RT Journal Article
T1 Dynamic structure factor of the three-dimensional Ising model with purely relaxational dynamics
A1 Calabrese, Pasquale
A1 Martín Mayor, Víctor
A1 Pelissetto, Andrea
A1 Vicari, Ettore
AB 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.
PB American Physical Society
SN 1539-3755
YR 2003
FD 2003-07-11
LK https://hdl.handle.net/20.500.14352/52194
UL https://hdl.handle.net/20.500.14352/52194
LA eng
NO © 2003 The American Physical Society. This work was partly supported by MCyT (Spain), Project Nos. FPA2001-1813 and FPA2000-0956.
NO MCyT (Spain)
DS Docta Complutense
RD 15 may 2024