tensor networks, and the SU(2) gauge invariant model — •Pietro Silvi — Ulm universität, Ulm, Deutschland

A unified framework to describe lattice gauge theories by means of tensor networks is presented: this framework is efficient as it exploits the high amount of local symmetry content native of these systems describing only the gauge invariant subspace. The gauge symmetry is cast in terms of the quantum link formulation, which es exploited to achieve a substantial speed-up in real and imaginary time evolution, compared to standard tensor network techniques. This technology is then adopted to study an SU(2)-gauge invariant lattice model, and detect its different phases: this research is meant to idntify the analogies to QCD and other high energy field theories in low dimensions.