<正> By using the method of eigenvectors,the atomic populations and emission spectrum are investigated in asystem that consists of a cascade three-level atom resonantly interacting with a single-mode field in a ...<正> By using the method of eigenvectors,the atomic populations and emission spectrum are investigated in asystem that consists of a cascade three-level atom resonantly interacting with a single-mode field in a Kerr-like medium.The atom and the field are assumed to be initially in the upper atomic state and the Fock state,respectively.Resultsfor models with intensity-dependent coupling and with intensity-independent coupling are compared.It is found thatboth population dynamics and emission spectrum show no indications of atom-field decoupling in the strong field limitif the intensity-dependent coupling is taken into account.展开更多
基金The project supported by the ‘Qing Lan' project of Jiangsu Province of China under Grant No. 2005SL002J
文摘<正> By using the method of eigenvectors,the atomic populations and emission spectrum are investigated in asystem that consists of a cascade three-level atom resonantly interacting with a single-mode field in a Kerr-like medium.The atom and the field are assumed to be initially in the upper atomic state and the Fock state,respectively.Resultsfor models with intensity-dependent coupling and with intensity-independent coupling are compared.It is found thatboth population dynamics and emission spectrum show no indications of atom-field decoupling in the strong field limitif the intensity-dependent coupling is taken into account.