Cavity quantum electrodynamics inside a hollow spherical cavity

Jhe, W.; Jang, Kwangchul

doi:10.1103/physreva.53.1126

Cited by 31 publications

(12 citation statements)

References 14 publications

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“…However, such an approach is also intricate due to nonlinear effects. A way to circumvent these problems is to assume that under certain conditions the coupled atom-electromagnetic field system may be approximated by a system composed of a harmonic oscillator coupled linearly to the field modes through an effective coupling constant g. This is the case for linear response theory in QED, where the electric dipole interaction gives the leading contribution to the radiation process [16,17]. Simplified theoretical models can be used to describe atoms in cavities, with the expectation that it will fit the experimental results [1].…”

Section: Introductionmentioning

confidence: 99%

Thermal effects on the stability of excited atoms in cavities

Khanna

Malbouisson

et al. 2010

Phys. Rev. A

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An atom, coupled linearly to an environment, is considered in a harmonic approximation in thermal equilibrium inside a cavity. The environment is modeled by an infinite set of harmonic oscillators. We employ the notion of dressed states to investigate the time evolution of the atom initially in the first excited level. In a very large cavity (free space) for a long elapsed time, the atom decays and the value of its occupation number is the physically expected one at a given temperature. For a small cavity the excited atom never completely decays and the stability rate depends on temperature.

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Section: Introductionmentioning

confidence: 99%

Thermal effects on the stability of excited atoms in cavities

Khanna

Malbouisson

et al. 2010

Phys. Rev. A

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“…(27)] and that analogous results hold for the real parts of the first two terms in Eq. (28). Therefore, from Eq.…”

Section: B Cavitymentioning

confidence: 92%

“…It should also be noted that owing to the existence of high-Q resonances and, accordingly, great ability of enhancing optical processes [25], dielectric microspheres are very attractive objects for cavity QED studies. Thus, modification of the decay rate and the radiation intensity of an excited molecule (atom) in, or near, a (lossless) microsphere has been theoretically considered in both the weak [26,27,28,29,8] and the strong [30,8] molecule-field coupling limit, and experimental observations of modified fluorescence intensity have also been reported [31,32].…”

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confidence: 99%

Local-field corrections to the decay rate of excited molecules in absorbing cavities: The Onsager model

Tomaš

2001

Phys. Rev. A

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The decay rate and the classical radiation power of an excited molecule (atom) located in the center of a dispersive and absorbing dielectric sphere taken as a simple model of a cavity are calculated adopting the Onsager model for the local field. The local-field correction factor to the external (radiation and absorption) power loss of the molecule is found to be |3ε(ω)/[3ε(ω) + 1]| 2 , with ε(ω) being the dielectric function of the sphere. However, local-field corrections to the total decay rate (power loss) of the molecule are found to be much more complex, including those to the decay rate in the infinite cavity medium, as derived very recently by Scheel et al. [Rev. A 60, 4094 (1999)], and similiar corrections to the cavity-induced decay rate. The results obtained can be cast into model-independent forms. This suggests the general results for the local-field corrections to the decay rate and to the external power loss of a molecule in an absorbing cavity valid for molecule positions away from the cavity walls.

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“…[6,7,8]. The non-retarded van der Waals potential for an atom inside and outside a metallic bubble was considered in Ref.…”

Section: Introductionmentioning

confidence: 99%

The thermal Casimir–Polder interaction of an atom with a spherical plasma shell

Khusnutdinov¹

2012

J. Phys. A: Math. Theor.

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Abstract. The van der Waals and Casimir-Polder interaction energy of an atom with an infinitely thin sphere with finite conductivity is investigated in the framework of the hydrodynamic approach at finite temperature. This configuration models the real interaction of an atom with fullerene. The Lifshitz approach is used to find the free energy. We find the explicit expression for the free energy and perform the analysis of it for i) high and low temperatures, ii) large radii of sphere and ii) short separation between an atom and sphere. At low temperatures the thermal part of the free energy approaches zero as forth power of the temperature while for high temperatures it is proportional to the first degree of the temperature. The entropy of this system is positive for small radii of sphere and it becomes negative at low temperatures and for large radii of the sphere.

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Cavity quantum electrodynamics inside a hollow spherical cavity

Cited by 31 publications

References 14 publications

Thermal effects on the stability of excited atoms in cavities

Thermal effects on the stability of excited atoms in cavities

Local-field corrections to the decay rate of excited molecules in absorbing cavities: The Onsager model

The thermal Casimir–Polder interaction of an atom with a spherical plasma shell

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