Zobrazeno 1 - 10
of 70
pro vyhledávání: '"A. G. Izergin"'
Publikováno v:
Journal of Mathematical Sciences. 115:2002-2008
The XX0 chain in the external magnetic field directed along the z axis is discussed. The Hamiltonian describing the exchange interaction between two and four neighboring sites of the chain is constructed. An integral representation for the equal-time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60a42266171b9dafa765592955d5818c
https://doi.org/10.1023/a:1022603930233
https://doi.org/10.1023/a:1022603930233
Publikováno v:
Physical Review Letters. 86:4439-4442
An effective boson Hamiltonian applicable to atomic beam splitters, coupled Bose-Einstein condensates, and optical lattices can be made exactly solvable by including all $n$-body interactions. The model can include an arbitrary number of boson compon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80b9c46f032e87b87471481584e4bc17
https://doi.org/10.1103/physrevlett.86.4439
https://doi.org/10.1103/physrevlett.86.4439
Publikováno v:
Journal of Mathematical Sciences. 104:1087-1096
Temperature and time dependent correlation functions of the spin―-1/2 ladder model with infinitely strong coupling are calculated. Bibliography: 34 titles.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ddb64bc33b80e6450d1d9065f20fadc
https://doi.org/10.1023/a:1011324220050
https://doi.org/10.1023/a:1011324220050
Publikováno v:
International Journal of Modern Physics B. 12:2409-2433
We consider the one-dimensional delta-interacting electron gas in the case of infinite repulsion. We use determinant representations to study the long time, large distance asymptotics of correlation functions of local fields in the gas phase. We deri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3203fe36cd62e1f529733722f154e16e
https://doi.org/10.1142/s0217979298001411
https://doi.org/10.1142/s0217979298001411
Publikováno v:
Scopus-Elsevier
The correlation functions for a strongly correlated exactly solvable one-dimensional boson system on a finite chain as well as in the thermodynamic limit are calculated explicitly. This system which we call the phase model is the strong coupling limi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c21591d37bfd446049b22b5cb4bdca74
https://doi.org/10.1016/s0550-3213(98)00038-8
https://doi.org/10.1016/s0550-3213(98)00038-8
Publikováno v:
Journal of Mathematical Sciences. 88:224-232
New determinant representations are obtained for the simplest correlation functions of the Heisenberg XY spin chain. Bibliography: 8 titles.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc6b6b0dddfa472155a973c5d90d1cd6
https://doi.org/10.1007/bf02364983
https://doi.org/10.1007/bf02364983
Publikováno v:
Scopus-Elsevier
We introduce the phase model on a lattice and solve it using the algebraic Bethe ansatz. Time-dependent temperature correlation functions of phase operators and the "darkness formation probability" are calculated in the thermodynamical limit. These r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0552ab82c25ae250abda2d6e0c8cdd70
https://doi.org/10.1016/s0375-9601(97)00326-5
https://doi.org/10.1016/s0375-9601(97)00326-5
Publikováno v:
Journal of Physics A: Mathematical and General. 30:361-370
The spectral shape of one-dimensional systems (describing for instance the behaviour of Frenkel excitons) is approached through the exactly solvable model of the XXO Heisenberg quantum spin chain in a transverse magnetic field. Some results for finit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ed0859af6f84c736e72ee719514a591
https://doi.org/10.1088/0305-4470/30/2/004
https://doi.org/10.1088/0305-4470/30/2/004
Publikováno v:
Journal of Mathematical Sciences. 80:1747-1759
It is shown that the two-point time-dependent temperature correlators of the XXO Heisenberg spin chain satisfy a system of classical equations in the distance between correlating spins and time. This system is an integrable lattice version of the non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5aacfd024a13524f00be4f96ddd03a9d
https://doi.org/10.1007/bf02362774
https://doi.org/10.1007/bf02362774
Publikováno v:
Theoretical and Mathematical Physics. 94:11-38
Space and time dependent correlation functions in the Heisenberg XX0 chain (in the transverse magnetic field) are expressed in terms of Fredholm determinants of linear integral operators. This is done in order to evaluate asymptotics of these correla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee6ac85133967a4407b2c1c3670b6a2f
https://doi.org/10.1007/bf01016992
https://doi.org/10.1007/bf01016992