Double well potentials and quantum gates

A system of particles in a double well potential is a widely studied and useful example for understanding quantum mechanics. This simple system has recently been used in theoretical proposals and related experiments as a way to make quantum logic gates for ultracold atoms confined in optical lattice...

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Bibliographic Details
Published in:American journal of physics 2011-07, Vol.79 (7), p.762-768
Main Authors: Foot, C. J., Shotter, M. D.
Format: Article
Language:English
Subjects:
Atoms & subatomic particles
Lattice theory
Optics
Quantum physics
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Summary:A system of particles in a double well potential is a widely studied and useful example for understanding quantum mechanics. This simple system has recently been used in theoretical proposals and related experiments as a way to make quantum logic gates for ultracold atoms confined in optical lattices. Such quantum gates are the fundamental building blocks for quantum information processing; in these proposals, a regular array of cold atoms in an optical lattice serves as the quantum register. We explain how this research can be understood in terms of well-known principles for systems of identical particles.
ISSN:0002-9505
1943-2909
DOI:10.1119/1.3583478