131 citations · 1.2k across the 59 of their papers we have counts for
15 papers · 1 filter
Enhanced entanglement in multi-bath spin-boson models
Charlie R. Hogg, Federico Cerisola, James D. Cresser +2
The spin-boson model usually considers a spin coupled to a single bosonic bath. However, some physical situations require coupling of the spin to multiple environments. For example…
Time varying gratings model Hawking radiation
Simon A. R. Horsley, John B. Pendry
Diffraction gratings synthetically moving at trans-luminal velocities contain points where wave and grating velocities are equal. We show these points can be understood as a series…
Quantum-classical correspondence in spin-boson equilibrium states at arbitrary coupling
Federico Cerisola, Marco Berritta, Stefano Scali +3
The equilibrium properties of nanoscale systems can deviate significantly from standard thermodynamics due to their coupling to an environment. For the generalised -angled spin-…
Tutorial: Macroscopic QED and vacuum forces
S. A. R. Horsley
This tutorial introduces the theory of macroscopic QED, where a Hamiltonian is found that represents the electromagnetic field interacting with a dispersive, dissipative material.…
Quantum Brownian Motion for Magnets
J. Anders, C. R. J. Sait, S. A. R. Horsley
Spin precession in magnetic materials is commonly modelled with the classical phenomenological Landau-Lifshitz-Gilbert (LLG) equation. Based on a quantized spin+environment Hamilto…
Scattering of accelerated wave packets
S. Longhi, S. A. R. Horsley, G. Della Valle
Wave-packet scattering from a stationary potential is significantly modified when the wave-packet is subject to an external time-dependent force during the interaction. In the semi…
Polariton excitation rates from time dependent dielectrics
S. Bugler-Lamb, S. A. R. Horsley
In recent years, a rigorous quantum mechanical model for the interaction between light and macroscopic dispersive, lossy dielectrics has emerged -macroscopic QED- allowing the appl…
Negative frequencies in wave propagation: a microscopic model
S. A. R. Horsley, S. Bugler-Lamb
A change in the sign of the frequency of a wave between two inertial reference frames corresponds to a reversal of the phase velocity. Yet from the point of view of the relation $E…
Localized exciton-polariton modes in dye-doped nanospheres: a quantum approach
Martin J. Gentile, Simon A. R. Horsley, William L. Barnes
We model a dye-doped polymeric nanosphere as an ensemble of quantum emitters and use it to investigate the localized exciton-polaritons supported by such a nanosphere. By determini…
Canonical quantization of electromagnetism in spatially dispersive media
S. A. R. Horsley, T. G. Philbin
We find the action that describes the electromagnetic field in a spatially dispersive, homogeneous medium. This theory is quantized and the Hamiltonian is diagonalized in terms of…
Damping the zero-point energy of a harmonic oscillator
T. G Philbin, S. A. R. Horsley
The physics of quantum electromagnetism in an absorbing medium is that of a field of damped harmonic oscillators. Yet until recently the damped harmonic oscillator was not treated…
The cutoff-dependence of the Casimir force within an inhomogeneous medium
S. A. R. Horsley, W. M. R. Simpson
We consider the ground state energy of the electromagnetic field in a piston geometry. In the idealised case, where the piston and the walls of the chamber are taken as perfect mir…
Motion of macroscopic bodies in the electromagnetic field
S. A. R. Horsley
A theory is presented for calculating the effect of the electromagnetic field on the centre of mass of a macroscopic dielectric body that is valid in both quantum and classical reg…
Canonical quantization of the electromagnetic field interacting with a moving dielectric
S. A. R. Horsley
The electromagnetic field is canonically quantized in the presence of a linear, dispersive and dissipative medium that is in uniform motion. Specifically we calculate the change in…
Asymptotic quantum degeneracy at a 2D corner
S. A. R. Horsley, S. Martin-Haugh, M. Babiker +1
In quantum mechanics, asymptotic degeneracy is often considered in the context of a particle in a symmetric double-well potential, and is the phenomenon whereby pairs of energy lev…