Tunneling electro-conductance of atomic Bose condensates
arXiv:0807.0031 · doi:10.1103/PhysRevA.79.063614
Abstract
We consider interaction of an electron with a Bose condensate of atoms having electron affinity. Though states of the electron attached to atoms form a continuous band, tunneling through this band is strongly suppressed by quantum fluctuations of the condensate density. We adapt standard field theory methods originally developed for description of a particle propagating trough a disordered potential and present an exactly soluble analytical model of the process. In contrast with the standard description, we take into account inelastic processes associated with quantum transitions in the condensate. Possibilities of the experimental observation of the phenomenon are discussed.
26 pages, 12 figures
References in corpus (17)
- Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
- Experimental observation of the Anderson transition with atomic matter waves
- Anderson Localization of Expanding Bose-Einstein Condensates in Random Potentials
- Atomtronics: ultracold atom analogs of electronic devices
- Static dielectric properties of carbon nanotubes from first principles
- Exact hydrodynamics of a trapped dipolar Bose-Einstein condensate
- Phase diagram of spin-1 bosons on one-dimensional lattices
- The trapped two-dimensional Bose gas: from Bose-Einstein condensation to Berezinskii-Kosterlitz-Thouless physics
- Transistor-Like Behavior of a Bose-Einstein Condensate in a Triple Well Potential
- Localization of Matter Waves in 2D-Disordered Optical Potentials
- Anderson localization of a Bose-Einstein condensate in a 3D random potential
- Superfluid-insulator transition in a moving system of interacting bosons
- Trapping cold atoms near carbon nanotubes: thermal spin flips and Casimir-Polder potential
- Dynamics of Bloch Oscillations in Disordered Lattice Potentials
- Semiclassical limits to the linewidth of an atom laser
- Three-dimensional effects in "atom diodes": atom-optical devices for one-way motion
- Derivation of hydrodynamics for the gapless mode in the BEC-BCS crossover from the exact one-loop effective action