2026-06-27T11:08:56Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/521942023-08-25T11:01:55Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Calabrese, Pasquale
author
Martín Mayor, Víctor
author
Pelissetto, Andrea
author
Vicari, Ettore
2023-06-20T12:40:49Z
2023-06-20T12:40:49Z
2003-07-11
1539-3755
10.1103/PhysRevE.68.016110
https://hdl.handle.net/20.500.14352/52194
http://dx.doi.org/10.1103/PhysRevE.68.016110
https://journals.aps.org
We compute the dynamic structure factor for the three-dimensional Ising model with a purely relaxational dynamics (model A). We perform a perturbative calculation in the e expansion, at two loops in the high temperature phase and at one loop in the temperature magnetic-field plane, and a Monte Carlo simulation in the high-temperature phase. We find that the dynamic structure factor is very well approximated by its mean-field Gaussian form up to moderately large values of frequency ω and momentum k. In the region we can investigate, kξ≤5, ωϮ≤10, where ξ is the correlation length and Ϯ is the zero-momentum autocorrelation time, deviations are at most of a few percent.
eng
Dynamic structure factor of the three-dimensional Ising model with purely relaxational dynamics
journal article
URL
https://docta.ucm.es/bitstreams/18218c02-b931-4618-865c-01f3341e7446/download
File
MD5
6ab3045d691f00dfa4f256fb29376499
211499
application/pdf
MartínMayorV LIBRE 22.pdf
URL
https://docta.ucm.es/bitstreams/e808fe4e-faad-4668-99fa-be9344b9c5c9/download
File
MD5
8723ab071a7991266f1c7c02079f5f3f
42415
text/plain
MartínMayorV LIBRE 22.pdf.txt