Migration of bosonic particles across a Mott insulator to superfluid phase interface
arXiv:0708.2667 · doi:10.1103/PhysRevLett.100.070602
Abstract
We consider a boundary between a Mott insulator and a superfluid region of a Bose-Hubbard model at unit filling. Initially both regions are decoupled and cooled to their respective ground states. We show that, after switching on a small tunneling rate between both regions, all particles of the Mott region migrate to the superfluid area. This migration takes place whenever the difference between the chemical potentials of both regions is less than the maximal energy of any eigenmode of the superfluid. We verify our results numerically with DMRG simulations and explain them analytically with a master equation approximation, finding good agreement between both approaches. Finally we carry out a feasibility study for the observation of the effect in coupled arrays of micro-cavities and optical lattices.
arXiv comment5 pages, 6 figures, to appear in Phys. Rev. Lett
References in corpus (15)
- Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
- Time-dependent density-matrix renormalization-group using adaptive effective Hilbert spaces
- Strongly Interacting Polaritons in Coupled Arrays of Cavities
- Quantum phase transitions of light
- Quench dynamics and non equilibrium phase diagram of the Bose-Hubbard model
- Photon blockade induced Mott transitions and XY spin models in coupled cavity arrays
- Quantum Phase Transitions and Vortex Dynamics in Superconducting Networks
- Exact relaxation in a class of non-equilibrium quantum lattice systems
- A neutral atom quantum register
- Dynamics and manipulation of entanglement in coupled harmonic systems with many degrees of freedom
- Formation of spatial shell structures in the superfluid to Mott insulator transition
- Mott-insulating and glassy phases of polaritons in 1D arrays of coupled cavities
- Effective spin systems in coupled micro-cavities
- Strong photon non-linearities and photonic Mott insulators
- Excitation and Entanglement Transfer Versus Spectral Gap
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