Adiabatic cooling of Fermions in an optical lattice

Abstract

The entropy-temperature curves are calculated for non-interacting fermions in a 3D optical lattice. These curves facilitate understanding of how adiabatic changes in the lattice depth affect the temperature, and we demonstrate regimes where the atomic sample can be significantly heated or cooled. When the Fermi energy of the system is near the location of a band gap the cooling regimes disappear for all temperatures and the system can only be heated by lattice loading. For samples with greater than one fermion per site we find that lattice loading can lead to a large increase in the degeneracy of the system. We study the scaling properties of the system in the degenerate regimes and assess the effects of non-adiabatic loading.

6 pages, 4 figures

References in corpus (19)

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Cold bosonic atoms in optical lattices
• Collapse and Revival of the Matter Wave Field of a Bose-Einstein Condensate
• Observation of a Strongly-Interacting Degenerate Fermi Gas of Atoms
• A quasi-pure Bose-Einstein condensate immersed in a Fermi sea
• Creation of ultracold molecules from a Fermi gas of atoms
• Quantum phases in an optical lattice
• Coherent transport of neutral atoms in spin-dependent optical lattice potentials
• High-temperature superfluidity of fermionic atoms in optical lattices
• Production of Long-Lived Ultracold Li2 Molecules from a Fermi gas
• A Bose-Einstein condensate in an optical lattice
• Radio-Frequency Spectroscopy of Ultracold Fermions
• Atomic quantum gases in Kagomé lattices
• Production of a Fermi gas of atoms in an optical lattice
• Collisionally Induced Transport in Periodic Potentials
• Defect-Suppressed Atomic Crystals in an Optical Lattice
• Adiabatic loading of bosons into optical lattices
• Efficient and robust initialization of a qubit register with fermionic atoms
• `Flat Phase' Loading of a Bose-Einstein Condensate into an Optical Lattice

Cited by in corpus (24)

• Interaction-induced adiabatic cooling and antiferromagnetism of cold fermions in optical lattices
• Species-specific optical lattices
• Cooling in strongly correlated optical lattices: prospects and challenges
• Enhancement of super-exchange pairing in the periodically-driven Hubbard model
• Interaction-Induced Adiabatic Cooling for Antiferromagnetism in Optical Lattices
• Optical lattice platform for the SYK model
• Lattice Thermodynamics for Ultra-Cold Atoms
• Thermometry of Fermionic Atoms in an Optical Lattice
• Do mixtures of bosonic and fermionic atoms adiabatically heat up in optical lattices?
• Degenerate Fermi gas in a combined harmonic-lattice potential
• The role of interactions, tunneling and harmonic confinement on the adiabatic loading of bosons in an optical lattice
• Strongly Interacting Atoms and Molecules in a 3D Optical Lattice
• Interaction dependent temperature effects in Bose-Fermi mixtures in optical lattices
• Heteronuclear quantum gas mixtures
• Finite temperature coherence of the ideal Bose gas in an optical lattice
• Thermodynamics of quantum degenerate gases in optical lattices
• Domain wall dynamics in a two-component Bose-Mott insulator
• Strongly interacting one-dimensional bosons in arbitrary-strength optical lattices: from Bose-Hubbard to sine-Gordon and beyond
• Adiabatic cooling of a tunable Bose-Fermi mixture in an optical lattice
• The Symplectic Fermi Liquid and its realization in cold atomic systems
• State selective cooling of $\mathrm{SU}(N)$ Fermi-gases
• Cooling Quantum Gases with Entropy Localization
• Statistical mechanics of a Feshbach coupled Bose-Fermi gas in an optical lattice
• Heating and Cooling in Adiabatic Mixing process