Physics – Quantum Physics
Scientific paper
2009-01-17
Phys.Rev.D78:105021,2008
Physics
Quantum Physics
17 pages, no figure
Scientific paper
10.1103/PhysRevD.78.105021
The possibility of testing spatial noncommutativity by current experiments on normal quantum scales is investigated. For the case of both position-position and momentum-momentum noncommuting spectra of ions in crossed electric and magnetic fields are studied in the formalism of noncommutative quantum mechanics. In a limit of the kinetic energy approaching its lowest eigenvalue this system possesses non-trivial dynamics. Signals of spatial noncommutativity in the angular momentum are revealed. They are within limits of the measurable accuracy of current experiments. An experimental test of the predictions using a modified electron momentum spectrum is suggested. The related experimental sensitivity and subtle points are discussed. The results are the first step on a realizable way towards a conclusive test of spatial noncommutativity.
Gao Ke-Lin
Ning Chuan-Gang
Zhang Jian-Zu
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