Cybernetics Department,
Kyiv Taras Shevchenko University,
64 Volodymyrska Str., 01033, Kyiv, UKRAINE
E-mail: prosk@unicyb.kiev.ua

Spectral properties of the field operators for the deformations of CCR

We study the field operators of the Fock representation of some deformations of CCR. In particular we consider the twisted CCR of W. Pusz and S.L. Woronowicz. The spectral properties of these operators are discussed.