Real-time simulation of the Schwinger effect with matrix product states

Buyens, Boye; Haegeman, Jutho; Hebenstreit, Florian; Verstraete, Frank; Van Acoleyen, Karel (2017). Real-time simulation of the Schwinger effect with matrix product states. Physical review. D - particles, fields, gravitation, and cosmology, 96(11), p. 114501. American Physical Society 10.1103/PhysRevD.96.114501

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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. 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 compared with results from real-time lattice gauge theory which are expected to agree in the limit of large quenches.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Hebenstreit, Florian

Subjects:

500 Science > 530 Physics

ISSN:

1550-7998

Publisher:

American Physical Society

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

02 Mar 2018 14:24

Last Modified:

02 Mar 2018 14:24

Publisher DOI:

10.1103/PhysRevD.96.114501

ArXiv ID:

1612.00739

BORIS DOI:

10.7892/boris.108226

URI:

https://boris.unibe.ch/id/eprint/108226

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