Emission spectrum of two atoms interacting with two modes of the cavity field with different coupling constants through a multiphoton Raman process

The emission spectrum of a single atom inside an optomechanical cavity is studied in this paper. Our model consists of a single two-level atom coupled to a cavity with a moving end mirror. We numerically calculate the emission spectrum of the atom, taking the effect of the moving mirror into account. The dependence of the spectrum peak on the coupling between the moving mirror and the cavity field is analyzed. For weak cavity-mirror couplings, we expand the spectrum up to the first order of the coupling constant.

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DYNAMICS AND NONCLASSICAL PHOTON STATISTICS IN THE INTERACTION OF TWO-LEVEL SPIN SYSTEMS WITH A TWO-MODE CAVITY FIELD: A GENERALIZED JAYNES-CUMMINGS MODEL

International Journal of Modern Physics B ◽

10.1142/s0217979208038867 ◽

2008 ◽

Vol 22 (06) ◽

pp. 599-633 ◽

Cited By ~ 3

Author(s):

HORACIO GRINBERG

Keyword(s):

Time Evolution ◽

Spin System ◽

Evolution Operator ◽

Photon Number ◽

Perturbation Expansion ◽

Coupling Constants ◽

Operator Matrix ◽

Cavity Field ◽

Photon Distribution ◽

Time Evolution Operator

The interaction of a two-level XYn-spin system with a two-mode cavity field is investigated through a generalized Jaynes-Cummings model in the rotating wave approximation. The spontaneous decay of a spin level was treated by considering the interaction of the two-level spin system with the modes of the universe in the vacuum state. The different cases of interest, characterized in terms of a detuning parameter for each mode, which emerge from the nonvanishing of certain commutation relations between interaction picture Hamiltonians associated with each mode, were analytically implemented and numerically discussed for various values of the initial mean photon number and spin-photon coupling constants. Photon distribution, time evolution of the spin population inversion, as well as the statistical properties of the field leading to the possible production of nonclassical states, such as antibunched light and violations of the Cauchy-Schwartz inequality are examined for an excited initial state. It was assumed that the two modes are initially in coherent states and have the same photon distribution. The case of zero detuning of both modes was treated in terms of a linearization of the expansion of the time evolution operator, while in other three cases, the computations were conducted via second- and third-order Dyson perturbation expansion of the time evolution operator matrix elements for the excited and ground states respectively.

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CAVITY FIELD SPECTRA OF AN ATOM INTERACTING WITH TWO-MODE FIELD THROUGH RAMAN PROCESS

Acta Physica Sinica ◽

10.7498/aps.50.1496 ◽

2001 ◽

Vol 50 (8) ◽

pp. 1496

Author(s):

GAO YUN-FENG ◽

FENG JIAN ◽

SHI SHU-REN

Keyword(s):

Cavity Field ◽

Mode Field ◽

Raman Process

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Spectrum of a microcavity with single quantum nonlinearity

Canadian Journal of Physics ◽

10.1139/cjp-2013-0094 ◽

2013 ◽

Vol 91 (8) ◽

pp. 645-649

Author(s):

Xiaoyong Guo ◽

Liqun An ◽

Xiaobin Ren ◽

Zhongzhou Ren

Keyword(s):

Emission Spectrum ◽

Nonlinear Effect ◽

Physical System ◽

Emission Intensity ◽

Critical Level ◽

Single Mode ◽

Matter Field ◽

Single Quantum ◽

Cavity Field ◽

Single Mode Cavity

In this paper, we investigate the emission spectrum of a nonlinear microcavity at the level of individual quantum. The physical system consists of one coherently pumped microcavity in which a self-interacting bosonic matter field strongly couples with the cavity field. By the master equation treatment, we obtain an analytical expression for the emission spectrum of the cavity. It is found that when the strength of the bosonic nonlinear effect is greater than a critical level, the spectrum of the single-mode cavity field is divided into doublet peaks. Furthermore, we also study the influence of the detuning between cavity field and matter field on the emission property. We show that the emission intensity is enhanced by negative detuning and suppressed by positive detuning.

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Cavity field spectra of two different atoms interacting with a Two-mode field through Raman process

Acta Physica Sinica ◽

10.7498/aps.53.3739 ◽

2004 ◽

Vol 53 (11) ◽

pp. 3739

Author(s):

Zhang Gui-Ming ◽

Li Yue-Ke ◽

Gao Yun-Feng

Keyword(s):

Cavity Field ◽

Mode Field ◽

Raman Process

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A STUDY OF THE INTERACTION BETWEEN A FIVE-LEVEL ATOM AND A SINGLE-MODE CAVITY FIELD: FAN-TYPE

Modern Physics Letters B ◽

10.1142/s0217984911027303 ◽

2011 ◽

Vol 25 (24) ◽

pp. 1971-1982 ◽

Cited By ~ 2

Author(s):

N. H. ABDEL-WAHAB

Keyword(s):

Dynamical Behavior ◽

Single Mode ◽

Kerr Nonlinearity ◽

Coupling Constants ◽

Kerr Medium ◽

Cavity Field ◽

Atomic Inversion ◽

Input Field ◽

Level Atom ◽

Single Mode Cavity

In this paper, a model describing the interaction of a five-level (85 Rb ) atom with one-mode cavity field including Kerr nonlinearity is discussed. Analytical solution for this model is presented when the atom is initially prepared in its upper state. The obtained results are then employed to examine the dynamical behavior of atomic inversion, field statistics and field squeezing when the input field is initially considered in a coherent state. It is found that the atom-field properties are influenced by the changing of the coupling constants, the detuning parameters and the Kerr medium.

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ENTANGLEMENT OF A SINGLE-MODE CAVITY QED OF A RAMAN INTERACTION

International Journal of Quantum Information ◽

10.1142/s0219749907002554 ◽

2007 ◽

Vol 05 (01n02) ◽

pp. 105-110 ◽

Cited By ~ 1

Author(s):

M. ABDEL-ATY ◽

F. AL-SHOWAIKH ◽

S. S. HASSAN

Keyword(s):

Cavity Qed ◽

Energy Levels ◽

Single Mode ◽

Entanglement Measure ◽

Cavity Field ◽

System Parameters ◽

Raman Process ◽

Raman Interaction ◽

Single Mode Cavity

We investigate the entanglement of a degenerate Raman process involving two degenerate Rydberg energy levels of an atom interacting with a single-mode cavity field. We use the concurrence as an entanglement measure and show that long living entanglement can be obtained for certain choices of the system parameters.

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Models of Thermodynamic Properties of Prominences

International Astronomical Union Colloquium ◽

10.1017/s0252921100065799 ◽

1979 ◽

Vol 44 ◽

pp. 349-355

Author(s):

R.W. Milkey

Keyword(s):

Thermodynamic Properties ◽

Mass Transport ◽

Emission Spectrum ◽

Thermodynamic Parameters ◽

Working Group ◽

Physical Processes ◽

Theoretical Concepts ◽

Group 3 ◽

Observational Techniques

The focus of discussion in Working Group 3 was on the Thermodynamic Properties as determined spectroscopically, including the observational techniques and the theoretical modeling of physical processes responsible for the emission spectrum. Recent advances in observational techniques and theoretical concepts make this discussion particularly timely. It is wise to remember that the determination of thermodynamic parameters is not an end in itself and that these are interesting chiefly for what they can tell us about the energetics and mass transport in prominences.

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