Atomtronics with holes: Coherent transport of an empty site in a triple well potential

Details Atomtronics with holes: Coherent transport of an empty site in a triple well potential Atomtronics with holes: Coherent transport of an empty site in a triple well potential

2009-12-22

arxiv.org/abs/0912.4362v2

Phys. Rev. A 82, 013604 (2010)

Physics

Quantum Physics

9 pages, 6 figures

Scientific paper

10.1103/PhysRevA.82.013604

We investigate arrays of three traps with two fermionic or bosonic atoms. The tunneling interaction between neighboring sites is used to prepare multi-site dark states for the empty site, i.e., the hole, allowing for the coherent manipulation of its external degrees of freedom. By means of an ab initio integration of the Schr\"odinger equation, we investigate the adiabatic transport of a hole between the two extreme traps of a triple-well potential. Furthermore, a quantum-trajectory approach based on the de Broglie-Bohm formulation of quantum mechanics is used to get physical insight into the transport process. Finally, we discuss the use of the hole for the construction of a coherent single hole diode and a coherent single hole transistor.

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