Results 11 to 20 of about 167,904 (230)

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

Comment on Half-Integer Quantum Numbers for the Total Angular Momentum of Photons in Light Beams with Finite Lateral Extensions [PDF]

open access: yesAmerican Journal of Modern Physics, 2017
Recently the spectacular result was derived quantum mechanically that the total angular momentum of photons in light beams with finite lateral extensions can have half-integer quantum numbers. In a circularly polarized Gauss light beam it is half of the spin angular momentum which it would have in a respective infinitely extended wave. In another paper
openaire   +3 more sources

Exact solution of the two-axis countertwisting Hamiltonian [PDF]

open access: yes, 2016
It is shown that the two-axis countertwisting Hamiltonian is exactly solvable when the quantum number of the total angular momentum of the system is an integer after the Jordan-Schwinger (differential) boson realization of the SU(2) algebra.
Draayer, Jerry P.   +2 more
core   +2 more sources

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

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

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

Stationary scalar and vector clouds around Kerr-Newman black holes

open access: yes, 2020
Massive bosons in the vicinity of Kerr-Newman black holes can form pure bound states when their phase angular velocity fulills the synchronisation condition, i.e. at the threshold of superradiance.
Herdeiro, Carlos A. R., Santos, Nuno M.
core   +1 more source

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