Exact finite volume expectation values of conserved currents
Zoltán Bajnok, István Vona
Abstract
The vacuum expectation values of conserved currents play an essential role in the generalized hydrodynamics of integrable quantum field theories. We use analytic continuation to extend these results for the excited state expectation values in a finite volume. Our formulas are valid for diagonally scattering theories and incorporate all finite size corrections.
Topics & Concepts
Conserved quantityIntegrable systemAnalytic continuationFinite volume methodPhysicsQuantum field theoryExcited stateScatteringField (mathematics)Volume (thermodynamics)Mathematical physicsStatistical physicsQuantum mechanicsMathematicsClassical mechanicsQuantum electrodynamicsMathematical analysisPure mathematicsAlgebraic structures and combinatorial modelsBlack Holes and Theoretical PhysicsQuantum many-body systems