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View article: Force Metrology with Plane Parallel Plates: Final Design Review and Outlook
Force Metrology with Plane Parallel Plates: Final Design Review and Outlook Open
During the past few decades, abundant evidence for physics beyond the two standard models of particle physics and cosmology was found. Yet, we are tapping in the dark regarding our understanding of the dark sector. For more than a century,…
View article: Force metrology with plane parallel plates: Final design review and outlook
Force metrology with plane parallel plates: Final design review and outlook Open
During the past few decades, abundant evidence for physics beyond the two standard models of particle physics and cosmology was found. Yet, we are tapping into the dark regarding our understanding of the dark sector. For more than a centur…
View article: The power-spectrum tensor in steady-state systems and its role in quantum friction
The power-spectrum tensor in steady-state systems and its role in quantum friction Open
For systems in equilibrium, quantum statistical physics provides a number of general theorems and relations that are not tied to specific microscopic models, one example being the fluctuation-dissipation theorem. Much less is known for non…
View article: Time-domain modeling of interband transitions in plasmonic systems
Time-domain modeling of interband transitions in plasmonic systems Open
Efficient modeling of dispersive materials via time-domain simulations of the Maxwell equations relies on the technique of auxiliary differential equations. In this approach, a material’s frequency-dependent permittivity is represented via…
View article: High-accuracy Casimir-Polder force calculations using the Discontinuous Galerkin Time-Domain method
High-accuracy Casimir-Polder force calculations using the Discontinuous Galerkin Time-Domain method Open
We describe a numerical time-domain approach for high-accuracy calculations of Casimir-Polder forces near micro-structured materials. The use of a time-domain formulation enables the investigation of a broad range of materials described by…
View article: High-accuracy Casimir-Polder force calculations using the Discontinuous Galerkin Time-Domain method
High-accuracy Casimir-Polder force calculations using the Discontinuous Galerkin Time-Domain method Open
We describe a numerical time-domain approach for high-accuracy calculations of Casimir-Polder forces near micro-structured materials. The use of a time-domain formulation enables the investigation of a broad range of materials described by…
View article: Halevi's extension of the Euler-Drude model for plasmonic systems
Halevi's extension of the Euler-Drude model for plasmonic systems Open
The nonlocal response of plasmonic materials and nanostructures is often described within a hydrodynamic approach, which is based on the Euler-Drude equation. In this paper, we reconsider this approach within an extension proposed by Halev…
View article: Halevi's extension of the Euler-Drude model for plasmonic systems
Halevi's extension of the Euler-Drude model for plasmonic systems Open
The nonlocal response of plasmonic materials and nanostructures is usually described within a hydrodynamic approach which is based on the Euler-Drude equation. In this work, we reconsider this approach within linear response theory and emp…
View article: Time-domain modeling of interband transitions in plasmonic systems
Time-domain modeling of interband transitions in plasmonic systems Open
Efficient modeling of dispersive materials via time-domain simulations of the Maxwell equations relies on the technique of auxiliary differential equations. In this approach, a material's frequency-dependent permittivity is represented via…
View article: How modes shape Casimir physics
How modes shape Casimir physics Open
Modes have steadily influenced the understanding of physical systems through time. At least since the prediction of the Casimir effect, they also play a very important role in Casimir physics and in the understanding of the different pheno…
View article: In der Unruhe liegt die Kraft
In der Unruhe liegt die Kraft Open
Fluctuations are ubiquitous in nature. They are one of the fundamental building blocks of quantum mechanics and are responsible for a wide variety of phenomena in many areas of physics, ranging from biology to cosmology. Far from any class…
View article: Wading through the void: Exploring quantum friction and nonequilibrium fluctuations
Wading through the void: Exploring quantum friction and nonequilibrium fluctuations Open
When two or more objects move relative to one another in vacuum, they experience a drag force, which, at zero temperature, usually goes under the name of quantum friction. This contactless non-conservative interaction is mediated by the fl…
View article: Using graphene conductors to enhance the functionality of atom chips
Using graphene conductors to enhance the functionality of atom chips Open
We show that the performance and functionality of atom-chips can be transformed by using graphene-based van der Waals heterostructures to overcome present limitations on the lifetime of the trapped atom cloud and on its proximity to the ch…
View article: Electromagnetic Viscosity in Complex Structured Environments: From black-body to Quantum Friction
Electromagnetic Viscosity in Complex Structured Environments: From black-body to Quantum Friction Open
We investigate the nonconservative open-system dynamics of an atom in a generic complex structured electromagnetic environment at temperature $T$. In such systems, when the atom moves along a translation-invariant axis of the environment, …
View article: Nonequilibrium thermodynamics of quantum friction
Nonequilibrium thermodynamics of quantum friction Open
Thermodynamic principles are often deceptively simple and yet surprisingly\npowerful. We show how a simple rule, such as the net flow of energy in and out\nof a moving atom under nonequilibrium steady state condition, can expose the\nshort…
