Entanglement in massive Schwinger model at finite temperature and density

Journal Article · 22 January 2024 · Physical Review. D.

DOI: https://doi.org/10.1103/PhysRevD.109.016023 · OSTI ID:2282390

Grieninger, Sebastian ; Ikeda, Kazuki; Kharzeev, Dmitri E.; Zahed, Ismail

We evaluate the entanglement entropy and entropic function of massive two dimensional quantum electrodynamics (Schwinger model) at finite temperature, density, and $\theta$ -angle. In the strong coupling regime, the entropic function is dominated by the boson mass for large spatial intervals, and reduces to the conformal field theory result for small spatial intervals. We also discuss the entanglement spectrum at finite temperature and a finite $\theta$ -angle. Published by the American Physical Society 2024

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States); Stony Brook University, NY (United States)
• Sponsoring Organization: USDOE; USDOE Office of Science (SC), Nuclear Physics (NP)
• Grant/Contract Number: FG02-88ER40388; SC0012704
• OSTI ID: 2282390
• Report Number(s): BNL--225474-2024-JAAM; 016023
• Journal Information: Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 1 Vol. 109; ISSN PRVDAQ; ISSN 2470-0010
• Publisher: American Physical SocietyCopyright Statement
• Country of Publication: United States
• Language: English