Mostra el registre d'ítem simple
High-order time expansion path integral ground state
dc.contributor.author | Rota, Riccardo |
dc.contributor.author | Casulleras Ambrós, Joaquín |
dc.contributor.author | Mazzanti Castrillejo, Fernando Pablo |
dc.contributor.author | Boronat Medico, Jordi |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear |
dc.date.accessioned | 2010-06-28T10:05:07Z |
dc.date.available | 2010-06-28T10:05:07Z |
dc.date.created | 2010-01 |
dc.date.issued | 2010-01 |
dc.identifier.citation | Rota, R. [et al.]. High-order time expansion path integral ground state. "Physical review E: statistical, nonlinear, and soft matter physics", Gener 2010, vol. 81, núm. 1, p. 6707. |
dc.identifier.issn | 1539-3755 |
dc.identifier.uri | http://hdl.handle.net/2117/7860 |
dc.description.abstract | The feasibility of path integral Monte Carlo ground state calculations with very few beads using a high-order short-time Green’s function expansion is discussed. An explicit expression of the evolution operator which provides dramatic enhancements in the quality of ground-state wave functions is examined. The efficiency of the method makes possible to remove the trial wave function and thus obtain completely model-independent results still with a very small number of beads. If a single iteration of the method is used to improve a given model wave function, the result is invariably a shadow-type wave function, whose precise content is provided by the high-order algorithm employed. |
dc.format.extent | 1 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Informàtica::Aplicacions de la informàtica::Aplicacions informàtiques a la física i l‘enginyeria |
dc.subject.lcsh | Computational methods in applied sciences |
dc.title | High-order time expansion path integral ground state |
dc.type | Article |
dc.subject.lemac | Física -- Mètodes de simulació |
dc.contributor.group | Universitat Politècnica de Catalunya. SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity |
dc.identifier.doi | 10.1103/PhysRevE.81.016707 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://adsabs.harvard.edu/abs/2010PhRvE..81a6707R |
dc.rights.access | Open Access |
local.identifier.drac | 2178486 |
dc.description.version | Postprint (published version) |
local.citation.author | Rota, R.; Casulleras, J.; Mazzanti, F.; Boronat, J. |
local.citation.publicationName | Physical review E: statistical, nonlinear, and soft matter physics |
local.citation.volume | 81 |
local.citation.number | 1 |
local.citation.startingPage | 6707 |
local.citation.endingPage | 6707 |
Fitxers d'aquest items
Aquest ítem apareix a les col·leccions següents
-
Articles de revista [603]
-
Articles de revista [383]