2012/01/25 by Krzysztof Jachymski, Zbigniew Idziaszek · 6 citations
Chemistry · Mathematics · Physics and Astronomy · #Amplitude #Bose gas #Bose–Einstein condensate #Boson #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Eigenvalues and eigenvectors #Lattice (music) #Light scattering #Optical lattice #Phase function #Physics #Quantum #Quantum mechanics #Random Matrices and Applications #Scattering #Spectroscopy and Laser Applications #Superfluidity #Ultracold atom #cond-mat.quant-gas
paper · pdf · doi:10.1103/physreva.86.023607
published in Physical Review A 86(2) (American Physical Society) · v2: minor corrections to the text
arxiv created 2012/01/25 · openalex publication_date 2012/08/06 · arxiv updated 2013/05/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider a gas of bosons in a bichromatic optical lattice at finite temperatures. As the amplitude of the secondary lattice grows, the single-particle eigenstates become localized. We calculate the canonical partition function using exact methods for the noninteracting and strongly interacting limits and analyze the statistical properties of the superfluid phase, localized phase, and the strongly interacting gas. We show that those phases may be distinguished in experiment using off-resonant light scattering.