Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Evandro C. Silva"'
Publikováno v:
Journal of Physics A: Mathematical and General. 38:6239-6251
An approach featuring $s$-parametrized quasiprobability distribution functions is developed for situations where a circular topology is observed. For such an approach, a suitable set of angle-angular momentum coherent states must be constructed in ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb74de0de9ae3cf3829c8245a0fedb2c
https://doi.org/10.1088/0305-4470/38/27/010
https://doi.org/10.1088/0305-4470/38/27/010
Publikováno v:
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
We show how quasiprobability distribution functions defined over $N^{2}$-dimensional discrete phase spaces can be used to treat physical systems described by a finite space of states which exhibit spin tunneling effects. This particular approach is t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d6d31722b84c9ea99f0f7d42be26d5c
Autor:
Diógenes Galetti, Evandro C. Silva
Spin tunneling in the particular case of the magnetic molecular cluster octanuclear iron(III), Fe8, is treated by an effective Hamiltonian that allows for an angle-based description of the process. The presence of an external magnetic field along the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d808fe6443fb75c7d5fc1b00718aa07
Autor:
Evandro C. Silva, Diógenes Galetti
Publikováno v:
Journal of Physics A: Mathematical and Theoretical. 42:135302
A discrete quantum phase space formalism is used to discuss some basic aspects of the spin tunnelling which occurs in Fe8 magnetic clusters by means of Wigner functions as well as Husimi distributions. Those functions were obtained for sharp angle st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c18c170e17c431180c087fafb96eb0a5
https://doi.org/10.1088/1751-8113/42/13/135302
https://doi.org/10.1088/1751-8113/42/13/135302