Zobrazeno 1 - 10
of 364
pro vyhledávání: '"Miki Wadati"'
Autor:
Miki Wadati, Toshiaki Kaminaka
Publikováno v:
Physics Letters A. 375:2460-2464
We study higher order solutions of Lieb–Liniger integral equation for a one-dimensional δ -function Bose gas. By use of the power series expansion method, the integral equation is solved and the correction terms which improve the Bogoliubov theory
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25059c011f8e808485c06f5bd0035dd8
https://doi.org/10.1016/j.physleta.2011.05.026
https://doi.org/10.1016/j.physleta.2011.05.026
Publikováno v:
Physics Letters A. 374:3685-3694
We investigate the coupled Gross–Pitaevskii equation describing the dynamics of two hyperfine states of Bose–Einstein condensates and deduce the integrability condition for the propagation of bright vector solitons. We show how the transient trap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac66903d7ba855e120f07be0997a4877
https://doi.org/10.1016/j.physleta.2010.07.016
https://doi.org/10.1016/j.physleta.2010.07.016
Autor:
Miki Wadati
Publikováno v:
The European Physical Journal Special Topics. 173:223-232
One-dimensional pulse propagations in the electromagnetically induced media are investigated. The Maxwell-Bloch equations for a three-level medium are simplified with the approximations of slowly varying amplitudes, negligible irreversible relaxation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2eb809cf3ddf729dc184222a1b8af33
https://doi.org/10.1140/epjst/e2009-01075-9
https://doi.org/10.1140/epjst/e2009-01075-9
Autor:
T. Iida, Miki Wadati
Publikováno v:
Laser Physics. 19:664-672
We investigate the ground-state properties of a one-dimensional spin-1/2 fermionic atoms interacting through the attractive δ-function potential in an external magnetic field. By the thermal Bethe ansatz method, the integral equations for the dresse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66385f01e07de0e483ec256486942bf1
https://doi.org/10.1134/s1054660x09040215
https://doi.org/10.1134/s1054660x09040215
Publikováno v:
Physics Letters A. 372:4067-4075
The dispersion properties of three-dimensional electrostatic waves in a nonuniform electron-positron (EP) magnetoplasma are analyzed. A new dispersion relation is derived by use of the electron and positron density responses arising from the electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ee0bba5005a45c4a5858bef3215a0e5
https://doi.org/10.1016/j.physleta.2008.03.024
https://doi.org/10.1016/j.physleta.2008.03.024
Publikováno v:
Journal of Low Temperature Physics. 148:399-404
We review the recently studied soliton dynamics of the hyperfine spin F=1 spinor Bose–Einstein condensate in a one-dimensional uniform system. The characters of one-soliton states and the behavior of two-soliton collision are briefly described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86013b4a1e1318ecfadc9f3c5eb7eddc
https://doi.org/10.1007/s10909-007-9397-7
https://doi.org/10.1007/s10909-007-9397-7
Autor:
Jun'ichi Ieda, Miki Wadati
Publikováno v:
Journal of Low Temperature Physics. 148:405-410
Nonlinear wave propagations in spinor Bose–Einstein condensates confined strongly along an axial direction are studied. Due to the confinement induced effects, there exist a variety of soliton solutions with the magnetic properties.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b020328cc2e71ab59f26e1bc19e773c6
https://doi.org/10.1007/s10909-007-9412-z
https://doi.org/10.1007/s10909-007-9412-z
Exact Analysis of a One-Dimensional Attractive δ-Function Fermi Gas with Arbitrary Spin Polarization
Autor:
Toshiaki Iida, Miki Wadati
Publikováno v:
Journal of Low Temperature Physics. 148:417-422
We study a one-dimensional integrable system of N spin-1/2 fermions with attractive δ-function interaction at zero temperature. The Gaudin integral equation describing the ground state with arbitrary spin polarization is solved in the form of power
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::941508947f7b981d42c1cad4f1388bfb
https://doi.org/10.1007/s10909-007-9409-7
https://doi.org/10.1007/s10909-007-9409-7
Autor:
Miki Wadati, Hisataka Kato
Publikováno v:
Chaos, Solitons & Fractals. 32:1250-1257
We study the conformational properties of single polymer chain both with and without electric charge. We propose a new method by considering the conformational properties of single polymer chain. In stead of traditional approaches, we introduce the d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b428ab0ecebf74a15d8924986aae8c0
https://doi.org/10.1016/j.chaos.2005.11.084
https://doi.org/10.1016/j.chaos.2005.11.084
Publikováno v:
Journal of the Physical Society of Japan. 73:2996-3007
Following our previous work [J. Ieda, T. Miyakawa, M. Wadati, cond-mat/0404569] on a novel integrable model describing soliton dynamics of an F=1 spinor Bose--Einstein condensate, we discuss in detail the properties of the multi-component system with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b89c6e51e3027f4317c88d3e804404a
https://doi.org/10.1143/jpsj.73.2996
https://doi.org/10.1143/jpsj.73.2996