Zobrazeno 1 - 10
of 341
pro vyhledávání: '"Parfitt D"'
Publikováno v:
In International Journal of Fatigue July 2022 160
Publikováno v:
In Materials Science & Engineering A 7 October 2020 796
Publikováno v:
In Materials Science & Engineering A 28 January 2019 744:182-194
Publikováno v:
Phys. Rev. B 71, 035411 (2005)
Electron motion in a (n,1) carbon nanotube is shown to correspond to a de Broglie wave propagating along a helical line on the nanotube wall. This helical motion leads to periodicity of the electron potential energy in the presence of an electric fie
Externí odkaz:
http://arxiv.org/abs/cond-mat/0501472
Autor:
Parfitt, D. G. W., Portnoi, M. E.
Several problems in mathematical physics relating to excitons in two dimensions are considered. First, a fascinating numerical result from a theoretical treatment of screened excitons stimulates a re-evaluation of the familiar two-dimensional hydroge
Externí odkaz:
http://arxiv.org/abs/cond-mat/0410095
Autor:
Parfitt, D. G. W., Portnoi, M. E.
Publikováno v:
Phys. Rev. B 68, 035306 (2003)
The anyon exciton model is generalized to the case of a neutral exciton consisting of a valence hole and an arbitrary number N of fractionally-charged quasielectrons (anyons). A complete set of exciton basis functions is obtained and these functions
Externí odkaz:
http://arxiv.org/abs/cond-mat/0306441
Autor:
Parfitt, D. G. W., Portnoi, M. E.
Publikováno v:
International Journal of Nanoscience 2, 461 (2003)
We review the main results of the anyon exciton model in light of recent criticism by Wojs and Quinn. We show that the appearance of fractionally charged anyon ions at the bottom of their numerically calculated excitation spectra is an artefact cause
Externí odkaz:
http://arxiv.org/abs/cond-mat/0306414
Autor:
Parfitt, D. G. W., Portnoi, M. E.
Publikováno v:
Journal of Mathematical Physics 43, 4681 (2002)
The bound state energy eigenvalues for the two-dimensional Kepler problem are found to be degenerate. This "accidental" degeneracy is due to the existence of a two-dimensional analogue of the quantum-mechanical Runge-Lenz vector. Reformulating the pr
Externí odkaz:
http://arxiv.org/abs/math-ph/0205031
Publikováno v:
In Journal of Nuclear Materials June 2015 461:45-50
Publikováno v:
In Journal of Nuclear Materials April 2015 459:127-134