Photon bunching and anti-bunching with two dipole-coupled atoms in an optical cavity

Abstract

We investigate the effect of the dipole-dipole interaction (DDI) on the photon statistics with two atoms trapped in an optical cavity driven by a laser field and subjected to cooperative emission. By means of the quantum trajectory analysis and the second-order correlation functions, we show that the photon statistics of the cavity transmission can be flexibly modulated by the DDI while the incoming coherent laser selectively excites the atom-cavity system's nonlinear Jaynes-Cummings ladder of excited states. Finally, we find that the effect of the cooperatively atomic emission can also be revealed by the numerical simulations and can be explained with a simplified picture. The DDI induced nonlinearity gives rise to highly nonclassical photon emission from the cavity that is significant for quantum information processing and quantum communication.

Influence of driving ways on measurement of relative phase in a two-atoms cavity system*

“…Recently, the two-atoms cavity QED system is widely studied in many articles. [35][36][37][38][39][40][41][42][43][44][45] Agarwal et al showed a phenomenon in which the radiation can distinctly exceed the freespace superradiant behavior in a two-atoms cavity QED system by driving atoms. They call it hyperradiance.…”

Dynamics of a two dipole-coupled atom system driven by a quantized cavity field

“…In recent years, the twoatom system has attracted considerable attention both in theory and experiments, and it has been extensively investigated with and without considering the effects of the DDI. These include population revival [10], squeezing revival [11], transmission spectrum [12,13] and photon statistics [14][15][16][17][18]. Furthermore, the quantum correlation [19,20] and entanglement dynamics [21][22][23][24][25][26] of the two-atom system have also been discussed by different research groups.…”