Sökning: WFRF:(Oppelstrup Tomas 1977 ) >
First-Passage Kinet...
-
Oppelstrup, Tomas,1977-KTH,Numerisk Analys och Datalogi, NADA
(författare)
First-Passage Kinetic Monte Carlo method
- Artikel/kapitelEngelska2009
Förlag, utgivningsår, omfång ...
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:kth-11570
-
https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11570URI
-
https://doi.org/10.1103/PhysRevE.80.066701DOI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:art swepub-publicationtype
Anmärkningar
-
Uppdaterad från manuskript till artikel: 20100805 QC 20100805
-
We present a new effcient method for Monte Carlo simulations of diusion-reaction processes. First introduced by us in [Phys. Rev. Lett., 97:230602, 2006], the new algorithm skips the traditionalsmall diusion hops and propagates the diusing particles over long distances through asequence of super-hops, one particle at a time. By partitioning the simulation space into nonoverlappingprotecting domains each containing only one or two particles, the algorithm factorizesthe N-body problem of collisions among multiple Brownian particles into a set of much simplersingle-body and two-body problems. Ecient propagation of particles inside their protective domainsis enabled through the use of time-dependent Green's functions (propagators) obtained assolutions for the rst-passage statistics of random walks. The resulting Monte Carlo algorithmis event-driven and asynchronous; each Brownian particle propagates inside its own protectivedomain and on its own time clock. The algorithm reproduces the statistics of the underlyingMonte-Carlo model exactly. Extensive numerical examples demonstrate that for an importantclass of diusion-reaction models the new algorithm is effcient at low particle densities, whereother existing algorithms slow down severely.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Bulatov, Vasily V.
(författare)
-
Donev, Aleksandar
(författare)
-
Kalos, Malvin H.
(författare)
-
Gilmer, George H.
(författare)
-
Sadigh, BabakKTH,Fysik(Swepub:kth)u1n1so6o
(författare)
-
KTHNumerisk Analys och Datalogi, NADA
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Physical Review E. Statistical, Nonlinear, and Soft Matter Physics80:6, s. 066701-1063-651X1095-3787
Internetlänk
Hitta via bibliotek
Till lärosätets databas