Phys. Rev. Lett. 76, 1788–1791 (1996)Gauge Structures in Atom-Laser Interaction: Bloch Oscillations in a Dark LatticeReceived 6 July 1995; published in the issue dated 11 March 1996 Atoms in dark atomic ground states do not interact with the laser light present and are therefore not susceptible to spontaneous processes. Laser cooling populates these states. Confinement of atoms in dark states in a (periodic) gauge potential allows for a lattice of atoms with a very low decay rate, a dark lattice. A dark lattice is a promising system to observe Bloch oscillations of neutral atoms, i.e., periodic excursion across the Brillouin zone in a uniform force field. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.76.1788
DOI:
10.1103/PhysRevLett.76.1788
PACS:
32.80.Pj, 03.65.Ge, 42.50.Vk
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