Kerr-nonlinearity Enhanced Conventional Photon Blockade in Second-order-nonlinear System

In the recent publication [Phys. Rev. B 87, 235319 (2013)], the conventional photon blockade(CPB) was studied for the low frequency mode in a second-order nonlinear system. In this paper, we will study the CPB for the high frequency mode in a second-order nonlinear system with the Kerr nonlinearity filling in the low-frequency cavity. By solving the master equation and calculating the zero-delay-time second order correlation function $g^{(2)}(0)$, strong photon antibunching can be obtained in the high frequency cavity. The optimal condition for strong antibunching is found by analyticcal culations and discussions of the optimal condition are presented. We find that the Kerr-nonlinearities can enhanced the CPB effect. In addition, this scheme is not sensitive to the reservoir temperature, which make the current system easier to implement experimentally

Study on the Credit Evolution Game of Companies and Banks

Abstract-Eration between the socialist market economy is about to become one of the important trend. This paper discusses the theory of evolution, under the condition of the method of game theory, research of the bank and enterprise of cooperative behavior evolution law and set up normally bank and evolutionary game model of enterprise and enterprise can't pay the mortgage under the circumstance of asymmetric game model, study the equilibrium respectively, clear cooperation balanced decision factors, namely cooperation initial cost of the need to pay, cooperation by their income and against the contract price and to assume responsibility, won and reality fitting evolution stable strategy, bank and enterprise both sides also provides some reference reference. Based on this, puts forward how to make sure the enterprise of effective measures to pay the mortgage, to bank and enterprise puts forward the good faith cooperation is the best way to achieve a win-win both sides