View article: Nonadditive Enhancement of Nonequilibrium Atom-Surface Interactions
Nonadditive Enhancement of Nonequilibrium Atom-Surface Interactions Open
The motion-induced drag force acting on a particle moving parallel to an arrangement of N objects is analyzed. Particular focus is placed on the nonequilibrium statistics of the interaction and on the interplay between the system's geometr…
View article: Modeling electromagnetic resonators using quasinormal modes
Modeling electromagnetic resonators using quasinormal modes Open
We present a biorthogonal approach for modeling the response of localized electromagnetic resonators using quasinormal modes, which represent the natural, dissipative eigenmodes of the system with complex frequencies. For many problems of …
View article: Quantum thermodynamics of overdamped modes in local and spatially dispersive materials
Quantum thermodynamics of overdamped modes in local and spatially dispersive materials Open
The quantum thermodynamical properties of (quasi-normal) overdamped\nelectromagnetic modes (eddy currents) are investigated in the context of the\nmagnetic Casimir-Polder interaction. The role of the material response in terms\nof spatiall…
View article: Polaritonic contribution to the Casimir energy between two graphene layers
Polaritonic contribution to the Casimir energy between two graphene layers Open
We study the role of surface polaritons in the zero-temperature Casimir\neffect between two graphene layers that are described by the Dirac model. A\nparametric approach allows us to accurately calculate the dispersion relations\nof the re…
View article: Non-Additivity of Nonequilibrium Atom-Surface Forces
Non-Additivity of Nonequilibrium Atom-Surface Forces Open
The motion-induced drag force acting on a particle moving within a planar cavity - a relevant configuration for many experimental investigations - is calculated. This drag force exhibits a markedly non-additive nature and can evaluate to a…
View article: Quantum Rolling Friction
Quantum Rolling Friction Open
An atom moving in a vacuum at constant velocity and parallel to a surface experiences a frictional force induced by the dissipative interaction with the quantum fluctuations of the electromagnetic field. We show that the combination of non…
View article: Extended hydrodynamic description for nonequilibrium atom-surface interactions
Extended hydrodynamic description for nonequilibrium atom-surface interactions Open
The dissipative properties of spatially nonlocal conductors are investigated\nin the context of quantum friction acting on an atom moving above a macroscopic\nbody. The focus is on an extended version of the hydrodynamic model for the\nbul…
View article: Nonequilibrium atom-surface interaction with lossy multilayer structures
Nonequilibrium atom-surface interaction with lossy multilayer structures Open
The impact of lossy multi-layer structures on nonequilibrium atom-surface\ninteractions is discussed. Specifically, the focus lies on a fully\nnon-Markovian and nonequilibrium description of quantum friction, the\nfluctuation-induced drag …
View article: Modified dipole-dipole interaction and dissipation in an atomic ensemble near surfaces
Modified dipole-dipole interaction and dissipation in an atomic ensemble near surfaces Open
We study how the radiative properties of a dense ensemble of atoms can be\nmodified when they are placed near or between metallic or dielectric surfaces.\nIf the average separation between the atoms is comparable or smaller than the\nwavel…
View article: Nonperturbative and non-Markovian Förster-interaction in waveguiding systems
Nonperturbative and non-Markovian Förster-interaction in waveguiding systems Open
An exact solution to the interaction between two emitters mediated by Förster resonance energy transfer is presented. The system is comprised of a one-dimensional optical waveguide with two embedded two-level systems and is analyzed using …
View article: Nonperturbative and non-Markovian F\"{o}rster-interaction in waveguiding systems
Nonperturbative and non-Markovian F\"{o}rster-interaction in waveguiding systems Open
An exact solution to the interaction between two emitters mediated by F\{o}rster resonance energy transfer is presented. The system is comprised of a one-dimensional optical waveguide with two embedded two-level systems and is analyzed usi…
View article: Plasmonic modes in nanowire dimers: A study based on the hydrodynamic Drude model including nonlocal and nonlinear effects
Plasmonic modes in nanowire dimers: A study based on the hydrodynamic Drude model including nonlocal and nonlinear effects Open
A combined analytical and numerical study of the modes in two distinct plasmonic nanowire systems is presented. The computations are based on a Discontinuous Galerkin Time-Domain approach and a fully nonlinear and nonlocal hydrodynamic Dru…
View article: Spatial dispersion in atom-surface quantum friction
Spatial dispersion in atom-surface quantum friction Open
We investigate the influence of spatial dispersion on atom-surface quantum friction. We show that for atom-surface separations shorter than the carrier's mean free path within the material, the frictional force can be several orders of mag…
View article: Non-Markovianity in atom-surface dispersion forces
Non-Markovianity in atom-surface dispersion forces Open
Here, we discuss the failure of the Markov approximation in the description of atom-surface fluctuation-induced interactions, both in equilibrium (Casimir-Polder forces) and out of equilibrium (quantum friction). Using general theoretical …
View article: Failure of Local Thermal Equilibrium in Quantum Friction
Failure of Local Thermal Equilibrium in Quantum Friction Open
Recent progress in manipulating atomic and condensed matter systems has instigated a surge of interest in nonequilibrium physics, including many-body dynamics of trapped ultracold atoms and ions, near-field radiative heat transfer, and qua…