Ultracold Bosons in a Tilted Multi-level Double-Well Potential
arXiv:quant-ph/0609119 · doi:10.1103/PhysRevLett.99.200402
Abstract
The N -body problem in a double well requires new features for quantum information processing, macroscopic quantum superposition, and other fundamental studies of quantum many body physics in ultracold atoms. One needs (a) tilt, and (b) to go beyond the single-particle ground state in each well, i.e., to two or more energy levels. For (a), we show that a small potential difference between the wells, or tilt, causes the decoherence of Schrodinger cat states. However, these states reappear when the tilt can be compensated by atom-atom interactions; these tilted cat states constitute partial cats that are protected from decoherence by the many body wavefunction. For (b), we provide explicit criteria for when two energy levels are needed to describe the state space. For typical experimental parameters, two levels are indeed required for creation of cat states.
4 pages, 3 figures
References in corpus (21)
- Direct Observation of Tunneling and Nonlinear Self-Trapping in a single Bosonic Josephson Junction
- Quantum Coherent Atomic Tunneling between Two Trapped Bose-Einstein Condensates
- Matter-wave interferometry in a double well on an atom chip
- A lattice of double wells for manipulating pairs of cold atoms
- Josephson effect between trapped Bose-Einstein condensates
- The Gross-Pitaevskii Equation for Bose Particles in a Double Well Potential: Two Mode Models and Beyond
- Spatial fragmentation of a Bose-Einstein condensate in a double-well potential
- Quantum computations with atoms in optical lattices: marker qubits and molecular interactions
- Quantum phase space picture of Bose-Einstein Condensates in a double well: Proposals for creating macroscopic quantum superposition states and a study of quantum chaos
- Entanglement dynamics in the Lipkin-Meshkov-Glick model
- Thermal vs quantum decoherence in double well trapped Bose-Einstein condensates
- Dynamic splitting of a Bose-Einstein Condensate
- Condensate splitting in an asymmetric double well for atom chip based sensors
- Optical Weak Link between Two Spatially Separate Bose-Einstein Condensates
- Quantum dynamics of a model for two Josephson-coupled Bose--Einstein condensates
- Non-equilibrium coherence dynamics of a soft boson lattice
- Many-body interband tunneling as a witness for complex dynamics in the Bose-Hubbard model
- Multiconfigurational Hartree-Fock theory for identical bosons in a double well
- Time-dependent multi-orbital mean-field for fragmented Bose-Einstein condensates
- Behaviour of the energy gap in a model of Josephson coupled Bose-Einstein condensates
- Tunneling of localized excitations: giant enhancement due to fluctuations
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