We present a scheme to generate a maximally entangled state of two separate cavity modes, by using the resonant interaction of a three-level atom and two separate cavity modes, using classical field and selecting the interaction time.
By analyzing and comparing the one-photon and two-photon processes occurring for various cases, it is found that for a squeezed vacuum, only when the carrier frequency of the squeezed vacuum equals the frequency of the driving field and the phase matching condition is fulfilled, will there be a strong two-photon resonant absorption from the squeezed vacuum (quite different from absorption of photons from a classical field).
The thesis uses extension classified prediction, principal components analysis, and R type cluster analysis methods, confirms environment index which affects sales of tobacco, and makes some attempt on selecting reasonable representation format of index shape and confirming values of classical field and partial field by mathematical statistics, and completes index selection blanks of influencing economical environment.
The grade of individual credit and the index for evaluating the level of individual credit are made as matter-element,meanwhile,the classical field,the segment field,the weight coefficient are obtained.
By using extensics theory and method,the classical field matter-elements and segment field matter-elements are put forward on the basis of transformation of extensive set and analysis of correlation function,and matter-element extension model of expansive soils' expansive scale is established.
Although the dynamics of nondegenerate cascade two-photon laser was studied in the absence of atomic coherences and injected classical field, the dynamics of the system in the presence of atomic coherences and classical field has not been studied so far.
The results show that stable state and quasi-periodic attractor exist in effective two-photon lasers, and the time-delayed feedback can induce chaotic states in the presence of the injected classical field.
In this paper, the model which consists of homogeneous broadened three atomic level is proposed, when both the pump classical field and laser field exist we discuss the gain, frequency pulling and threshold condition of the weak pumping.
A quasi-energy operator in the Jaynes-Cummings model in a polychromatic classical field
Such a Hamiltonian has a singularity in the dimensionless amplitude σ of a classical field.
A classical field system is considered that consists of two interacting scalar fields, the Higgs real field and a complex scalar field.
Two-photon Jaynes-Cummings systems interacting with a classical field
If a two-level atom is in the two-photon resonance with a quantized mode and simultaneously inter-acts with a quasi-resonance classical field, then a photon exchange is observed in this system between the quantized and classical modes.
We shall show that Continuous symmetry transformatins in Mechanics Quantum Mechanics, Classical field theory and Quantum field theory, Which Leave the equation of motion invariant, will generate Conservation Laws without use Noether theorem of Lagrangian formalism. In the non-Abelian gauge theory, Synchrononous Symmetry Invariant perhaps yields a Conservative angular momentum of the field, The Spin and isopin both Contribute to angular momentun.
In this paper, the model which consists of homogeneous broadened three atomic level is proposed, when both the pump classical field and laser field exist we discuss the gain, frequency pulling and threshold condition of the weak pumping. We also discuss the effect of the coherent pumping on the laser line width. The results are compared with what derived for non-coherent pumping and no-pumping.
Photoionization spectra of Ca and Sr atoms above the classical field-ionization threshold are observed by using two-photon excitation method. The relation between the resonances and the applied electric field as well as polarization, of laser beam are discussed.