Zobrazeno 1 - 10
of 22
pro vyhledávání: '"N M Bogolyubov"'
Autor:
N M Bogolyubov, C L Malyshev
Publikováno v:
Russian Mathematical Surveys. 70:789-856
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a758e6db0e5766c905e66f9d8c192185
https://doi.org/10.1070/rm2015v070n05abeh004964
https://doi.org/10.1070/rm2015v070n05abeh004964
Autor:
N. M. Bogolyubov
Publikováno v:
St. Petersburg Mathematical Journal. 21:407-421
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28d203c838e4f5e89cd34b24f79ee258
https://doi.org/10.1090/s1061-0022-10-01100-3
https://doi.org/10.1090/s1061-0022-10-01100-3
Autor:
R. K. Bullough, C. Malyshev, V. S. Kapitonov, M. Lindberg, Jussi Timonen, Andrei Rybin, G. G. Varzugin, N. M. Bogolyubov
Publikováno v:
Theoretical and Mathematical Physics. 134:47-61
We evaluate finite-temperature equilibrium correlators $$\langle T_\tau \hat \psi ({\text{r}}_{\text{1}} )\hat \psi ^\dag ({\text{r}}_{\text{2}} )\rangle $$ for thermal time τ ordered Bose fields $$\hat \psi ,{\text{ }}\hat \psi ^\dag $$ to good app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::670ca889927330f8471c3b9b1a870d82
https://doi.org/10.1023/a:1021815606105
https://doi.org/10.1023/a:1021815606105
Publikováno v:
Journal of Mathematical Sciences. 115:1960-1963
Horizontal-arrow fluctuations near the boundaries in the six-vertex model with domain-wall boundary conditions are considered. For these fluctuations, a representation in terms of the standard objects of the theory of orthogonal polynomials is obtain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00d4c2e5294ea70614f8ad0aefec3397
https://doi.org/10.1023/a:1022691527507
https://doi.org/10.1023/a:1022691527507
Autor:
N. M. Bogolyubov
Publikováno v:
Journal of Mathematical Sciences. 104:1097-1104
The non-Hermitian integrable models with q-bosons as the dynamical variables are considered. It is shown that the exponential phase operators are special limits of the q-bosons. The phase-differences model is introduced and studied in connection with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02211a5b9bd48a877c919a4f80ceea10
https://doi.org/10.1023/a:1011384504120
https://doi.org/10.1023/a:1011384504120
Autor:
N. M. Bogolyubov
Publikováno v:
Journal of Mathematical Sciences. 100:2051-2060
The N-atom-radiation-field model is solved for its eigenvalues and eigenstates by the algebraic Bethe ansatz. The eigenenergies and the amplitudes of the wave functions are expressed in terms of the solutions of the Bethe equations. The determinant r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::167b6908a1fd44b0f6403b4f6724f3d4
https://doi.org/10.1007/bf02675727
https://doi.org/10.1007/bf02675727
Publikováno v:
Scopus-Elsevier
The time-dependent quantum Hamiltonians $$\hat H\left( t \right) = \left\{ {\begin{array}{*{20}c} {\hat H,t_i< t< t_i + t_{int} } \\ {\omega _0 \hat N,t_i + t_{int}< t< t_i + 1,} \\ \end{array} } \right.$$ describe a maser with N two-level atoms coup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::911d7028bfda62d7c26d16a130562a7d
https://doi.org/10.1007/bf02551193
https://doi.org/10.1007/bf02551193
Autor:
N. M. Bogolyubov
Publikováno v:
Journal of Mathematical Sciences. 88:185-189
A model of three bound boson oscillators with Stark nonlinearity is introduced and solved by the quantum inverse scattering method. For the trilinear oscillator, the eigenvalue problem is reduced to the spectral problem for the second-order homogeneo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cccbcd3506f2b1639d2685be3a759f54
https://doi.org/10.1007/bf02364979
https://doi.org/10.1007/bf02364979
Autor:
N. M. Bogolyubov
Publikováno v:
Journal of Soviet Mathematics. 62:2955-2963
The free energy in the vicinity of a half-filled band for the one-dimensional Hubbard model with attraction is calculated as a function of density (chemical potential). The expansion of the elementary excitation energies for a lattice of finite lengt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee3ee39ae4ea45a4e81d375459cf8592
https://doi.org/10.1007/bf01097495
https://doi.org/10.1007/bf01097495
Autor:
Vladimir E. Korepin, N. M. Bogolyubov
Publikováno v:
Theoretical and Mathematical Physics. 82:231-243
We have investigated the critical behavior of the Hubbard model with attraction. To investigate the critical behavior of the model with repulsion, it is sufficient to use a unitary electron-hole transformation [3,8], and then the SCP correlation func
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f851b94da56df2613c256de140825334
https://doi.org/10.1007/bf01029216
https://doi.org/10.1007/bf01029216