In Optical Field Atomic Macroscopic Quantum Interference

We knew the microparticle all has the wave-particle duality, they cannot use the classical physical knowledge to describe, therefore the quantum interference and the classics interference have the enormous difference. According to the quantum theory wave-particle duality, the microparticle can look like the light wave to be same, has undulation characteristics and so on the interference, diffraction, forms the matter waves. The macroscopic quantum state said is the massive microparticles and the macroscopic granule similar rule which obtains with the statistical rule computation. For example: The light and the atom when are affecting mutually, as a result of the atomic energy interstage interference, appeared some new phenomena, like electromagnetic induction transparent, non-reverse laser and so on, has the important influence to humanity's life.The photon and the atom affect mutually more and more bring to people's attention, already had very many people to study the photon and the atomic mutual function.This article mainly studies the V - three energy level atom in big detune situation interference, and asks this model the fidelity.This article first introduced V - three energy level atoms andΛ- three energy level atom elementary knowledge. V - Three energy level atoms had many people to study, but the majority of people all studied V ? three energy level atoms with two cavity field function, then strove for its entanglement condition. But this article is through the research V- three energy level atom in single model micro cavity dynamics evolution, thus has analyzed its interference effect. Moreover, with the B-O approximate method, eliminates this model ground state heat insulation, extracts its density matrix in this foundation, calculates its quantum information fidelity.