Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Kiamars Vafayi"'
Publikováno v:
Journal of Statistical Physics, 135(1), 25-55. Springer
In the context of Markov processes, both in discrete and continuous setting, we show a general relation between duality functions and symmetries of the generator. If the generator can be written in the form of a Hamiltonian of a quantum spin system,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47f1935fbc35989d58f827d87c198c74
https://doi.org/10.1007/s10955-009-9716-2
https://doi.org/10.1007/s10955-009-9716-2
Autor:
Manh Hong Duong, Kiamars Vafayi
Publikováno v:
Physical Review E-Statistical, Nonlinear, and Soft Matter Physics, 90, 052143/1-11. American Physical Society
We study close to equilibrium properties of the one-dimensional Symmetric Inclusion Process (SIP) by coupling it to two particle-reservoirs at the two boundaries with slightly different chemical potentials. The boundaries introduce irreversibility an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48b4bd8fd8ed8c07c79ad30a660b29f4
https://doi.org/10.1103/physreve.90.052143
https://doi.org/10.1103/physreve.90.052143
Publikováno v:
Electronic Journal of Probability, 18(66), 1-23. Institute of Mathematical Statistics
Electron. J. Probab.
Electron. J. Probab.
The inclusion process is a stochastic lattice gas, which is a natural bosonic counterpart of the well-studied exclusion process and has strong connections to models of heat conduction and applications in population genetics. Like the zero-range proce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95e3ce10c967581873bf6b69362640df
https://doi.org/10.1214/ejp.v18-2720
https://doi.org/10.1214/ejp.v18-2720
Autor:
Frank Redig, Kiamars Vafayi
Publikováno v:
Journal of Mathematical Physics, 52, 093303
Journal of Mathematical Physics, 52, 9, pp. 093303
Journal of Mathematical Physics, 52, 9, pp. 093303
We study the Brownian momentum process, a model of heat conduction, weakly coupled to heat baths. In two different settings of weak coupling to the heat baths, we study the non-equilibrium steady state and its proximity to the local equilibrium measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7337f101f145240572329f50fce8b25e
Publikováno v:
Journal of Statistical Physics, 141, 2, pp. 242-263
Journal of Statistical Physics, 141, 242-263
Journal of Statistical Physics, 141, 242-263
We prove a comparison inequality between a system of independent random walkers and a system of random walkers which either interact by attracting each other—a process which we call here the symmetric inclusion process (SIP)—or repel each other
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed45065b3bcd23bbac3308078d66bf07
https://hdl.handle.net/2066/83659
https://hdl.handle.net/2066/83659
Autor:
Kiamars Vafayi, Olle Gunnarsson
Publikováno v:
Physical Review B. 76
We present a method for performing analytical continuation of spectral data from imaginary time to real frequencies based on a statistical sampling method. Compared with the maximum entropy method (MEM), an advantage is that no default model needs to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d69ab53cca3e86f1b2fb7ec1dfb7b447
https://doi.org/10.1103/physrevb.76.035115
https://doi.org/10.1103/physrevb.76.035115
Publikováno v:
Physical Review B. 74
We study the electronic part of the thermal conductivity kappa of metals. We present two methods for calculating kappa, a quantum Monte-Carlo (QMC) method and a method where the phonons but not the electrons are treated semiclassically (SC). We compa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edcdd44d34529a31b82be96bd496a3ee
https://doi.org/10.1103/physrevb.74.235116
https://doi.org/10.1103/physrevb.74.235116
Publikováno v:
Journal of Mathematical Physics, 55(9), 093301/1-19. American Institute of Physics
We consider three one-dimensional continuous-time Markov processes on a lattice, each of which models the conduction of heat: the family of Brownian Energy Processes with parameter $m$, a Generalized Brownian Energy Process, and the Kipnis-Marchioro-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5bb82dd2c53a3073787ec45b69c1e668
https://doi.org/10.1063/1.4894139
https://doi.org/10.1063/1.4894139