Atomtronics with holes : coherent transport of an empty site in a triple-well potential :
Benseny, Antoni (Universitat Autònoma de Barcelona. Departament de Física)
Fernández-Vidal, Sònia, 1978- (Universitat Autònoma de Barcelona. Departament de Física)
Bagudà, Joan (Universitat Autònoma de Barcelona. Departament de Física)
Corbalán, R. (Ramón) (Universitat Autònoma de Barcelona. Departament de Física)
Picón Álvarez, Antonio (Universitat Autònoma de Barcelona. Departament de Física)
Roso, Luis (Centro de Láseres Pulsados (Salamanca, Castella i Lleó))
Birkl, Gerhard (Universität Darmstadt. Institut für Angewandte Physik, Technische)
Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
American Physical Society

Date:	2010
Abstract:	We investigate arrays of three traps with two fermionic or bosonic atoms. The tunneling interaction between neighboring sites is used to prepare multisite dark states for the empty site (i. e. , the hole) which allows for the coherent manipulation of its external degrees of freedom. By means of an ab initio integration of the Schrödinger 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.
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	Physical review. A, Vol. 82, Issue 1 (July 2010) , p. 013604-1-013604-8, ISSN 1050-2947

DOI: 10.1103/PhysRevA.82.013604

8 p, 644.8 KB

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