Results 51 to 60 of about 95,918 (256)

The relation between classical and quantum electrodynamics [PDF]

, 2008
In this article it is presented the idea that quantum electrodynamics presents intrinsic limitations in the description of physical processes that makes it impossible to recover from it the type of description we have with classical electrodynamics.
Bacelar Valente, Mario
core  

An unknown story: Majorana and the Pauli-Weisskopf scalar electrodynamics

, 2007
An account is given of an interesting but unknown theory by Majorana regarding scalar quantum electrodynamics, elaborated several years before the known Pauli-Weisskopf theory.
Amaldi, Anderson, Blackett, Born, De Gregorio, Dirac, Dirac, Dirac, Dirac, Dirac, Esposito, Esposito, Fermi, Fermi, Fermi, Fermi, Fermi, Fermi, Fermi, Heisenberg, Heisenberg, Heitler, Jordan, Jordan, Jordan, Miller, Pauli, Pauli, Rasetti, Recami, Weisskopf, Weyl, Weyl, Wick   +33 more
core   +1 more source

Coupling Nanostructured Plasmon–Strain Microwave Waveguide to Spin Defects in Hexagonal Boron Nitride for High‐Sensitivity Quantum Sensors

Advanced Materials, EarlyView.
Coupling of spin‐active VB−$V_B^ - $ defects in hBN with alumina‐coated gold plasmonic nanoresonators (PNRs), integrated into a microwave‐efficient waveguide, constitutes a plasmon‐strain architecture that enhances their photoluminescence and spin contrast. This platform enables a tenfold quantum yield improvement and achieves a DC magnetic sensitivity
Naveed Hussain, Sumukh Vaidya, Saakshi Dikshit, Shahriar Esmaeili, Paul Schmalenberg, Hayate Yamano, Katsunori Danno, Biswajit Sahoo, Shougo Higashi, Ercan M. Dede, Tongcang Li, Debasish Banerjee, Songtao Wu   +12 more
wiley   +1 more source

Time as a Quantum Observable, Canonically Conjugated to Energy, and Foundations of Self-Consistent Time Analysis of Quantum Processes

Advances in Mathematical Physics, 2009
Recent developments are reviewed and some new results are presented in the study of time in quantum mechanics and quantum electrodynamics as an observable, canonically conjugate to energy. This paper deals with the maximal Hermitian (but nonself-adjoint)
V. S. Olkhovsky
doaj   +1 more source

P.A.M. Dirac and the Discovery of Quantum Mechanics

, 2010
Dirac's contributions to the discovery of non-relativistic quantum mechanics and quantum electrodynamics, prior to his discovery of the relativistic wave equation, are ...
Dalitz R. H., Dirac P. A. M., Dirac P. A. M., Dirac P. A. M., Dirac P. A. M., Jammer M., Jost R., Kragh H., Kurt Gottfried, Mott N. F., Schweber S. S., van der Waerden B. L.   +11 more
core   +1 more source

Current Switching of Topological Spin Chirality in the van der Waals Antiferromagnet Co1/3TaS2

Advanced Materials, EarlyView.
Spin chirality plays a central role in quantum magnetism, governing spin winding and generating real‐space Berry phases. We propose the intriguing concept of current‐switching spin chirality and demonstrate it via unconventional intrinsic self‐spin‐orbit‐torque in pristine Co1/3TaS2, purely by electrical current and with high energy efficiency.
Kai‐Xuan Zhang, Seungbok Lee, Woonghee Cho, Je‐Geun Park   +3 more
wiley   +1 more source

On the Emergence of the Coulomb Forces in Quantum Electrodynamics

Advances in High Energy Physics, 2017
A simple transformation of field variables eliminates Coulomb forces from the theory of quantum electrodynamics. This suggests that Coulomb forces may be an emergent phenomenon rather than being fundamental.
Jan Naudts
doaj   +1 more source

Stochastic Electrodynamics: The Closest Classical Approximation to Quantum Theory

Atoms, 2019
Stochastic electrodynamics is the classical electrodynamic theory of interacting point charges which includes random classical radiation with a Lorentz-invariant spectrum whose scale is set by Planck’s constant.
Timothy H. Boyer
doaj   +1 more source

Large N external-field quantum electrodynamics

Journal of High Energy Physics, 2022
We advocate the study of external-field quantum electrodynamics with N charged particle flavors. Our main focus is on the Heisenberg-Euler effective action for this theory in the large N limit which receives contributions from all loop orders.
Felix Karbstein
doaj   +1 more source

Does Quantum Electrodynamics Have an Arrow of Time? [PDF]

, 2005
Quantum electrodynamics is a time-symmetric theory that is part of the electroweak interaction, which is invariant under a generalized form of this symmetry, the PCT transformation.
Atkinson, David
core   +2 more sources