Cooling toolbox for atoms in optical lattices

Abstract

We propose and analyze several schemes for cooling bosonic and fermionic atoms in an optical lattice potential close to the ground state of the no-tunnelling regime. Some of the protocols rely on the concept of algorithmic cooling, which combines occupation number filtering with ideas from ensemble quantum computation. We also design algorithms that create an ensemble of defect-free quantum registers. We study the efficiency of our protocols for realistic temperatures and in the presence of a harmonic confinement. We also propose an incoherent physical implementation of filtering which can be operated in a continuous way.

14 pages, 13 figures

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Cited by in corpus (15)

• Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
• Entanglement in continuous variable systems: Recent advances and current perspectives
• Monte Carlo study of two-dimensional Bose-Hubbard model
• Cooling in strongly correlated optical lattices: prospects and challenges
• Optical lattice quantum Hall effect
• The efficiencies of generating cluster states with weak non-linearities
• A quantum computation architecture using optical tweezers
• Loss in hybrid qubit-bus couplings and gates
• Dissipative dynamics of atomic Hubbard models coupled to a phonon bath: Dark state cooling of atoms within a Bloch band of an optical lattice
• An $\eta$-condensate of fermionic atom pairs via adiabatic state preparation
• Dipole oscillations of confined lattice bosons in one dimension
• Quantum control of continuous systems via nonharmonic potential modulation
• Initializing a Quantum Register from Mott Insulator States in Optical Lattices
• Cooling ultracold bosons in optical lattices by spectral transform
• Disappearance of Quasiparticles in a Bose Lattice Gas