Spontaneous emission between two parallel plates, one or both infinitely permeable

Alves, Danilo T.; Farina, C.; Tort, A. C.

doi:10.1103/physreva.61.034102

Cited by 37 publications

(21 citation statements)

References 19 publications

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“…As was shown in Secs.3.5, 4.5 the presence of cavity walls leads to the modifications of the propagators. If the atom is situated between two mirrors there arise specific modifications in the spontaneous emission rates [312][313][314][315]. The role of Casimir-type retardation effects in the atomic spectra is the subject of extensive study (see, e.g., [316][317][318][319][320] and references therein).…”

Section: Conclusion and Discussionmentioning

confidence: 99%

New developments in the Casimir effect

2001

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We provide a review of both new experimental and theoretical developments in the Casimir effect. The Casimir effect results from the alteration by the boundaries of the zero-point electromagnetic energy. Unique to the Casimir force is its strong dependence on shape, switching from attractive to repulsive as function of the size, geometry and topology of the boundary. Thus the Casimir force is a direct manifestation of the boundary dependence of quantum vacuum. We discuss in depth the general structure of the infinities in the field theory which are removed by a combination of zeta-functional regularization and heat kernel expansion. Different representations for the regularized vacuum energy are given. The Casimir energies and forces in a number of configurations of interest to applications are calculated. We stress the development of the Casimir force for real media including effects of nonzero temperature, finite conductivity of the boundary metal and surface roughness. Also the combined effect of these important factors is investigated in detail on the basis of condensed matter physics and quantum field theory at nonzero temperature. The experiments on measuring the Casimir force are also reviewed, starting first with the older measurements and finishing with a detailed presentation of modern precision experiments. The latter are accurately compared with the theoretical results for real media. At the end of the review we provide the most recent constraints on the corrections to Newtonian gravitational law and other hypothetical long-range interactions at submillimeter range obtained from the Casimir force measurements.

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Section: Conclusion and Discussionmentioning

confidence: 99%

New developments in the Casimir effect

2001

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“…The effect was an attractive force between the plates given by the negative pressure P = −π 2 /240L 4 (we use natural units: = c = 1) [15]. Over the decades, the Casimir effect has been applied to different geometries, fields and physical conditions, enjoying a remarkable popularity [16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33] and raising interest, in particular, in the context of microelectronics [34,35] as a practical tool for switching devices.…”

Section: Introductionmentioning

confidence: 99%

Thermofield dynamics and Casimir effect for fermions

et al. 2005

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A generalization of the Bogoliubov transformation is developed to describe a space compactified fermionic field. The method is the fermionic counterpart of the formalism introduced earlier for bosons (J. C. da Silva, A. Matos Neto, F.C. Khanna and A.E. Santana, Phys. Rev. A 66 (2002) 052101), and is based on the thermofield dynamics approach. We analyze the energy-momentum tensor for the Casimir effect of a free massless fermion field in a d-dimensional box at finite temperature. As a particular case the Casimir energy and pressure for the field confined in a 3-dimensional parallelepiped box are calculated. It is found that the attractive or repulsive nature of the Casimir pressure on opposite faces changes depending on the relative magnitude of the edges. We also determine the temperature at which the Casimir pressure in a cubic box changes sign and estimate its value when the edge of the cube is of the order of the confining lengths for baryons.

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“…Various structures have been investigated with respect to their role in modifying the SE rate: planar dielectric and metallic interfaces [2][3][4][5][6][7][8], spheres [9][10][11][12][13], and dielectric and metallic cylinders [14][15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Spontaneous emission and energy transfer rates near a coated metallic cylinder

2014

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The spontaneous emission and energy transfer rates of quantum systems in proximity to a dielectrically coated metallic cylinder are investigated using a Green's tensor formalism. The excitation of surface plasmon modes can significantly modify these rates. The spontaneous emission and energy transfer rates are investigated as a function of the material and dimensions of the core and coating, as well as the emission wavelength of the donor. For the material of the core we consider gold and silver, whose surface plasmon wavelengths lie in the visible part of the electromagnetic spectrum. The spontaneous emission rate is enhanced by several orders of magnitude when the emission wavelength is close to the surface plasmon wavelength. The energy transfer rate enhancement is found to be concentrated in hot spots around the circumference of the coated cylinder. Introducing the energy transfer efficiency as a parameter, we find that, when the donor emission and acceptor absorption spectra are resonant with the surface plasmon modes excited on the coated cylinder, the energy transfer efficiency can be significantly enhanced compared to the off-resonance situation. Tuning the surface plasmon wavelength to the emission wavelength of the donor via the geometrical and material parameters of the coated cylinder allows, therefore, control of the energy transfer efficiency.

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Spontaneous emission between two parallel plates, one or both infinitely permeable

Cited by 37 publications

References 19 publications

New developments in the Casimir effect

New developments in the Casimir effect

Thermofield dynamics and Casimir effect for fermions

Spontaneous emission and energy transfer rates near a coated metallic cylinder

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