Dark-State Cooling of Atoms by Superfluid Immersion

2006/07/10 by A. Griessner, Andrew J. Daley, A. J. Daley +5 · 4 citations
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum Information and Cryptography #Strong Light-Matter Interactions #cond-mat.other #quant-ph

paper · pdf · doi:10.1103/physrevlett.97.220403

published as Phys. Rev. Lett 97, 220403 (2006) · 4 pages, 4 figures, RevTeX 4

arxiv created 2006/07/10 · openalex publication_date 2006/11/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We propose and analyze a scheme to cool atoms in an optical lattice to ultralow temperatures within a Bloch band and away from commensurate filling. The protocol is inspired by ideas from dark-state laser cooling but replaces electronic states with motional levels and spontaneous emission of photons by emission of phonons into a Bose-Einstein condensate, in which the lattice is immersed. In our model, achievable temperatures correspond to a small fraction of the Bloch bandwidth and are much lower than the reservoir temperature. This is also a novel realization of an open quantum optical system, where known tools are combined with new ideas involving cooling via a reservoir.

Citations

• Matrix Product Density Operators: Simulation of Finite-Temperature and Dissipative Systems
• Bose-Fermi Mixtures in a Three-Dimensional Optical Lattice
• Localization of Bosonic Atoms by Fermionic Impurities in a Three-Dimensional Optical Lattice
• Implementation of Spin Hamiltonians in Optical Lattices
• Defect-Suppressed Atomic Crystals in an Optical Lattice
• Tuning the Scattering Length with an Optically Induced Feshbach Resonance

Cited by

• Dissipative dynamics of atomic Hubbard models coupled to a phonon bath: dark state cooling of atoms within a Bloch band of an optical lattice
• Dynamics, dephasing and clustering of impurity atoms in Bose–Einstein condensates
• Transport of strong-coupling polarons in optical lattices
• Thermometry and signatures of strong correlations from Raman spectroscopy of fermionic atoms in optical lattices