Results 41 to 50 of about 15,934 (228)
Elliptical Ring Antenna Excited by Circular Disc Monopole for UWB Communications
This research proposes a compact elliptical ring antenna excited by a circular disc monopole (CDM) for ultra-wideband (UWB) communications. In the study, time- and frequency-domain pulse distortions of the antenna in the transmission mode were ...
Krittaya Nakprasit +2 more
doaj +1 more source
Collisionless reconnection using Alfvén wave radiation resistance [PDF]
Patchy magnetic reconnection involves transient field-aligned current filaments. The spatial localization, transient time-dependence, and orientation of these current filaments means they must radiate torsional Alfvén waves. Radiation of wave energy does
Bellan, P. M.
core +1 more source
Quantum electrodynamics in modern optics and photonics: tutorial [PDF]
One of the key frameworks for developing the theory of light–matter interactions in modern optics and photonics is quantum electrodynamics (QED). Contrasting with semiclassical theory, which depicts electromagnetic radiation as a classical wave, QED ...
Acosta +192 more
core +1 more source
Modelling of Data Communication over Medium-Voltage Power Distribution Lines
The paper is dedicated to different topologies of medium-voltage power distribution lines with respect to their properties influencing the transmission of communication signals.
Jaromir Hrad, Jiri Vodrazka
doaj +1 more source
Quintessential Affleck-Dine baryogenesis with non-minimal couplings
We present a novel Affleck-Dine scenario for the generation of the observed baryon asymmetry of the Universe based on the non-trivial interplay between quintessential inflationary models containing a kinetic dominated post-inflationary era and a non ...
Bettoni, Dario, Rubio, Javier
core +1 more source
This study aims to examine the effect of profitability and firm age on human resource accounting disclosure (HRAD) in banking companies listed on the Indonesia Stock Exchange (IDX) during the period 2022–2024. This study uses a quantitative approach with
Destriyana Luthfiyanti +1 more
doaj +1 more source
Complementarity Endures: No Firewall for an Infalling Observer
We argue that the complementarity picture, as interpreted as a reference frame change represented in quantum gravitational Hilbert space, does not suffer from the "firewall paradox" recently discussed by Almheiri, Marolf, Polchinski, and Sully. A quantum
A Almheiri +17 more
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New criteria for self-adjointness and its application to Dirac-Maxwell Hamiltonian [PDF]
We present a new theorem concerning a sufficient condition for a symmetric operator acting in a complex Hilbert space to be essentially self-adjoint. By applying the theorem, we prove that the Dirac Maxwell Hamiltonian, which describes a quantum system ...
Futakuchi, Shinichiro, Usui, Kouta
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The Dirac point electron in zero-gravity Kerr--Newman spacetime [PDF]
Dirac's wave equation for a point electron in the topologically nontrivial maximal analytically extended electromagnetic Kerr--Newman spacetime is studied in a zero-gravity limit; here, "zero-gravity" means $G\to 0$, where $G$ is Newton's constant of ...
Kiessling, M. K. -H. +1 more
core +1 more source
Nonlinear charge transport mechanism in periodic and disordered DNA [PDF]
We study a model for polaron-like charge transport mechanism along DNA molecules with emphasis on the impact of parametrical and structural disorder. Our model Hamiltonian takes into account the coupling of the charge carrier to two different kind of ...
Agarwal, J. +2 more
core +2 more sources

