中文
相关论文

相关论文: Casimir Effect for Quantum Graphs

200 篇论文

We obtain the Casimir effect for the massless scalar field in one dimension based on the analogy between the quantum field and the continuum limit of an infinite set of coupled harmonical oscillators.

物理教育 · 物理学 2007-05-23 A. Farkas , N. Nicolaevici

The Casimir effect in a dispersive and absorbing multilayered system is considered adopting the (net) vacuum-field pressure point of view to the Casimir force. Using the properties of the macroscopic field operators appropriate for…

量子物理 · 物理学 2009-11-07 M. S. Tomas

The Casimir effect is a quantum phenomenon induced by the zero-point energy of relativistic fields confined in a finite-size system. This effect for photon fields has been studied for a long time, while the realization of counterparts for…

介观与纳米尺度物理 · 物理学 2023-06-22 Katsumasa Nakayama , Kei Suzuki

We study the transmission of a quantum particle along a straight input--output line to which a graph $\Gamma$ is attached at a point. In the point of contact we impose a singularity represented by a certain properly chosen scale-invariant…

量子物理 · 物理学 2013-03-22 Ondřej Turek , Taksu Cheon

Two thin conducting, electrically neutral, parallel plates forming an isolated system in vacuum exert attracting force on each other, whose origin is the quantum electrodynamical interaction. This theoretical hypothesis, known as Casimir…

高能物理 - 理论 · 物理学 2007-05-23 Andrzej Herdegen

The Casimir-Polder interaction between an atom and a multilayered system composed of infinitely thin planes is considered using the zeta-function regularization approach with summation of the zero-point energies. As a prototype material,…

介观与纳米尺度物理 · 物理学 2016-08-03 Nail Khusnutdinov , Rashid Kashapov , Lilia M. Woods

We investigate the Fermionic Casimir effect at finite temperature for two parallel chain of adatoms in a Graphene sheet, and the corresponding Casimir force is interpreted as an interaction between the adatom chains. We apply useful…

介观与纳米尺度物理 · 物理学 2017-05-16 Y. Koohsarian , A. Shirzad

We compute an analog Casimir effect in a one-dimensional spinless Luttinger liquid confined to a segment in the presence of a nearly-impenetrable partition dividing the segment into two compartments. The Casimir interaction is found to be a…

介观与纳米尺度物理 · 物理学 2014-11-18 Eugene B. Kolomeisky , Joseph P. Straley , Michael Timmins

In this paper, we use the formalism of finite-temperature quantum field theory to investigate the Casimir force between flat, ideally conductive surfaces containing confined, but mobile ions. We demonstrate that, in the Gaussian…

量子物理 · 物理学 2025-04-24 Yu. A. Budkov , P. E. Brandyshev

We study the Casimir problem as the limit of a conventional quantum field theory coupled to a smooth background. The Casimir energy diverges in the limit that the background forces the field to vanish on a surface. We show that this…

高能物理 - 理论 · 物理学 2008-11-26 N. Graham , R. L. Jaffe , V. Khemani , M. Quandt , M. Scandurra , H. Weigel

The contribution of elliptic fixed points to the scalar Casimir energy on compact quotients of the upper half hyperbolic plane is computed for a propagation operator conformal in three dimensions. The expression involves derivatives of…

谱理论 · 数学 2023-12-08 J. S. Dowker

The Casimir energy for a massless, neutral scalar field in presence of a point interaction is analyzed using a general zeta-regularization approach developed in earlier works. In addition to a regular bulk contribution, there arises an…

数学物理 · 物理学 2020-08-10 Davide Fermi

In this paper, we study the Casimir effect in the classical geometry of two parallel conducting plates, separated by a distance $L$, due to the presence of a minimal length $\lambda$ arising from a background independent (polymer)…

高能物理 - 唯象学 · 物理学 2020-02-26 C. A. Escobar , E. Chan-López , A. Martín-Ruiz

For a long time, the study of thermal effects at three-dimensional (3D) short-ranged wetting transitions considered only the effect of interfacial fluctuations. We show that an entropic Casimir contribution, missed in previous treatments,…

统计力学 · 物理学 2024-12-23 Alessio Squarcini , José M. Romero-Enrique , Andrew O. Parry

The Casimir effect arises not only in the presence of material boundaries but also in space with nontrivial topology. In this paper, we choose a topology of the flat $(D+1)$-dimensional spacetime, which causes the helix boundary condition…

高能物理 - 理论 · 物理学 2010-12-13 Chao-Jun Feng , Xin-Zhou Li

We address the spatially nonlocal dielectric functions of graphene at any frequency derived starting fromthe first principles of thermal quantum field theory using the formalism of the polarization tensor. After a brief review of this…

介观与纳米尺度物理 · 物理学 2026-02-19 V. M. Mostepanenko , G. L. Klimchitskaya

The energy momentum tensor is used to introduce the Casimir force of the massive scalar field acting on a nonpenetrating surface. This expression can be used to evaluate the vacuum force by employing the appropriate field operators. To…

量子物理 · 物理学 2014-06-05 Sonia Mobassem

Casimir effect in the planar setting is described using the boundary state formalism, for general partially reflecting boundaries. It is expressed in terms of the low-energy degrees of freedom, which provides a large distance expansion…

高能物理 - 理论 · 物理学 2008-11-26 Z. Bajnok , L. Palla , G. Takacs

We propose that the dynamic Casimir effect is a mechanism that converts the energy of neutron starquakes into $\gamma$--rays. This mechanism efficiently produces photons from electromagnetic Casimir energy released by the rapid motion of a…

天体物理学 · 物理学 2007-05-23 C. Carlson , T. Goldman , J. Perez-Mercader

The Casimir effect for a massless scalar field on the helix boundary condition which is named as quantum spring is studied in our recent paper\cite{Feng}. In this paper, the Casimir effect of the quantum spring is investigated in…

高能物理 - 理论 · 物理学 2011-04-08 Xiang-hua Zhai , Xin-zhou Li , Chao-Jun Feng