Acta Sinica Quantum Optica
The Evolution Properties of the Field Entropy in the System of Two-mode Squeezing Vacuum Field with Atomic Motion
Yongping Li
Abstract
The entropy evolution properties of field in the system of two-mode squeezing vacuum field interacting with the atomic motion are studied by means of quantum theory.The influences of atomic motion and the field structure in different initial states are discussed emphatically.The results show that the field entropy is determined by the velocity of the atomic motion and the parameter of the field mode structure through time parameter sin~2(epgt/2).The atomic motion and the parameter of the field mode structure lead to additional vibration entropy.