Dispersion Forces I

Buhmann, Stefan Yoshi

doi:10.1007/978-3-642-32484-0

Cited by 178 publications

(246 citation statements)

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“…The Green's tensor of the perfectly reflecting chiral plate is known, and it depends only in the distance d between the molecule and the mirror [15,29]:…”

Section: Chiral Molecule In Front a Perfect Mirrormentioning

confidence: 99%

Dynamical Casimir-Polder interaction between a chiral molecule and a surface

Barcellona¹,

Passante²,

Rizzuto³

et al. 2016

Phys. Rev. A

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We develop a dynamical approach to study the Casimir-Polder force between a initially bare molecule and a magnetodielectric body at finite temperature. Switching on the interaction between the molecule and the field at a particular time, we study the resulting temporal evolution of the Casimir-Polder interaction. The dynamical self-dressing of the molecule and its population-induced dynamics are accounted for and discussed. In particular, we find that the Casimir-Polder force between a chiral molecule and a perfect mirror oscillates in time with a frequency related to the molecular transition frequency, and converges to the static result for large times.

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“…The Green's tensor of the perfectly reflecting chiral plate is known, and it depends only in the distance d between the molecule and the mirror [15,29]:…”

Section: Chiral Molecule In Front a Perfect Mirrormentioning

confidence: 99%

Dynamical Casimir-Polder interaction between a chiral molecule and a surface

Barcellona¹,

Passante²,

Rizzuto³

et al. 2016

Phys. Rev. A

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“…The tensors G e are mode-tensors that depend on the imaginary parts of the electric permittivity of the absorbing medium: and on the classical Green tensor of the Helmholtz equation G w ¢ ( ) r r , , [9,10]:…”

Section: Coulomb Interaction In the Presence Of Dielectricsmentioning

confidence: 99%

“…Calculating the residue at ω=0, the energy shift reads: where we have defined the static Green tensor The last equality follows from the fact that for zero frequency the Green's tensor is purely longitudinal [9]. The energy shift (22) consists of two parts.…”

Section: Energy Shiftmentioning

confidence: 99%

“…This leads to an environment-dependent Coulomb force, which is the subject of this work. We will write the Coulomb force in terms of a version of the dyadic Green's function, well-known from the formalism known as macroscopic QED [9,11]. The special case of bulk media will, as we shall see, reproduce the screening effects discussed above, but the unified formalism we use is much more general.…”

Section: Introductionmentioning

confidence: 99%

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Manipulating the Coulomb interaction: a Green's function perspective

2018

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We present a unified framework for studying Coulomb interactions in arbitrary environments using macroscopic quantum electrodynamics on the basis of the electromagnetic Green's function. Our theory can be used to derive the Coulomb potential of a single charged particle as well as that between two charges in the presence of media, bodies and interfaces of arbitrary shapes. To demonstrate this, we reproduce the well-known screened Coulomb force, account for local-field effects and consider new cases such as a multi-layer medium, a dielectric cavity, a conducting wire and a plate with a hole.

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“…Dispersion forces are analogous interactions between neutral microscopic polarizable objects, such as atoms, molecules, condensates or nanoparticles, and described in terms of exchange of virtual photons between them or in terms of vacuum fluctuations [3][4][5][6]. Dispersion forces (van der Waals, including the Casimir-Polder regime) are not additive [7][8][9][10][11][12][13], and many-body effects may become relevant for dense systems [14,15].…”

Section: Introductionmentioning

confidence: 99%

A microscopic approach to Casimir and Casimir–Polder forces between metallic bodies

Barcellona

Passante

2015

Annals of Physics

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a b s t r a c tWe consider the Casimir-Polder interaction energy between a metallic nanoparticle and a metallic plate, as well as the Casimir interaction energy between two macroscopic metal plates, in terms of the many-body dispersion interactions between their constituents. Expressions for two-and three-body dispersion interactions between the microscopic parts of a real metal are first obtained, both in the retarded and non-retarded limits. These expressions are then used to evaluate the overall two-and three-body contributions to the macroscopic Casimir-Polder and Casimir force, and to compare them with each other, for the two following geometries: metal nanoparticle/half-space and half-space/half-space, where all the materials are assumed perfect conductors. The above evaluation is obtained by summing up the contributions from the microscopic constituents of the bodies (metal nanoparticles). In the case of nanoparticle/half-space, our results fully agree with those that can be extracted from the corresponding macroscopic results, and explicitly show the non-applicability of the pairwise approximation for the geometry considered. In both cases, we find that, while the overall two-body contribution yields an attractive force, the overall three-body contribution is repulsive. Also, they turn out to be of the same order, consistently with the known non applicability of the pairwise approximation. The issue of the rapidity of convergence of the many-body expansion is also briefly discussed.

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Dispersion Forces I

Cited by 178 publications

References 0 publications

Dynamical Casimir-Polder interaction between a chiral molecule and a surface

Dynamical Casimir-Polder interaction between a chiral molecule and a surface

Manipulating the Coulomb interaction: a Green's function perspective

A microscopic approach to Casimir and Casimir–Polder forces between metallic bodies

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