Zobrazeno 1 - 10
of 435
pro vyhledávání: '"Eigenstates"'
Publikováno v:
Physics, Vol 6, Iss 1, Pp 317-333 (2024)
At energy lower than 2 eV, the dispersion law of the electrons in a graphene sheet presents a linear dependence of the energy on the kinetic momentum, which is typical of photons and permits the description of the electrons as massless particles by m
Externí odkaz:
https://doaj.org/article/b3e432728fd144609a2f4505a9466375
Publikováno v:
Symmetry, Vol 16, Iss 3, p 297 (2024)
Using a flexible form for ladder operators that incorporates confluent hypergeometric functions, we show how one can determine all of the discrete energy eigenvalues and eigenvectors of the time-independent Schrödinger equation via a single factoriz
Externí odkaz:
https://doaj.org/article/87e8b5f082a241aa92011b6551e8f86c
Autor:
Paul Bracken
Publikováno v:
Symmetry, Vol 15, Iss 10, p 1923 (2023)
A quantum symmetry called entanglement-assisted invariance, also called envariance, is introduced. It is studied with respect to the process of performing quantum measurements. An apparatus which interacts with other physical systems, which are calle
Externí odkaz:
https://doaj.org/article/28d6a57bf8194890a780b9393e06a967
Autor:
Allan D. Ernest
Publikováno v:
Universe, Vol 9, Iss 9, p 388 (2023)
The laboratory verification of the existence of gravitational eigenstates and studies of their properties in the Earth’s gravitational field raises the question of whether the prediction of particle behaviour in gravitational wells would be any dif
Externí odkaz:
https://doaj.org/article/173b13868e7f4736ad5c00fc3d850970
Autor:
Ekkehard Krüger
Publikováno v:
Symmetry, Vol 15, Iss 8, p 1533 (2023)
We show that the high-temperature superconductor LaH10 possesses an unusual superconducting band in its band structure. We examine this band by group-theoretical methods and report evidence that the special features of the band support the characteri
Externí odkaz:
https://doaj.org/article/81499f4721eb484487cfa30ec940c624
Autor:
Anatoly E. Obzhirov, Eric J. Heller
Publikováno v:
Entropy, Vol 25, Iss 5, p 751 (2023)
Electronic structure theory describes the properties of solids using Bloch states that correspond to highly symmetrical nuclear configurations. However, nuclear thermal motion destroys translation symmetry. Here, we describe two approaches relevant t
Externí odkaz:
https://doaj.org/article/8af468f0b12443c4bd8f59913981af72
Autor:
Anouar Moustaj, Malte Röntgen, Christian V Morfonios, Peter Schmelcher, Cristiane Morais Smith
Publikováno v:
New Journal of Physics, Vol 25, Iss 9, p 093019 (2023)
The Fibonacci chain, i.e. a tight-binding model where couplings and/or on-site potentials can take only two different values distributed according to the Fibonacci word, is a classical example of a one-dimensional quasicrystal. With its many intrigui
Externí odkaz:
https://doaj.org/article/5b586b2c280841b6b9fb2088e9424ad2
Publikováno v:
Symmetry, Vol 15, Iss 4, p 797 (2023)
The factorization method was introduced by Schrödinger in 1940. Its use in bound-state problems is widely known, including in supersymmetric quantum mechanics; one can create a factorization chain, which simultaneously solves a sequence of auxiliary
Externí odkaz:
https://doaj.org/article/3ad766211d4a49c394bb0ab5c6231086
Autor:
Alberto Hernandez-Escobar, Elena Abdo-Sanchez, Pablo Mateos-Ruiz, Jaime Esteban, Teresa Maria Martin-Guerrero, Carlos Camacho-Penalosa
Publikováno v:
IEEE Journal of Microwaves, Vol 1, Iss 3, Pp 810-820 (2021)
An equivalent-circuit topology for two-port lossy non-symmetric reciprocal networks is proposed. The circuit topology is based on the eigenstate decomposition. The proposed circuit consists of two immittances and two transformers with a single comple
Externí odkaz:
https://doaj.org/article/780f38d7ff1b4711a7989b1b00cfaa96
Publikováno v:
Results in Physics, Vol 31, Iss , Pp 104904- (2021)
We study the eigenvalue problem for a linear potential Hamiltonian and, by writing the Airy equation in terms of momentum and position operators define Airy states. By using the unit operator in terms of Airy states we find a relation between them an
Externí odkaz:
https://doaj.org/article/b630fded91944935a7769d80357acf83