Local manipulation and measurement of nonlocal many-body operators in lattice gauge theory quantum simulators

Erez Zohar*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Lattice gauge theories form a very successful framework for studying nonperturbative gauge field physics, in particular in quantum chromodynamics. Recently, their quantum simulation on atomic and solid-state platforms has been discussed, aiming at overcoming some of the difficulties still faced by the conventional approaches (such as the sign problem and real time evolution). While the actual implementations of a lattice gauge theory on a quantum simulator may differ in terms of the simulating system and its properties, they are all directed at studying similar physical phenomena, requiring the measurement of nonlocal observables, due to the local symmetry of gauge theories. In this work, general schemes for measuring such nonlocal observables (Wilson loops and mesonic string operators) in general lattice gauge theory quantum simulators that are based merely on local operations are proposed.

Original languageAmerican English
Article number034518
JournalPhysical Review D
Volume101
Issue number3
DOIs
StatePublished - 1 Feb 2020

Bibliographical note

Publisher Copyright:
© 2020 American Physical Society.

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