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Publikováno v:
Parallel Processing and Applied Mathematics ISBN: 9783319780535
PPAM (2)
PPAM (2)
The description of the numerical method of simulation based on the quantum transfer-matrix (QTM) approach is presented for diluted spin \(S=1/2\) chains. Modification of the extrapolation technique has been used to obtain better accuracy of numerical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1c68c956cc2b9d23ec199cb0bea5467
https://doi.org/10.1007/978-3-319-78054-2_34
https://doi.org/10.1007/978-3-319-78054-2_34
Publikováno v:
Computer Physics Communications. 147:194-197
The numerical transfer-matrix approach and the exact diagonalization technique are worked out for the isotropic Heisenberg model with the uniform and alternating spin variables within the ring geometry. They are applied in large-scale simulations to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3278f44230bd0db1eb3867b6d0874a9e
https://doi.org/10.1016/s0010-4655(02)00243-6
https://doi.org/10.1016/s0010-4655(02)00243-6
Publikováno v:
Physical Review B. 94
The site-diluted compound (Yb$_{1-x}$Lu$_x$)$_4$As$_3$ is a scarce realization of the linear Heisenberg antiferromagnet partitioned into finite-size segments and is an ideal model compound for studying field-dependent effects of quenched disorder in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e891acbbee385c6bd630ffb4cc4a610a
https://doi.org/10.1103/physrevb.94.100403
https://doi.org/10.1103/physrevb.94.100403
Publikováno v:
Journal of Physics: Condensed Matter. 13:2017-2023
A numerical transfer-matrix approach and diagonalization technique exploiting the point-group symmetry are worked out in the framework of quantum statistical mechanics and group theory as exact simulation tools for application to thermodynamical prop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f37bfac95f18e064560a33d2f2b3d23
https://doi.org/10.1088/0953-8984/13/9/325
https://doi.org/10.1088/0953-8984/13/9/325
Publikováno v:
Inorganica Chimica Acta. 360:3955-3958
The experimental field-dependent specific heat of the polydomain pure Yb4As3 and diluted (Yb1−xLux)4As3 (x = 0.01, 0.03) systems is presented and compared with that calculated by the numerical quantum transfer-matrix method. The simulations have be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b0a54a8add094ba65b5bbdba9829287
https://doi.org/10.1016/j.ica.2007.06.015
https://doi.org/10.1016/j.ica.2007.06.015
Autor:
Grzegorz Kamieniarz, R. Matysiak
Publikováno v:
Journal of Computational and Applied Mathematics. 189(1-2):471-480
The deterministic quantum transfer-matrix (QTM) technique, its mathematical background, effectiveness and applicability to the real physical low-dimensional magnetic systems are presented. Modelling is based on the Heisenberg Hamiltonian which descri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c9f961b15ce13e9569ad66b44d203c4
Publikováno v:
Journal of Magnetism and Magnetic Materials. :353-356
The S = 1 2 antiferromagnetic Heisenberg model with the transverse staggered field and uniform magnetic field perpendicular to the staggered field is applied to the semimetallic compound Yb4As3. The field-dependent specific heat for infinite and fini
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57745bbc8e460bd55a3afa943c7ee77e
https://doi.org/10.1016/j.jmmm.2004.11.259
https://doi.org/10.1016/j.jmmm.2004.11.259