Visibility of Cold Atomic Gases in Optical Lattices for Finite Temperatures

Abstract

In nearly all experiments with ultracold atoms time-of-flight pictures are the only data available. In this paper we present an analytical strong-coupling calculation for those time-of-flight pictures of bosons in an optical lattice in the Mott phase. This allows us to determine the visibility, which quantifies the contrast of peaks in the time-of-flight pictures, and we suggest how to use it as a thermometer.

Author Information under http://www.theo-phys.uni-essen.de/tp/ags/pelster_dir/

References in corpus (28)

• Many-Body Physics with Ultracold Gases
• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
• Anderson localization of a non-interacting Bose-Einstein condensate
• Quench dynamics and non equilibrium phase diagram of the Bose-Hubbard model
• Ultracold heteronuclear molecules in a 3D optical lattice
• Bose-Fermi Mixtures in a Three-dimensional Optical Lattice
• Localization of bosonic atoms by fermionic impurities in a 3d optical lattice
• Monte Carlo study of two-dimensional Bose-Hubbard model
• Free fermion antibunching in a degenerate atomic Fermi gas released from an optical lattice
• Formation of spatial shell structures in the superfluid to Mott insulator transition
• Mixtures of Bosonic and Fermionic Atoms in Optical Lattices
• Interference pattern and visibility of a Mott insulator
• Boson Mott insulators at finite temperatures
• Expansion of a quantum gas released from an optical lattice
• Quantum Information Processing in Optical Lattices and Magnetic Microtraps
• Quantum Phase Diagram of Bosons in Optical Lattices
• Phase Diagram for Ultracold Bosons in Optical Lattices and Superlattices
• Intrinsic Heating and Cooling in Adiabatic Processes for Bosons in Optical Lattices
• Bose-Hubbard phase diagram with arbitrary integer filling
• Mean-field phase diagram of disordered bosons in a lattice at non-zero temperature
• Do mixtures of bosonic and fermionic atoms adiabatically heat up in optical lattices?
• The Mott insulator phase of the one dimensional Bose-Hubbard model: a high order perturbative study
• Theory of correlations between ultra-cold bosons released from an optical lattice
• Effective Action Approach for Quantum Phase Transitions in Bosonic Lattices
• Ultracold bosons in lattices with binary disorder
• Tunneling-induced damping of phase coherence revivals in deep optical lattices
• Superfluid-insulator transition in Fermi-Bose mixtures and the orthogonality catastrophe

Cited by in corpus (22)

• Cooling in strongly correlated optical lattices: prospects and challenges
• Spin gradient thermometry for ultracold atoms in optical lattices
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• Process chain approach to the Bose-Hubbard model: Ground-state properties and phase diagram
• Producing and storing spin-squeezed states and Greenberger-Horne-Zeilinger states in a one-dimensional optical lattice
• Schwinger-Keldysh approach to out of equilibrium dynamics of the Bose Hubbard model with time varying hopping
• Atom-atom correlations in time-of-flight imaging of ultra-cold bosons in optical lattices
• Effective action approach to the p-band Mott insulator and superfluid transition
• Momentum distribution of the insulating phases of the extended Bose-Hubbard model
• Coherent phase slips in coupled matter-wave circuits
• Ginzburg-Landau Theory for the Jaynes-Cummings-Hubbard Model
• Kibble-Zurek scaling of the one-dimensional Bose-Hubbard model at finite temperatures
• Real-Time Ginzburg-Landau Theory for Bosons in Optical Lattices
• Generalized Effective Potential Landau Theory for Bosonic Quadratic Superlattices
• Floquet-Induced Superfluidity with Periodically Modulated Interactions of Two-Species Hardcore Bosons in a One-dimensional Optical Lattice
• Global-to-local incompatibility, monogamy of entanglement, and ground-state dimerization: Theory and observability of quantum frustration in systems with competing interactions
• Visibility of ultra-cold Bose system in triangular optical lattices
• Finite-temperature degenerate perturbation theory for bosons in optical lattices
• Efficiency for preforming molecules from mixtures of light Fermi and heavy Bose atoms in optical lattices: the strong-coupling-expansion method
• Thermally induced coherence in a Mott insulator of bosonic atoms
• Paramagnetic phases of strongly correlated ultracold fermions coupled to an optical cavity
• Following Floquet states in high-dimensional Hilbert spaces