Metastable Bose-Einstein condensation in a strongly correlated optical lattice

2014/11/25 by David McKay, Ushnish Ray, Stefan S. Natu +5 · 10 citations
Physics and Astronomy · #Adiabatic process #Bose–Einstein condensate #Bose–Hubbard model #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Hubbard model #Lattice (music) #Metastability #Monte Carlo method #Optical lattice #Phase (matter) #Phase diagram #Physics #Quantum #Quantum Monte Carlo #Quantum many-body systems #Quantum mechanics #Quantum, superfluid, helium dynamics #Statistical physics #Superconductivity #Superfluidity #Supersolid #cond-mat.quant-gas

paper · pdf · doi:10.1103/physreva.91.023625

published in Physical Review A 91(2) (American Physical Society)

arxiv created 2014/11/25 · openalex publication_date 2015/02/24 · arxiv updated 2015/06/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The Bose-condensed fraction of a cold gas loaded into a three-dimensional optical lattice is studied both experimentally and theoretically, and the strong disagreement between experiment and theory at high temperatures indicates that the system may not reach equilibrium in this regime and that the condensate is metastable.

Citations

• Free-fall expansion of finite-temperature Bose–Einstein condensed gas in the non-Thomas–Fermi regime
• Experimental study of the thermodynamics of an interacting trapped Bose-Einstein condensed gas
• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Characteristics of Bose-Einstein condensation in an optical lattice
• Condensate Fraction in a 2D Bose Gas Measured across the Mott-Insulator Transition
• Excitations of a Superfluid in a Three-Dimensional Optical Lattice
• Quantum statistical mechanics in a closed system