Results 31 to 40 of about 3,487 (163)

Waveguide bandgap engineering with an array of superconducting qubits

open access: yesnpj Quantum Materials, 2021
Waveguide quantum electrodynamics offers a wide range of possibilities to effectively engineer interactions between artificial atoms via a one-dimensional open waveguide.
Jan David Brehm   +5 more
doaj   +1 more source

Phenomenological Quantum-Electrodynamics

open access: yesPhysical Review, 1948
The quantization of the pure radiation field in a uniformly moving refractive medium is carried through both in the Hamiltonian and in the symmetrical four-dimensional form. The total energy and momentum are diagonalized. For a medium velocity larger than $\frac{c}{n}$ there occur photons with negative energy.
Jauch, Joseph-Maria, Watson, K.M.
openaire   +1 more source

Quantum Electrodynamics for Vector Mesons [PDF]

open access: yesPhysical Review Letters, 2005
4 pages, 2 figures, REVTeX 4, accepted for publication in ...
Djukanovic, D.   +3 more
openaire   +3 more sources

Non-Relativistic Quantum Electrodynamics and the Coulomb Interaction

open access: yesPhysics
This review explores the foundations of non-relativistic quantum electrodynamics (QED) and its application to atoms and molecules. It follows the traditional route of placing classical electrodynamics in an Hamiltonian framework, followed by Dirac’s ...
R. Guy Woolley
doaj   +1 more source

Focus on cavity and circuit quantum electrodynamics in solids

open access: yesNew Journal of Physics, 2015
We introduce the works collected in the focus issue on Cavity and circuit quantum quantum electrodynamics in solids.
Yasuhiko Arakawa   +5 more
doaj   +1 more source

Fibonacci Waveguide Quantum Electrodynamics [PDF]

open access: yesQuantum
Waveguide quantum electrodynamics (QED) provides a powerful framework for engineering quantum interactions, traditionally relying on periodic photonic arrays with continuous energy bands.
Florian Bönsel   +2 more
doaj   +1 more source

Nonequilibrium quantum electrodynamics [PDF]

open access: yesPhysical Review D, 1998
We employ the influence functional technique to trace out the photonic contribution from full quantum electrodynamics. The reduced density matrix propagator for the spinor field is then constructed. We discuss the role of time-dependent renormalization in the propagator and focus on the possibility of obtaining dynamically induced superselection rules.
Anastopoulos, C., Zoupas, A.
openaire   +2 more sources

Quantum magic in quantum electrodynamics

open access: yesPhysical Review D
27 pages, 8 ...
Qiaofeng Liu, Ian Low, Zhewei Yin
openaire   +2 more sources

Triviality of Quantum Electrodynamics Revisited* [PDF]

open access: yesCommunications in Theoretical Physics, 2018
Abstract Quantum electrodynamics is often considered to be a trivial theory. This is based on a number of evidences, both numerical and analytical. One of the strong indications for triviality of QED is the existence of the Landau pole for the running coupling.
Djukanovic, D.   +2 more
openaire   +4 more sources

Variational quantum electrodynamics [PDF]

open access: yesPhysical Review D, 2014
A variational method is discussed, based on the principle of minimal variance. The method seems to be suited for gauge interacting fermions, and the simple case of quantum electrodynamics is discussed in detail. The issue of renormalization is addressed, and the renormalized propagators are shown to be the solution of a set of finite integral equations.
openaire   +2 more sources

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