Fault-Tolerant Dissipative Preparation of Atomic Quantum Registers with Fermions
arXiv:quant-ph/0502171 · doi:10.1103/PhysRevA.72.032332
Abstract
We propose a fault tolerant loading scheme to produce an array of fermions in an optical lattice of the high fidelity required for applications in quantum information processing and the modelling of strongly correlated systems. A cold reservoir of Fermions plays a dual role as a source of atoms to be loaded into the lattice via a Raman process and as a heat bath for sympathetic cooling of lattice atoms. Atoms are initially transferred into an excited motional state in each lattice site, and then decay to the motional ground state, creating particle-hole pairs in the reservoir. Atoms transferred into the ground motional level are no longer coupled back to the reservoir, and doubly occupied sites in the motional ground state are prevented by Pauli blocking. This scheme has strong conceptual connections with optical pumping, and can be extended to load high-fidelity patterns of atoms.
arXiv comment12 pages, 7 figures, RevTex 4
References in corpus (31)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Cold bosonic atoms in optical lattices
- Condensation of Pairs of Fermionic Atoms Near a Feshbach Resonance
- Collapse and Revival of the Matter Wave Field of a Bose-Einstein Condensate
- Matrix Product Density Operators: Simulation of finite-T and dissipative systems
- Transition from a strongly interacting 1D superfluid to a Mott insulator
- The cold atom Hubbard toolbox
- Experimental Study of the BEC-BCS Crossover Region in Lithium 6
- Evidence for Superfluidity in a Resonantly Interacting Fermi Gas
- Fermionic atoms in a 3D optical lattice: Observing Fermi-surfaces, dynamics and interactions
- Mixed-state dynamics in one-dimensional quantum lattice systems: a time-dependent superoperator renormalization algorithm
- Atom--Molecule Coherence in a Bose-Einstein Condensate
- Tuning the scattering length with an optically induced Feshbach resonance
- Conversion of an Atomic Fermi Gas to a Long-Lived Molecular Bose Gas
- Coherent transport of neutral atoms in spin-dependent optical lattice potentials
- High-temperature superfluidity of fermionic atoms in optical lattices
- Fermi-Bose quantum degenerate ^40 K - ^87 Rb mixture with attractive interaction
- Production of Long-Lived Ultracold Li2 Molecules from a Fermi gas
- Measurement of positive and negative scattering lengths in a Fermi gas of atoms
- Three-body problem in Fermi gases with short-range interparticle interaction
- Resonant control of elastic collisions in an optically trapped Fermi gas of atoms
- Atomic quantum gases in Kagomé lattices
- Self-consistent model of ultracold atomic collisions and Feshbach resonances in tight harmonic traps
- Defect-Suppressed Atomic Crystals in an Optical Lattice
- Quantum Computing with Neutral Atoms in an Optical Lattice
- Single Atom Cooling by Superfluid Immersion: A Non-Destructive Method for Qubits
- A Quantum Tweezer for Atoms
- Ensemble Quantum Computation with atoms in periodic potentials
- Efficient and robust initialization of a qubit register with fermionic atoms
- Extracting Atoms on Demand with Lasers
- Scalable register initialization for quantum computing in an optical lattice
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- Cooling in strongly correlated optical lattices: prospects and challenges
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- d-wave resonating valence bond states of fermionic atoms in optical lattices
- Dark state cooling of atoms by superfluid immersion
- Dissipative dynamics of atomic Hubbard models coupled to a phonon bath: Dark state cooling of atoms within a Bloch band of an optical lattice
- State-dependent lattices for quantum computing with alkaline-earth-metal atoms
- Simulating high-temperature superconductivity model Hamiltonians with atoms in optical lattices
- Atomic lattice excitons: from condensates to crystals
- Classical simulation of dissipative fermionic linear optics