Phys. Rev. Lett. 65, 3341–3343 (1990)Squeezed fermion statesReceived 3 October 1990; published in the issue dated 24 December 1990 Fermionic squeezing is derived in analogy to squeezed light, but with two distinct features: (i) Intramode squeezing can be achieved by noise attenuation in the particle sector at the cost of noise amplification in the antiparticle sector (or vice versa). Multimode squeezing requires the presence of at least two field modes, one field mode acting similarly as the antiparticle sector in intramode squeezing. (ii) Due to the invariance of the operator algebra under generalized Bogoliubov-Valatin transformations, squeezing is characterized by trigonometric functions. Possibilities for an experimental realization are discussed. © 1990 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.65.3341
DOI:
10.1103/PhysRevLett.65.3341
PACS:
71.50.+t, 42.50.Dv
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