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Quantum Simulation

Real-time simulation of the Schwinger effect with Matrix Product States

arXiv
Authors: Boye Buyens, Jutho Haegeman, Florian Hebenstreit, Frank Verstraete, Karel Van Acoleyen

Year

2016

Paper ID

42061

Status

Preprint

Abstract Read

~2 min

Abstract Words

105

Citations

N/A

Abstract

Matrix Product States (MPS) are used for the simulation of the real-time dynamics induced by an electric quench on the vacuum state of the massive Schwinger model. For small quenches it is found that the obtained oscillatory behavior of local observables can be explained from the single-particle excitations of the quenched Hamiltonian. For large quenches damped oscillations are found and comparison of the late time behavior with the appropriate Gibbs states seems to give some evidence for the onset of thermalization. Finally, the MPS real-time simulations are explicitly compared with the semi-classical approach and, as expected, agreement is found in the limit of large quenches.

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  • This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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  • Matrix Product States (MPS) are used for the simulation of the real-time dynamics induced by an electric quench on the vacuum state of the massive Schwinger model.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1612.00739 [2] arXiv https://arxiv.org/abs/1612.00739 [3] Publisher https://arxiv.org/abs/1612.00739

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