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Tuesday, 18 September, 2007

Mesoscopic Superposition States in Relativistic Landau Levels

A. Bermudez, M. A. Martin-Delgado, and E. Solano -
Phys. Rev. Lett. 99, 123602 (2007)

We show that a linear superposition of mesoscopic states in relativistic Landau levels can be built when an external magnetic field couples to a relativistic spin 1/2 charged particle. Under suitable initial conditions, the associated Dirac equation produces unitarily superpositions of coherent states involving the particle orbital quanta in a well-defined mesoscopic regime. We demonstrate that these mesoscopic superpositions have a purely relativistic origin and disappear in the nonrelativistic limit.


Article on the journal's website