Finite-temperature properties of one-dimensional hard-core bosons in a quasiperiodic optical lattice

Abstract

We investigate the properties of impenetrable bosons confined in a one-dimensional lattice at finite temperature in the presence of an additional incommensurate periodic potential. Relying on the exact Fermi-Bose mapping, we study the effects of temperature on the one-particle density matrix and related quantities such as the momentum distribution function and the natural orbitals. We found evidence of a finite-temperature crossover related to the zero-temperature superfluid-to-Bose-glass transition that induces a delocalization of the lowest natural orbitals.

8 pages, 9 figures

References in corpus (14)

• Many-Body Physics with Ultracold Gases
• Direct observation of Anderson localization of matter-waves in a controlled disorder
• Bosonizing one-dimensional cold atomic gases
• Strongly interacting bosons in a disordered optical lattice
• The quasi-periodic Bose-Hubbard model and localization in one-dimensional cold atomic gases
• Phase Coherence and Superfluid-Insulator Transition in a Disordered Bose-Einstein Condensate
• Emergence of quasi-condensates of hard-core bosons at finite momentum
• Universal properties of hard-core bosons confined on one-dimensional lattices
• Ground-state properties of hard-core bosons confined on one-dimensional optical lattices
• Momentum distribution dynamics of a Tonks-Girardeau gas: Bragg reflections of a quantum many-body wavepacket
• Phase diagram and momentum distribution of an interacting Bose gas in a bichromatic lattice
• Finite-temperature properties of hard-core bosons confined on one-dimensional optical lattices
• Lattice modulation spectroscopy of strongly interacting bosons in disordered and quasi-periodic optical lattices
• Quantum criticality in disordered bosonic optical lattices

Cited by in corpus (15)

• Many-Body Localization in a Quasiperiodic System
• Many-body localization characterized from a one-particle perspective
• Observation of a disordered bosonic insulator from weak to strong interactions
• Quenches in a quasi-disordered integrable lattice system: Dynamics and statistical description of observables after relaxation
• Ultracold bosons with short-range interaction in regular optical lattices
• One-particle density matrix characterization of many-body localization
• Fraction of delocalized eigenstates in the long-range Aubry-André-Harper model
• Single-particle and many-body analyses of a quasiperiodic integrable system after a quench
• Many-body localization of spinless fermions with attractive interactions in one dimension
• Finite-temperature effects on interacting bosonic 1D systems in disordered lattices
• Strongly interacting bosons in multi-chromatic potentials supporting mobility edges: localization, quasi-condensation and expansion dynamics
• Exact spectral function of the Tonks-Girardeau gas at finite temperature
• A finite temperature study of ideal quantum gases in the presence of one dimensional quasi-periodic potential
• Effective temperature from fluctuation-dissipation theorem in systems with bipartite eigenmode entanglement
• Properties of bosons in a one-dimensional bichromatic optical lattice in the regime of the Sine-Gordon transition: a Worm Algorithm Monte Carlo study