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 2.4: Vortrag

Mittwoch, 25. März 2015, 15:15–15:30, C/HSO

String Breaking in a (1+1)d Quantum Link Model — •Thomas Pichler — Institut für komplexe Quantensysteme, Universität Ulm, Deutschland

The problem of simulating quantum systems is of ongoing interest in material science, information science and fundamental physics. Modern numerical algorithms allow us to tackle large quantum systems and several experimental implementations with atomic or solid state systems have already begun to perform simulations directly with quantum objects. The progress in the field has motivated to propose more possible applications of such quantum simulators. Recently there have been ideas for the simulation of gauge theories as known from high energy physics on an atomic quantum simulator. In this context we investigate possible applications of such simulators by numerically implementing the proposed gauge theories in tensor network algorithms. Particularly, we look at the (1+1)d quantum link model, also known as reduced Schwinger model, representing quantum electrodynamics in one spatial dimension. This model is a non-perturbative representation of a gauge theory allowing us to study the full out-of-equilibrium dynamics and ground state properties in different parameter regimes. A prominent mechanism expected in quantum chromodynamics is string breaking, which this talk will be focused on.