Effective Polarisability Models

Abstract

Theories for the effective polarisability of a small particle in a medium are presented using different levels of approximation: we consider the virtual cavity, real cavity and the hard-sphere models as well as a continuous interpolation of the latter two. We present the respective hard-sphere and cavity radii as obtained from density-functional simulations as well as the resulting effective polarisabilities at discrete Matsubara frequencies. This enables us to account for macroscopic media in van der Waals interactions between molecules in water and their Casimir-Polder interaction with an interface.

References in corpus (8)

• Dielectric decrement as a source of ion specific effects
• Mass Density Fluctuations in Quantum and Classical descriptions of Liquid Water
• First-principles molecular dynamics simulations at solid-liquid interfaces with a continuum solvent
• Local-field correction to one- and two-atom van der Waals interactions
• Electrostatic interactions mediated by polarizable counterions: weak and strong coupling limits
• Anisotropic contribution to the van der Waals and the Casimir-Polder energies for CO${}_2$ and CH${}_4$ molecules near surfaces and thin films
• Casimir-Polder interaction between an atom and a small magnetodielectric sphere
• Correct zero-point energy-momentum of the electromagnetic field in media for studying the Casimir force

Cited by in corpus (19)

• Non-retarded room temperature Hamaker constants between elemental metals
• Self-preserving ice layers on CO2 clathrate particles: implications for Enceladus, Pluto and similar ocean worlds
• Multiple scattering expansion for dielectric media: Casimir effect
• Plane-wave approach to the exact van der Waals interaction between colloid particles
• Macroscopic quantum electrodynamics theory of resonance energy transfer involving chiral molecules
• Dispersion forces stabilise ice coatings at certain gas hydrate interfaces which prevent water wetting
• Macroscopic Quantum Electrodynamics and Density Functional Theory Approaches to Dispersion Interactions between Fullerenes
• Impact of effective polarisability models on the predicted release dynamics of CH${}_4$ and CO${}_2$ from premelted ice
• Non-trivial retardation effects in dispersion forces: From anomalous distance dependence to novel traps
• Effective screening of medium-assisted Van der Waals interactions between embedded particles
• Limits to Quantum Gate Fidelity from Near-Field Thermal and Vacuum Fluctuations
• Reliable computational prediction of supramolecular ordering of complex molecules under electrochemical conditions
• Regimes of the lateral van der Waals force in the presence of dielectrics
• Purcell-induced suppression of superradiance for molecular overlayers on noble atom surfaces
• Retarded room temperature Hamaker coefficients between bulk elemental metals
• Purcell effect in chiral environments
• A Green-function unification of weak interactions with environmental dressing
• Dispersion forces in inhomogeneous planarly layered media: A one-dimensional model for effective polarisabilities
• Duality, decay rates and local-field models in macroscopic QED