https://doi.org/10.1140/epjp/s13360-022-02962-7
Regular Article
Nonclassical and quantum phase properties in exciton induced exciton–vacuum field interaction
Department of Physics, Visva-Bharati, 731 235, Santiniketan, India
Received:
7
May
2022
Accepted:
15
June
2022
Published online:
1
July
2022
The nonclassical properties along with the quantum phase properties have been investigated in the case of coherent exciton–vacuum photon interaction in a semiconductor. At first, the field operators are determined analytically by a perturbative method and the criteria for various nonclassicalities are expressed in terms of them. the phase fluctuations are measured through the parameters suggested by Nieto and Carruthers in the light of Pegg-Barnett formalism. The analytical solutions show some nonclassical properties like squeezing whereas other properties like entanglement are observed in numerical calculations. The variations of different phase fluctuation parameters are shown. The increasing value of detuning between two modes changes the phase fluctuation pattern. Secondly, the joint phase probability distributions of exciton and photon modes are calculated at various dimensionless times. They exhibit a number of patterns from which inferences on phase properties are made. The phases of the two modes are not randomized with time and definitive phase correlation exists between the two modes.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022
