Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Paul Strange"'
Autor:
J.L. Martin, Paul Strange
We apply the time-dependent supersymmetry methods of Bagrov, Samsonov and Shekoyan to the Schrödinger equation for a quantum bouncer. A new family of potentials, that correspond to the linear gravitational potential with a small oscillatory componen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e27e94727514ac270ba39ea87c247d4
https://kar.kent.ac.uk/88582/1/Martin_2021_Eur._J._Phys._42_045409.pdf
https://kar.kent.ac.uk/88582/1/Martin_2021_Eur._J._Phys._42_045409.pdf
Autor:
Jack R Herklots, Paul Strange
We analyse the evolution of superoscillations in a relativistic wavepacket. A simple superoscillat- ing wavepacket is set up and is allowed to evolve freely according to both the Klein-Gordon equation and the Dirac equation. The superoscillations evo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a099c67eefcae95d1a546efe72dc3003
In this paper we discuss relativistic quantum backflow. The general theory of relativistic backflow is written down and it is shown that the backflow can be written as a function of a simple parameter which is defined in terms of fundamental constant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c5d06fd6a5270d90460b1dd18aea496
Autor:
Paul Strange
Quantum-mechanical spin is often thought of in terms of classical angular momentum. In fact spin is defined by its commutation relations and the spin and orbital angular momentum operators are very different. Here we solve the Dirac equation in a rot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2337b6718db8035bc928299ef8e98f63
https://kar.kent.ac.uk/64298/2/PhysRevA.96.052103.pdf
https://kar.kent.ac.uk/64298/2/PhysRevA.96.052103.pdf
Autor:
Paul Strange, Gregory Smith
Publikováno v:
SPIE Proceedings.
We discuss null knotted solutions to Maxwell's equations, their creation through Bateman's construction, and their relation to the Hopf-fibration. These solutions have well-known, conserved properties, related to their winding numbers. For example: e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28b42f72d4f3c0ff737efeeb80d0bedf
https://doi.org/10.1117/12.2260484
https://doi.org/10.1117/12.2260484
Autor:
Paul Strange, Lewis H. Ryder
The Dirac equation in a rotating frame of reference is derived from first principles within a linear approximation. This equation is employed to exhibit an equivalence between a particle in a Dirac oscillator potential and a free particle in a rotati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5f7dbddaa5457558a2e53c6d2b28b89
https://kar.kent.ac.uk/57337/1/preprint_1.pdf
https://kar.kent.ac.uk/57337/1/preprint_1.pdf
Autor:
Paul Strange
Publikováno v:
European Journal of Physics. 33:1147-1154
In this paper we demonstrate a surprising aspect of quantum mechanics that is accessible to an undergraduate student. We discuss probability backflow for an electron in a constant magnetic field. It is shown that even for a wavepacket composed entire
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc678e108e95d4a7e61032111afdcb27
https://doi.org/10.1088/0143-0807/33/5/1147
https://doi.org/10.1088/0143-0807/33/5/1147
Autor:
Paul Strange, Gregory Smith
Publikováno v:
Journal of Physics A: Mathematical and Theoretical. 51:435204
Lipkin’s zilches are a set of little-known conserved quantities in classical\ud electromagnetic theory. Here we report a systematic calculation of the\ud zilches for topologically non-trivial vacuum electromagnetic fields and their\ud interpretatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5baf37cfdfbc3a81a8512102f0b5c08
https://doi.org/10.1088/1751-8121/aae15f
https://doi.org/10.1088/1751-8121/aae15f
Autor:
Paul Strange
Publikováno v:
Journal of Physics A: Mathematical and Theoretical. 51:335303
In this paper we discuss quantum curl forces. We present both the classical and\ud quantum theory of linear curl forces. The quantum theory is shown to reproduce the\ud classical theory precisely if appropriate combinations of eigenfunctions are chos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf17fe651fd1c6fd0363b5c0dba2cd58
https://doi.org/10.1088/1751-8121/aacecb
https://doi.org/10.1088/1751-8121/aacecb
Publikováno v:
Phase Transitions. 80:415-443
A review is given of pressure induced valence transitions in f-electron systems calculated with the self-interaction corrected local spin density (SIC-LSD) approximation. These calculations show that the SIC-LSD is able to describe valence changes as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74ea07d332907a9cc5234fa749dc041b
https://doi.org/10.1080/01411590701228703
https://doi.org/10.1080/01411590701228703