Forskning ved Københavns Universitet - Københavns Universitet

Forside

Dynamical TAP equations for non-equilibrium Ising spin glasses

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

  • Yasser Roudi
  • John Hertz
We derive and study dynamical TAP equations for Ising spin glasses obeying both synchronous and asynchronous dynamics using a generating functional approach. The system can have an asymmetric coupling matrix, and the external fields can be time-dependent. In the synchronously updated model, the TAP equations take the form of self consistent equations for magnetizations at time t+1, given the magnetizations at time t. In the asynchronously updated model, the TAP equations determine the time derivatives of the magnetizations at each time, again via self consistent equations, given the current values of the magnetizations. Numerical simulations suggest that the TAP equations become exact for large systems.
OriginalsprogEngelsk
TidsskriftJournal of Statistical Mechanics: Theory and Experiment
Vol/bind2011
Udgave nummer3
Sider (fra-til)P03031
Antal sider18
ISSN1742-5468
DOI
StatusUdgivet - 31 mar. 2011

ID: 37388372