6 research outputs found
Robustness of nonclassical superpositions states against decoherence
We make a comparative study of quadrature squeezing, photon-number
distribution and Wigner function in a decayed quantum system. Specifically, for
a field mode prepared initially in cat states interacting with a
zero-temperature environment, we show that the rate of reduction of the
nonclassical effects in this system is proportional to the occurrence of the
decoherence process.Comment: 11 pages, 4 figure