Steady-state Preparation Scheme And Quantum Statistical Properties Of A Class Of Superbunching Light Fields

As a new type of light field,superbunching light will play an important role in quantum optics and quantum information processing application.In this thesis we focus on the steady-state preparation of the superbunching light with a driven cavity QED,wherein a two-level atom interacts with the quantized light field in a dispersive regime.By solving the master equation method for a driven cavity QED system,we first discuss how the driving light transmits through the system with a dispersively-coupled two-level atom.The transmission spectra of the light prove a feasible approach for the non-destructive measurements of the atomic states.Furthermore,by calculating the quantum statistical properties of the steady-state output light field,especially the value of its second-order correlation function,we verify that the output field is really a steady-state superbunching light: the value of the relevant second-order correlation function depends on the coherently superposition behavior of the atomic states,and could be larger than 2.It is shown that,as long as the atomic state coherence characteristics are properly adjusted,a very large second-order correlation function value of the transmitted light can be obtained,thereby displaying the strong photon superbunching effect.Comparing with the other two typical superbuncing light field states,the squeezed vacuum state and the pseudo-thermal light,one of the most advantages of the present preparation is,the quantum statistical properties of the steady-state superbunching light prepared by the present configuration is controllable.We show numerically that the value of the second-order correlation function is greatly greater than 2,and the distribution of the photons in such a steady-state light field is super-Poisson.We also verify that the present steady-state light field reveals the strong squeezing effects on the quantum variants of the orthogonal components of the light field.Hopefully,the steady-state superbunching light prepared by the present method could be applied to the future high-quality optical quantum secure communication and the desired optical quantum radar fields...