A local photon perspective on the momentum of light
- URL: http://arxiv.org/abs/2410.03633v1
- Date: Fri, 4 Oct 2024 17:40:19 GMT
- Title: A local photon perspective on the momentum of light
- Authors: Gabriel Waite, Daniel Hodgson, Ben Lang, Varghese Alapatt, Almut Beige,
- Abstract summary: We introduce a local photon approach for modelling the quantised electromagnetic field in position space.
We define the momentum of light, in analogy to the momentum of quantum mechanical point particles, as the generator for the spatial translation of photonic wave packets.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Recently we introduced a local photon approach for modelling the quantised electromagnetic field in position space. Using this approach, in this paper we define the momentum of light, in analogy to the momentum of quantum mechanical point particles, as the generator for the spatial translation of photonic wave packets. Afterwards, we analyse the momentum dynamics of light when transitioning from air into a denser dielectric medium. Our analysis shines new light onto the Abraham-Minkowski controversy which highlights the intricacies involved in the characterisation of the momentum of the electromagnetic field. Although our results align with Minkowski's theory and with the definition of the canonical momentum of light in quantum electrodynamics, there are also some crucial differences.
Related papers
- The wave function of a photoelectron near the center of a quantum vortex [0.0]
In a two-dimensional approximation, the probability density and current for a photoelectron near the localization of a quantum vortex are theoretically investigated.
The wave function in the momentum representation, which we found earlier, is simplified near zero, corresponding to the center of the vortex.
arXiv Detail & Related papers (2024-02-06T21:22:55Z) - A theory of local photons with applications in quantum field theory [0.0]
In quantum optics it is usual to describe the basic energy quanta of the electromagnetic (EM) field, photons, in terms of monochromatic waves.
We take an alternative approach and quantise the free EM field in both one and three dimensions in terms of quanta that are perfectly localised.
Here we show that, unlike standard quantisation schemes, our approach predicts the causal propagation of localised photonic wave packets.
arXiv Detail & Related papers (2023-03-08T16:47:09Z) - Quantum theory of light interaction with a Lorenz-Mie particle: Optical
detection and three-dimensional ground-state cooling [0.0]
Hamiltonian describes fundamental coupling between photons and center-of-mass phonons, including Stokes and anti-Stokes processes.
We show how to evaluate laser recoil rates and the information radiation patterns in the presence of a focused laser beam.
arXiv Detail & Related papers (2022-12-09T13:11:29Z) - Fundamental limits of pulsed quantum light spectroscopy: Dipole moment
estimation [0.1529342790344802]
We study the limits of the precision of estimating parameters of a quantum matter system probed by a travelling pulse of quantum light.
Our work initiates a quantum information theoretic methodology for developing the theory and practice of quantum light spectroscopy.
arXiv Detail & Related papers (2022-10-03T16:32:08Z) - Motion induced excitation and electromagnetic radiation from an atom
facing a thin mirror [62.997667081978825]
We evaluate the probability of (de-)excitation and photon emission from a neutral, moving, non-relativistic atom, coupled to a quantum electromagnetic field and in the presence of a thin, perfectly conducting plane ("mirror")
Results extend to a more realistic model, where the would-be electron was described by a scalar variable, coupled to an (also scalar) vacuum field.
arXiv Detail & Related papers (2022-07-06T20:54:59Z) - Stochastic Variational Approach to Small Atoms and Molecules Coupled to
Quantum Field Modes [55.41644538483948]
We present a variational calculation (SVM) of energies and wave functions of few particle systems coupled to quantum fields in cavity QED.
Examples for a two-dimensional trion and confined electrons as well as for the He atom and the Hydrogen molecule are presented.
arXiv Detail & Related papers (2021-08-25T13:40:42Z) - Waveguide quantum electrodynamics: collective radiance and photon-photon
correlations [151.77380156599398]
Quantum electrodynamics deals with the interaction of photons propagating in a waveguide with localized quantum emitters.
We focus on guided photons and ordered arrays, leading to super- and sub-radiant states, bound photon states and quantum correlations with promising quantum information applications.
arXiv Detail & Related papers (2021-03-11T17:49:52Z) - Bloch-Landau-Zener dynamics induced by a synthetic field in a photonic
quantum walk [52.77024349608834]
We realize a photonic quantum walk in the presence of a synthetic gauge field.
We investigate intriguing system dynamics characterized by the interplay between Bloch oscillations and Landau-Zener transitions.
arXiv Detail & Related papers (2020-11-11T16:35:41Z) - Quantum Kinetics of the Magneto Photo Galvanic Effect [0.0]
We derive quasiclassical equations for Bloch electrons in noncentrosymmetric crystals upon excitation with quasimonochromatic radiation.
These equations are the analog to the semiconductor-Bloch-equations for the dynamics of electrons including the photogalvanic effect (PGE)
We disprove existing statements that the shift-photogalvanic effect does not contribute to the photo-Hall current.
arXiv Detail & Related papers (2020-09-27T14:55:00Z) - Motion induced by asymmetric excitation of the quantum vacuum [62.997667081978825]
We study the effect of excitation of the quantum vacuum field induced by its coupling with a moving object.
In the present model, this excitation occurs asymmetrically on different sides of the object.
arXiv Detail & Related papers (2020-09-16T02:02:42Z) - Theory of waveguide-QED with moving emitters [68.8204255655161]
We study a system composed by a waveguide and a moving quantum emitter in the single excitation subspace.
We first characterize single-photon scattering off a single moving quantum emitter, showing both nonreciprocal transmission and recoil-induced reduction of the quantum emitter motional energy.
arXiv Detail & Related papers (2020-03-20T12:14:10Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.