Science and technology of the Casimir effect

Stange, Alexander; Campbell, David; Bishop, David J.

doi:10.1063/pt.3.4656

Cited by 22 publications

(13 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This suggests the presence of something, a state of empty-fullness that Aristotle called the plenum. The most commonly cited example in support of the fullness of the quantum vacuum and zero-energy state is the Casimir effect [21,22]. Two uncharged conductive plates are placed in a vacuum in nanometer proximity to each other.…”

Section: Quantum Vacuum and Aethermentioning

confidence: 99%

Aether, fields & energy dynamics in living bodies - Part I

Thorp¹,

Thorp²

2021

G Med Sci

View full text Add to dashboard Cite

At the turn of the 20th century medicine and physics seemed to be heading in two opposing if not mutually exclusive directions: medical science had asserted the primacy of the cell and had set out to integrate known chemical principles into cellular functioning; physics, on the other hand, had broken through the barriers of classical Newtonian mechanical laws and established the energetic basis of all physical substance. Something was bound to give.

show abstract

Section: Quantum Vacuum and Aethermentioning

confidence: 99%

Aether, fields & energy dynamics in living bodies - Part I

Thorp¹,

Thorp²

2021

G Med Sci

View full text Add to dashboard Cite

show abstract

“…Fourier transforming (27) and (28), both in time and space, one can relate the current density j(ω, k) = en 0 v(ω, k) to the electric field E(ω, k), thus obtaining the conductivity tensor and, ultimately the dielectric function where at the last stage the lattice contribution ε L (ω) has been added. 29) is the Debye screening radius.…”

Section: Drude Model With Spatial Dispersionmentioning

confidence: 99%

A critical discussion of different methods and models in Casimir effect

Brevik¹,

Shapiro²

2022

J. Phys. Commun.

View full text Add to dashboard Cite

The Casimir-Lifshitz force acts between neutral material bodies and is due to the fluctuations (around zero) of the electrical polarizations of the bodies. This force is a macroscopic manifestation of the van der Waals forces between atoms and molecules. In addition to being of fundamental interest, the Casimir-Lifshitz force plays an important role in surface physics, nanotechnology and biophysics. There are two different approaches in the theory of this force. One is centered on the fluctuations inside the bodies, as the source of the fluctuational electromagnetic fields and forces. The second approach is based on finding the eigenmodes of the field, while the material bodies are assumed to be passive and non-fluctuating. In spite of the fact that both approaches have a long history, there are still some misconceptions in the literature. In particular, there are claims that (hypothetical) materials with a strictly real dielectric function $\varepsilon(\omega)$ can give rise to fluctuational Casimir-Lifshitz forces. We review and compare the two approaches, using the simple example of the force in the absence of retardation. We point out that also in the second (the "field-oriented") approach one cannot avoid introducing an infinitesimal imaginary part into the dielectric function, i.e. introducing some dissipation. Furthermore, we emphasize that the requirement of analyticity of $ \varepsilon(\omega)$ in the upper half of the complex $\omega$ plane is not the only one for a viable dielectric function. There are other requirements as well. In particular, models that use a strictly real $\varepsilon(\omega)$ (for all real positive $\omega)$ are inadmissible and lead to various contradictions and inconsistencies. Specifically, we present a critical discussion of the "dissipation-less plasma model". Our emphasis is not on the most recent developments in the field but on some conceptual, not fully resolved issues.

show abstract

“…Devices in which forces between mechanical components are exchanged via the mediation of vacuum fluctuations could find application in those research fields where high sensitivity is required, such as in the search for gravitational waves [12] and dark matter [13]. They could be used in quantum metrology and quantum sensing [14] and, in the near future, could serve as actuators of nanoscale motion, for manipulating objects as small as nanowires, quantum dots, or even living organisms such as viruses and bacteria in biological applications [15]. Recent proposals have also shown that nanometric system could be used to realize mechanically based quantum bit [16] for quantum information and quantum computing.…”

Section: Introductionmentioning

confidence: 99%

Influence functional for two mirrors interacting via radiation pressure

Butera

2022

Phys. Rev. D

View full text Add to dashboard Cite

We study the effective dynamics of two mirrors, forming an optical cavity, and interacting with the cavity field via radiation pressure. We pursue a perturbative influence functional approach to trace out the degrees-of-freedom of the field, and obtain the second order effective action for the system composed by the mirrors. We find that the interaction between the mirrors is mediated by pairs of field modes, which combine in such a way to give rise to two different interaction channels. We find that the quantum and thermal fluctuations of the cavity field result in coloured, Gaussian stochastic noises acting on the mirrors. To each of these noises is associated a dissipative effect, and the corresponding power spectra and susceptibilities are related via generalized fluctuationdissipation relations. We finally demonstrate that the dynamics of the mirrors admits a stochastic interpretation, and give the relative quantum Langevin equations.

show abstract

Science and technology of the Casimir effect

Abstract: Caused by simple fluctuations in space, the Casimir effect may validate theories of the cosmological constant and allow for measurements of ultrasmall magnetic fields.

Cited by 22 publications

References 24 publications

Aether, fields & energy dynamics in living bodies - Part I

Aether, fields & energy dynamics in living bodies - Part I

A critical discussion of different methods and models in Casimir effect

Influence functional for two mirrors interacting via radiation pressure

Contact Info

Product

Resources

About