Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Ch. Uma Lavanya"'
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
Abstract The Holstein-Hubbard model with Gaussian phonon anharmonicity is studied in one-dimension at half filling using a variational method based on a series of canonical transformations. A fairly accurate phonon state is chosen to average the tran
Externí odkaz:
https://doaj.org/article/71592300d934439b9147a0be39535dfd
Autor:
Ashok Chatterjee, Ch. Uma Lavanya
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 126:114500
The persistent charge and spin currents are studied by considering the Holstein-Hubbard model for one dimensional mesoscopic ring. Conventional Lang-Firsov transformation is used to eliminate the phonon coordinates and then the zero phonon state is a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d3d2118c7e870224997711966cd6a96
https://doi.org/10.1016/j.physe.2020.114500
https://doi.org/10.1016/j.physe.2020.114500
Autor:
Ashok Chatterjee, Ch. Uma Lavanya
Publikováno v:
AIP Conference Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be75969b43e6c61b63f0f58d06f91603
https://doi.org/10.1063/1.5028918
https://doi.org/10.1063/1.5028918
Publikováno v:
Scientific Reports
Scientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
Scientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
The Holstein-Hubbard model with Gaussian phonon anharmonicity is studied in one-dimension at half filling using a variational method based on a series of canonical transformations. A fairly accurate phonon state is chosen to average the transformed H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd2cc8a7bcbe584d98741a01971c277f
http://europepmc.org/articles/PMC5476603
http://europepmc.org/articles/PMC5476603
Autor:
Ch. Uma Lavanya, Ashok Chatterjee
Publikováno v:
AIP Conference Proceedings.
The Holstein-Hubbard model(HHM) with Gaussian anharmonicityis studied at half filling in one-dimension using a variational method based on a series of canonical transformations. It is shown that the anharmonicityincreases the width of the intermediat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09f08645b58378ef1c15a4d80a95e3c5
https://doi.org/10.1063/1.4946528
https://doi.org/10.1063/1.4946528
Conference
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