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Title Liouvillian Dynamics of the Open Schwinger Model: String Breaking and Kinetic Dissipation in a Thermal Medium
Authors Felix Ringer, Keith Lee, Xiaojun Yao, James Mulligan
JLAB number JLAB-THY-23-3894
LANL number arXiv:2308.03878
Other number DOE/OR/23177-6820
Document Type(s) (Journal Article) 
Associated with EIC: Yes
Supported by Jefferson Lab LDRD Funding: No
Funding Source: Nuclear Physics (NP)

Compiled for Physical Review D
Volume 108
Page(s) 094518
Publication Abstract: Understanding the dynamics of bound state formation is one of the key questions in confining quantum field theories such as quantum chromodynamics. In this work, we consider a key aspect of this process within the Schwinger model: the breaking of a single string into two separated strings. We study the modification to the string breaking mechanism due to the presence of an external medium. To do this, we consider the Schwinger model as an open quantum system coupled to a thermal environment, where in the weakly coupled regime the real-time evolution can be described by a Lindblad evolution equation. We observe a delay of the string breaking due to dissipation of the string tension into the environment. We discuss how this process can be simulated on quantum computers, and perform an estimate of associated Trotter errors.
Experiment Numbers: other
Document: pdf
Accepted Manuscript: 2308.03878.pdf
Supporting Documents:
Supporting Datasets: