caa a22 4500 445391235 CHVBK 20180317143047.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10955-011-0261-4 doi (NATIONALLICENCE)springer-10.1007/s10955-011-0261-4 Tethered Monte Carlo: Managing Rugged Free-Energy Landscapes with a Helmholtz-Potential Formalism [Elektronische Daten] [V. Martin-Mayor, B. Seoane, D. Yllanes] Tethering methods allow us to perform Monte Carlo simulations in ensembles with conserved quantities. Specifically, one couples a reservoir to the physical magnitude of interest, and studies the statistical ensemble where the total magnitude (system+reservoir) is conserved. The reservoir is actually integrated out, which leaves us with a fluctuation-dissipation formalism that allows us to recover the appropriate Helmholtz effective potential with great accuracy. These methods are demonstrating a remarkable flexibility. In fact, we illustrate two very different applications: hard spheres crystallization and the phase transition of the diluted antiferromagnet in a field (the physical realization of the random field Ising model). The tethered approach holds the promise to transform cartoon drawings of corrugated free-energy landscapes into real computations. Besides, it reduces the algorithmic dynamic slowing-down, probably because the conservation law holds non-locally. Springer Science+Business Media, LLC, 2011 Monte Carlo methods nationallicence Barriers nationallicence Effective potential nationallicence Martin-Mayor V. Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Zaragoza, Spain aut Seoane B. Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Zaragoza, Spain aut Yllanes D. Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Zaragoza, Spain aut Journal of Statistical Physics Springer US; http://www.springer-ny.com 144/3(2011-08-01), 554-596 0022-4715 144:3<554 2011 144 10955 https://doi.org/10.1007/s10955-011-0261-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10955-011-0261-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Martin-Mayor V. Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Zaragoza, Spain aut NATIONALLICENCE 700 1- Seoane B. Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Zaragoza, Spain aut NATIONALLICENCE 700 1- Yllanes D. Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Zaragoza, Spain aut NATIONALLICENCE 773 0- Journal of Statistical Physics Springer US; http://www.springer-ny.com 144/3(2011-08-01), 554-596 0022-4715 144:3<554 2011 144 10955 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer