Results 11 to 20 of about 168,598 (229)

A quantum analogy to the classical gravitomagnetic clock effect

open access: yesResults in Physics, 2018
We present an approximation to the solution of Dirac equation in Schwarzschild field found through the use of Foldy-Wouthuysen Hamiltonian. We solve the equation for the positive energy states and found the frequencies by which the states oscillate ...
S.B. Faruque
doaj   +1 more source

Analysis of rescattering effects in $$3\pi $$ 3 π final states

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
Decays into three particles are often described in terms of two-body resonances and a non-interacting spectator particle. To go beyond this simplest isobar model, crossed-channel rescattering effects need to be accounted for.
Dominik Stamen   +4 more
doaj   +1 more source

Partons as unique ground states of quantum Hall parent Hamiltonians: The case of Fibonacci anyons

open access: yesSciPost Physics, 2023
We present microscopic, multiple Landau level, (frustration-free and positive semi-definite) parent Hamiltonians whose ground states, realizing different quantum Hall fluids, are parton-like and whose excitations display either Abelian or non-Abelian ...
Mostafa Tanhayi Ahari, Sumanta Bandyopadhyay, Zohar Nussinov, Alexander Seidel, Gerardo Ortiz
doaj   +1 more source

Can the radial number of vortex modes control the orbital angular momentum?

open access: yesКомпьютерная оптика, 2022
In general, a standard Laguerre–Gauss (LG) beam, whose state is given by two quantum numbers (n, 𝓁): the radial number n and the azimuthal number 𝓁 (or the topological charge (TС) of the vortex carried by the LG beam), is unstable with respect to weak ...
A.V. Volyar   +4 more
doaj   +1 more source

Can We Break the Landauer Bound in Spin-Based Electronics?

open access: yesIEEE Access, 2021
We found that the minimum energy of reading or erasing a spin datum should be expressed by $\Delta E=2~\mu _{B}B$ , in contrast to ${\Delta E=k}_{B}T\,\,ln(2)$ proposed by Landauer in 1961. The physics of using a spin’s orientation to represent
Frank Z. Wang
doaj   +1 more source

Signature and Angular Momentum in 3d-Cranked HFB states [PDF]

open access: yes, 1997
In terms of the exaxt angular momentum projection, properties of the three dimensional cranked HFB (3d-CHFB) states are analyzed quantitatively in the context of the relation between the signature of an intrinsic symmetry and the parity of angular ...
Horibata, Takatoshi   +3 more
core   +2 more sources

Photon vortex generation by synchrotron radiation experiments in relativistic quantum approach

open access: yesPhysical Review Research, 2023
We formulate a theoretical approach to describe photon vortex production in synchrotron/cyclotron radiation from a helical moving electron under a uniform magnetic field in the relativistic quantum framework.
Tomoyuki Maruyama   +4 more
doaj   +1 more source

Probability of radiation of twisted photons by classical currents [PDF]

open access: yes, 2017
The general formula for the probability of radiation of a twisted photon by a classical current is derived. The general theory of generation of twisted photons by undulators is developed.
Bogdanov, O. V.   +2 more
core   +3 more sources

Self-Energy Correction to the Hyperfine Splitting for Excited States [PDF]

open access: yes, 2011
The self-energy corrections to the hyperfine splitting is evaluated for higher excited states in hydrogenlike ions, using an expansion in the binding parameter Zalpha, where Z is the nuclear charge number, and alpha is the fine-structure constant.
Jentschura, U. D., Wundt, B. J.
core   +3 more sources

Multidimensional QKD Based on Combined Orbital and Spin Angular Momenta of Photon

open access: yesIEEE Photonics Journal, 2013
It has been widely recognized that the underlying principles of quantum mechanics could be used to enable secure communications, without any additional conventional cryptographic systems, while utilizing the properties of the photons.
Ivan B. Djordjevic
doaj   +1 more source

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