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Optica Publishing Group
  • International Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 1994),
  • paper QThD5

Dissipation-induced squeezing in mesoscopic branching circuits

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Abstract

A partitioned system of electrons is mathematically equivalent to an assembly of two- level atoms described by spin operators. The spin-operator uncertainty relation can therefore be interpreted as a number-phase- uncertainty relation for the partition of a single electron. This electron-number uncertainty manifests as a current-difference noise in the output leads of the mesoscopic branching circuit. Similarly, the phase uncertainty is revealed by the properly normalized current-difference fluctuations of the output leads for an interferometric geometry.

© 1994 Optical Society of America

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