Results 21 to 30 of about 1,033,265 (214)

Nonperturbative waveguide quantum electrodynamics

open access: yesPhysical Review Research, 2022
Understanding physical properties of quantum emitters strongly interacting with quantized electromagnetic modes is one of the primary goals in the emergent field of waveguide quantum electrodynamics (QED).
Yuto Ashida   +3 more
doaj   +1 more source

Cavity Quantum Electrodynamics Complete Active Space Configuration Interaction Theory [PDF]

open access: yes, 2023
Polariton chemistry has attracted great attention as a potential route to modify chemical structure, properties, and reactivity through strong interactions between molecular electronic, vibrational, or rovibrational degrees of freedom.
Erdal, Mutlu   +6 more
core   +1 more source

On the Renormalization in Quantum Electrodynamics [PDF]

open access: yesProgress of Theoretical Physics, 1952
The new renonnalization procedure in quantum electrodynamics is presented in this paper. With this procedure, the finite S-matrix can be automatically obtained by· use of the modified commutation relations and propagation functions and, therefore, without introducing the counter tenns of mass- and charge-types.
Kamefuchi, Susumu, Umezawa, Hiroomi
openaire   +1 more source

Visualizing the emission of a single photon with frequency and time resolved spectroscopy [PDF]

open access: yesQuantum, 2021
At the dawn of Quantum Physics, Wigner and Weisskopf obtained a full analytical description (a $\textit{photon portrait}$) of the emission of a single photon by a two-level system, using the basis of frequency modes (Weisskopf and Wigner, "Zeitschrift ...
Aleksei Sharafiev   +6 more
doaj   +1 more source

Quantum electrodynamics in finite volume and nonrelativistic effective field theories

open access: yesPhysics Letters B, 2016
Electromagnetic effects are increasingly being accounted for in lattice quantum chromodynamics computations. Because of their long-range nature, they lead to large finite-size effects over which it is important to gain analytical control. Nonrelativistic
Z. Fodor   +6 more
doaj   +1 more source

Quantum Spacetime Geometrization: QED at High Curvature and Direct Formation of Supermassive Black Holes from the Big Bang

open access: yesQuantum Reports, 2023
In this work, the author employs the quantum hydrodynamic formalism to achieve the geometrization of spacetime for describing the gravitational interaction within the framework of quantum theory. This approach allows for the development of an equation of
Piero Chiarelli
doaj   +1 more source

No drama quantum electrodynamics? [PDF]

open access: yesThe European Physical Journal C, 2013
This article builds on recent work (A. Akhmeteli, Int'l Journ. of Quantum Information, vol. 9, Suppl. (2011) p. 17, and A. Akhmeteli, Journ. Math. Phys., vol. 52 (2011) p. 082303), providing a theory that is based on spinor electrodynamics, is described by a system of partial differential equations in 3+1 dimensions, but reproduces unitary evolution of
openaire   +2 more sources

Nuclear Gradient Expressions for Molecular Cavity Quantum Electrodynamics Simulations using Mixed Quantum-Classical Methods [PDF]

open access: yes, 2022
We derive a rigorous nuclear gradient for a molecule-cavity hybrid system using the Quantum Electrodynamics Hamiltonian. We treat the electronic-photonic DOFs as the quantum subsystem, and the nuclei as the classical subsystem.
Pengfei, Huo   +3 more
core   +1 more source

Quantum bath engineering of a high impedance microwave mode through quasiparticle tunneling

open access: yesNature Communications, 2022
Quantum bath engineering in the context of circuit quantum electrodynamics typically relies on single-photon losses. Aiello et al. demonstrate an approach for engineering higher-order photon losses in a microwave resonator coupled to a tunnel junction ...
Gianluca Aiello   +6 more
doaj   +1 more source

Review of rationales for the introduction of the “Geophysical electrodynamics” term

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2022
Background. The article provides arguments for the introduction of the “geophysical electrodynamics” term.Aim. To justify the introduction of a new term “geophysical electrodynamics”.Methods of substantiation. The limits of the applicability of Maxwell’s
V. V. Aksenov
doaj   +1 more source

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