scholarly journals Electroweak vacuum instability and renormalized vacuum field fluctuations in Friedmann-Lemaitre-Robertson-Walker background

2018 ◽  
Vol 98 (10) ◽  
Author(s):  
Kazunori Kohri ◽  
Hiroki Matsui
Keyword(s):  
Vacuum Field ◽  
Vacuum Instability ◽  
Field Fluctuations

Casimir forces and vacuum energy

2017 ◽  
Author(s):  
Serge Reynaud ◽  
Astrid Lambrecht
Keyword(s):  
Casimir Force ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Thermal Fluctuations ◽  
Model Systems ◽  
Vacuum Field ◽  
Force Measurements ◽  
Casimir Forces ◽  
Current State ◽  
Field Fluctuations

The Casimir force is an effect of quantum vacuum field fluctuations, with applications in many domains of physics. The ideal expression obtained by Casimir, valid for perfect plane mirrors at zero temperature, has to be modified to take into account the effects of the optical properties of mirrors, thermal fluctuations, and geometry. After a general introduction to the Casimir force and a description of the current state of the art for Casimir force measurements and their comparison with theory, this chapter presents pedagogical treatments of the main features of the theory of Casimir forces for one-dimensional model systems and for mirrors in three-dimensional space.

Interaction Hamiltonian and Spontaneous Emission

2019 ◽  
pp. 205-268
Author(s):  
Peter W. Milonni
Keyword(s):  
Field Theory ◽  
Spontaneous Emission ◽  
Electric Dipole ◽  
Radiation Reaction ◽  
Vacuum Field ◽  
Coupling Interaction ◽  
Fluctuation Dissipation ◽  
Level Shifts ◽  
Field Fluctuations ◽  
Quantized Field

The atom-field interaction is formulated within the fully quantized-field theory, starting from a detailed analysis of the transformation from the fundamental minimal coupling interaction Hamiltonian to the electric dipole Hamiltonian used extensively in quantum optics. Spontaneous emission, radiative level shifts, and the natural radiative lineshape are treated in both the Schrodinger and Heisenberg pictures, with emphasis on the roles of vacuum field fluctuations, radiation reaction, and the fluctuation-dissipation relation between them. The shortcomings of semiclassical radiation theories are discussed.

Vacuum field fluctuations and spontaneous emission in a dielectric slab

1992 ◽  
Vol 436 (1897) ◽  
pp. 373-389 ◽  
Keyword(s):  
Spontaneous Emission ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Field Operator ◽  
Vacuum Field ◽  
Emission Rates ◽  
Dielectric Slab ◽  
Spatial Modes ◽  
Field Fluctuations ◽  
Complete Set

The electromagnetic field is quantized on the basis of the complete set of spatial modes of a plane dielectric slab of arbitrary thickness and refractive index but infinite transverse dimensions, located in otherwise empty three-dimensional space. The vacuum field fluctuations and spontaneous emission rates are evaluated as functions of position both inside and outside the slab. The source-field operator is derived for emission by atoms inside the slab, in the direction perpendicular to its surfaces. Particular attention is given to the possibility of suppressing spontaneous emission by placing atoms in, or close to, a dielectric slab.

Vacuum field fluctuations and spontaneous emission in the vicinity of a dielectric surface

1991 ◽  
Vol 433 (1888) ◽  
pp. 337-352 ◽  
Keyword(s):  
Spontaneous Emission ◽  
Field Operator ◽  
Dielectric Surface ◽  
The Other ◽  
Vacuum Field ◽  
Emission Rates ◽  
Spatial Modes ◽  
Field Fluctuations ◽  
System Geometry ◽  
Constant Refractive Index

The electromagnetic field is quantized on the basis of the classical spatial modes of a system geometry in which half of space is filled by a dielectric of constant refractive index and the other half of space is empty. The vacuum field fluctuations and spontaneous emission rates are evaluated as functions of position and polarization both inside and outside the dielectric. Particular attention is given to the variations of these quantities in the vicinity of the interface. The source-field operator is derived for emission by atoms inside and outside the dielectric, in the direction perpendicular to the interface.

Terahertz quantum optics in the time-domain: from field correlation measurements on vacuum field fluctuations in free space towards cavity electro-optics

2020 ◽  
Author(s):  
Ileana-Cristina Benea-Chelmus ◽  
Francesca Fabiana Settembrini ◽  
Yannick Salamin ◽  
Yuriy Fedoryshyn ◽  
Wolfgang Heni ◽  
...  
Keyword(s):  
Quantum Optics ◽  
Time Domain ◽  
Free Space ◽  
Vacuum Field ◽  
Field Fluctuations ◽  
The Time Domain ◽  
Field Correlation

scholarly journals Effect of boundaries on vacuum field fluctuations and radiation-mediated interactions between atoms

2017 ◽  
Vol 880 ◽  
pp. 012064 ◽  
Author(s):  
F Armata ◽  
S Butera ◽  
G Fiscelli ◽  
R Incardone ◽  
V Notararigo ◽  
...  
Keyword(s):  
Vacuum Field ◽  
Field Fluctuations

QED Based on Self-Fields: A Relativistic Calculation of g-2

1989 ◽  
Vol 44 (11) ◽  
pp. 1051-1056 ◽  
Author(s):  
A. O. Barut ◽  
Jonathan P. Dowling
Keyword(s):  
Quantum Electrodynamics ◽  
The Self ◽  
Vacuum Field ◽  
Classical Electrodynamics ◽  
Back Reaction ◽  
Vacuum Fluctuations ◽  
Physical Origin ◽  
Radiative Processes ◽  
Relativistic Calculation ◽  
Field Fluctuations

A recently advanced theory of quantum electrodynamics which is not second quantized, but rather based on self-fields is adopted to a relativistic calculation of (g-2). In analogy to classical electrodynamics, radiative corrections are seen as arising from the back reaction of the self-field upon the source. Vacuum field fluctuations, assumed to be the physical cause of radiative correction in standard QED. are absent in the present self-field approach, which recently has been applied to calculate spontaneous emission, Lamb shift, vacuum polarization, and to a non-relativistic calculation of (g-2), all in free space as well as in cavities. We conclude that the self-field of the electron can be consistently considered to be the physical origin of all radiative processes, as an alternative picture to hypothetical vacuum fluctuations

Nonlinear Optics in Confined Structures for a Better Understanding of Vacuum Field Fluctuations

2009 ◽  
Author(s):  
Jean Desforges ◽  
Tahar Ben-Messaoud ◽  
Martin Leblanc ◽  
Serge Gauvin ◽  
M. R. Singh ◽  
...  
Keyword(s):  
Nonlinear Optics ◽  
Vacuum Field ◽  
Field Fluctuations ◽  
Confined Structures
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