Entanglement in massive Schwinger model at finite temperature and density
Sebastian Grieninger, Kazuki Ikeda, Dmitri E. Kharzeev, Ismaïl Zahed
Abstract
We evaluate the entanglement entropy and entropic function of massive two dimensional quantum electrodynamics (Schwinger model) at finite temperature, density, and <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>θ</a:mi></a:math>-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 <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mi>θ</c:mi></c:math>-angle. Published by the American Physical Society 2024
Topics & Concepts
Quantum entanglementPhysicsBosonConformal mapEntropy (arrow of time)Quantum mechanicsQuantum field theoryQuantum electrodynamicsConformal field theoryFunction (biology)QuantumMathematical physicsGeometryMathematicsEvolutionary biologyBiologyQuantum many-body systemsQuantum and electron transport phenomenaPhysics of Superconductivity and Magnetism