Articles with "casimir" as a keyword



Superconformal blocks: general theory

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Published in 2020 at "Journal of High Energy Physics"

DOI: 10.1007/jhep01(2020)159

Abstract: In this work we launch a systematic theory of superconformal blocks for four­point functions of arbitrary supermultiplets. Our results apply to a large class of superconformal field theories including 4-dimensional models with any number N… read more here.

Keywords: blocks general; theory; general theory; superconformal blocks ... See more keywords
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Scaling Planck's law: a unified approach to the Casimir effect and radiative heat-conductance in nanogaps.

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Published in 2022 at "Nanoscale horizons"

DOI: 10.1039/d1nh00496d

Abstract: Using Planck's law from an innovative point of view brings about the possibility to understand the common origin of the repulsive Casimir thermal pressure and the heat exchange in nanogaps. Based on a scale transformation,… read more here.

Keywords: casimir; heat conductance; law; planck law ... See more keywords
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Sensitivity on materials optical properties of single beam torsional Casimir actuation

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Published in 2017 at "Journal of Applied Physics"

DOI: 10.1063/1.4982762

Abstract: Here, we investigate the dynamical sensitivity of electrostatic torsional type microelectromechanical systems (MEMS) on the optical properties of interacting materials. This is accomplished by considering the combined effect of mechanical Casimir and electrostatic torques to… read more here.

Keywords: optical properties; casimir; sensitivity; beam torsional ... See more keywords
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Dependence of non-equilibrium Casimir forces on material optical properties toward chaotic motion during device actuation.

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Published in 2019 at "Chaos"

DOI: 10.1063/1.5124308

Abstract: The sensitivity of nonequilibrium Casimir forces on material optical properties can have strong impact on the actuation of devices. For this purpose, we considered nonequilibrium Casimir interactions between good and poor conductors, for example, gold… read more here.

Keywords: casimir; optical properties; nonequilibrium casimir; material optical ... See more keywords
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Sensitivity of actuation dynamics on normal and lateral Casimir forces: Interaction of phase change and topological insulator materials.

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Published in 2021 at "Chaos"

DOI: 10.1063/5.0065033

Abstract: We investigated here the influence of the lateral and normal Casimir force on the actuation dynamics between sinusoidal corrugated surfaces undergoing both normal and lateral displacements. The calculations were performed for topological insulators and phase… read more here.

Keywords: motion; phase change; casimir; normal lateral ... See more keywords
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Enhancement of lateral Casimir force on a rotating particle near hyperbolic metamaterial

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Published in 2022 at "Nanotechnology"

DOI: 10.1088/1361-6528/ac59e6

Abstract: Enhancement of weak Casimir forces is extremely important for their practical detection and subsequent applications in variety of scientific and technological fields. We study the lateral Casimir forces acting on the rotating particles with small… read more here.

Keywords: casimir; lateral casimir; particle near; hyperbolic metamaterial ... See more keywords
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Numeric corrections to the proximity-force approximation for lateral Casimir forces

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Published in 2019 at "Physica Scripta"

DOI: 10.1088/1402-4896/aaf279

Abstract: The widely-adopted proximity-force approximation (PFA) to estimate normal Casimir forces is known to be asymptotically exact at vanishing separations. In this letter, we propose a correction to the PFA, which is sufficiently accurate in predicting… read more here.

Keywords: casimir; lateral casimir; proximity force; force approximation ... See more keywords
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Nonequilibrium effects in the Casimir force between two similar metallic plates kept at different temperatures

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Published in 2020 at "Physical Review A"

DOI: 10.1103/physreva.101.032506

Abstract: We study the Casimir pressure between two similar plates of finite thickness kept at different temperatures in the case when the dielectric permittivity of the plates depends on temperature. It is suggested to consider the… read more here.

Keywords: two similar; kept different; nonequilibrium; pressure ... See more keywords
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Casimir and Casimir-Polder forces with dissipation from first principles

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Published in 2017 at "Physical Review A"

DOI: 10.1103/physreva.96.062504

Abstract: We consider Casimir-Polder and Casimir forces with finite dissipation by coupling heat baths to the dipoles introducing, this way, dissipation from 'first principles'. We derive a representation of the free energy as an integral over… read more here.

Keywords: casimir casimir; dissipation first; casimir; dissipation ... See more keywords
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Gluing Formula for Casimir Energies

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Published in 2018 at "Symmetry"

DOI: 10.3390/proceedings2010024

Abstract: We provide a completely new perspective for the analysis of Casimir forces in very general piston configurations. To this end, in order to be self-contained, we prove a “gluing formula” well known in mathematics and… read more here.

Keywords: piston configurations; formula casimir; casimir; gluing formula ... See more keywords
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Unifying Theory for Casimir Forces: Bulk and Surface Formulations

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Published in 2021 at "Universe"

DOI: 10.3390/universe7070225

Abstract: The principles of the electromagnetic fluctuation-induced phenomena such as Casimir forces are well understood. However, recent experimental advances require universal and efficient methods to compute these forces. While several approaches have been proposed in the… read more here.

Keywords: casimir; surface; casimir forces; free energy ... See more keywords