4 papers
Entanglement asymmetry in the gapped XYZ spin- chain
Felipe Taha Sant'Ana
The entanglement asymmetry measures how strongly a symmetry is broken inside a subsystem. Analytic results at equilibrium have so far covered free theories and, perturbatively, the…
Large- scaling of Tan's contact for the harmonically trapped Tonks--Girardeau gas at finite temperature
Felipe Taha Sant'Ana
We derive the canonical-ensemble scaling of Tan's contact for harmonically trapped Tonks--Girardeau bosons at finite temperature in the large- limit. The leading scaling coe…
Weak-Coupling Limit of the Lattice Nonlinear Schrödinger Integral Equation
Felipe Taha Sant'Ana
We study the ground-state integral equation of the quantum lattice nonlinear Schrödinger model -- equivalently the isotropic Heisenberg XXX spin chain with spin -- in the…
Two-spinon effects on the thermal Tonks-Girardeau gas
Felipe Taha Sant'Ana, Hui Liu
We study the effects of the two-spinon excitations on the field-field correlator of the Tonks-Girardeau gas. While these excitations have been previously examined in the ground sta…