Testing convergence of different free-energy methods in a simple analytical system with hidden barriers
- Autores
- Paz, Sergio Alexis; Abrams, Cameron
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In this work, we study the influence of hidden barriers on the convergence behavior of three free-energy calculation methods: well-tempered metadynamics (WTMD), adaptive-biasing forces (ABF), and on-the-fly parameterization (OTFP). We construct a simple two-dimensional potential-energy surfaces (PES) that allows for an exact analytical result for the free-energy in any one-dimensional order parameter. Then we chose different CV definitions and PES parameters to create three different systems with increasing sampling challenges. We find that all three methods are not greatly affected by the hidden-barriers in the simplest case considered. The adaptive sampling methods show faster sampling while the auxiliary high-friction requirement of OTFP makes it slower for this case. However, a slight change in the CV definition has a strong impact in the ABF and WTMD performance, illustrating the importance of choosing suitable collective variables.
Fil: Paz, Sergio Alexis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Cs.químicas. Departamento de Química Teórica y Computacional; Argentina
Fil: Abrams, Cameron. Drexel University; Estados Unidos - Materia
-
ADAPTIVE-BIASING FORCE ALGORITHM
METADYNAMICS
MOLECULAR DYNAMICS
ON-THE-FLY PARAMETERIZATION
TEMPERATUREACCELERATION - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/86336
Ver los metadatos del registro completo
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Testing convergence of different free-energy methods in a simple analytical system with hidden barriersPaz, Sergio AlexisAbrams, CameronADAPTIVE-BIASING FORCE ALGORITHMMETADYNAMICSMOLECULAR DYNAMICSON-THE-FLY PARAMETERIZATIONTEMPERATUREACCELERATIONhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In this work, we study the influence of hidden barriers on the convergence behavior of three free-energy calculation methods: well-tempered metadynamics (WTMD), adaptive-biasing forces (ABF), and on-the-fly parameterization (OTFP). We construct a simple two-dimensional potential-energy surfaces (PES) that allows for an exact analytical result for the free-energy in any one-dimensional order parameter. Then we chose different CV definitions and PES parameters to create three different systems with increasing sampling challenges. We find that all three methods are not greatly affected by the hidden-barriers in the simplest case considered. The adaptive sampling methods show faster sampling while the auxiliary high-friction requirement of OTFP makes it slower for this case. However, a slight change in the CV definition has a strong impact in the ABF and WTMD performance, illustrating the importance of choosing suitable collective variables.Fil: Paz, Sergio Alexis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Cs.químicas. Departamento de Química Teórica y Computacional; ArgentinaFil: Abrams, Cameron. Drexel University; Estados UnidosMDPI Multidisciplinary Digital Publishing Institute2018-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/86336Paz, Sergio Alexis; Abrams, Cameron; Testing convergence of different free-energy methods in a simple analytical system with hidden barriers; MDPI Multidisciplinary Digital Publishing Institute; Computation; 6; 2; 3-20182079-3197CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.mdpi.com/2079-3197/6/2/27info:eu-repo/semantics/altIdentifier/doi/10.3390/computation6020027info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:39:33Zoai:ri.conicet.gov.ar:11336/86336instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:39:33.276CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Testing convergence of different free-energy methods in a simple analytical system with hidden barriers |
title |
Testing convergence of different free-energy methods in a simple analytical system with hidden barriers |
spellingShingle |
Testing convergence of different free-energy methods in a simple analytical system with hidden barriers Paz, Sergio Alexis ADAPTIVE-BIASING FORCE ALGORITHM METADYNAMICS MOLECULAR DYNAMICS ON-THE-FLY PARAMETERIZATION TEMPERATUREACCELERATION |
title_short |
Testing convergence of different free-energy methods in a simple analytical system with hidden barriers |
title_full |
Testing convergence of different free-energy methods in a simple analytical system with hidden barriers |
title_fullStr |
Testing convergence of different free-energy methods in a simple analytical system with hidden barriers |
title_full_unstemmed |
Testing convergence of different free-energy methods in a simple analytical system with hidden barriers |
title_sort |
Testing convergence of different free-energy methods in a simple analytical system with hidden barriers |
dc.creator.none.fl_str_mv |
Paz, Sergio Alexis Abrams, Cameron |
author |
Paz, Sergio Alexis |
author_facet |
Paz, Sergio Alexis Abrams, Cameron |
author_role |
author |
author2 |
Abrams, Cameron |
author2_role |
author |
dc.subject.none.fl_str_mv |
ADAPTIVE-BIASING FORCE ALGORITHM METADYNAMICS MOLECULAR DYNAMICS ON-THE-FLY PARAMETERIZATION TEMPERATUREACCELERATION |
topic |
ADAPTIVE-BIASING FORCE ALGORITHM METADYNAMICS MOLECULAR DYNAMICS ON-THE-FLY PARAMETERIZATION TEMPERATUREACCELERATION |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
In this work, we study the influence of hidden barriers on the convergence behavior of three free-energy calculation methods: well-tempered metadynamics (WTMD), adaptive-biasing forces (ABF), and on-the-fly parameterization (OTFP). We construct a simple two-dimensional potential-energy surfaces (PES) that allows for an exact analytical result for the free-energy in any one-dimensional order parameter. Then we chose different CV definitions and PES parameters to create three different systems with increasing sampling challenges. We find that all three methods are not greatly affected by the hidden-barriers in the simplest case considered. The adaptive sampling methods show faster sampling while the auxiliary high-friction requirement of OTFP makes it slower for this case. However, a slight change in the CV definition has a strong impact in the ABF and WTMD performance, illustrating the importance of choosing suitable collective variables. Fil: Paz, Sergio Alexis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Cs.químicas. Departamento de Química Teórica y Computacional; Argentina Fil: Abrams, Cameron. Drexel University; Estados Unidos |
description |
In this work, we study the influence of hidden barriers on the convergence behavior of three free-energy calculation methods: well-tempered metadynamics (WTMD), adaptive-biasing forces (ABF), and on-the-fly parameterization (OTFP). We construct a simple two-dimensional potential-energy surfaces (PES) that allows for an exact analytical result for the free-energy in any one-dimensional order parameter. Then we chose different CV definitions and PES parameters to create three different systems with increasing sampling challenges. We find that all three methods are not greatly affected by the hidden-barriers in the simplest case considered. The adaptive sampling methods show faster sampling while the auxiliary high-friction requirement of OTFP makes it slower for this case. However, a slight change in the CV definition has a strong impact in the ABF and WTMD performance, illustrating the importance of choosing suitable collective variables. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-03 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/86336 Paz, Sergio Alexis; Abrams, Cameron; Testing convergence of different free-energy methods in a simple analytical system with hidden barriers; MDPI Multidisciplinary Digital Publishing Institute; Computation; 6; 2; 3-2018 2079-3197 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/86336 |
identifier_str_mv |
Paz, Sergio Alexis; Abrams, Cameron; Testing convergence of different free-energy methods in a simple analytical system with hidden barriers; MDPI Multidisciplinary Digital Publishing Institute; Computation; 6; 2; 3-2018 2079-3197 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.mdpi.com/2079-3197/6/2/27 info:eu-repo/semantics/altIdentifier/doi/10.3390/computation6020027 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
MDPI Multidisciplinary Digital Publishing Institute |
publisher.none.fl_str_mv |
MDPI Multidisciplinary Digital Publishing Institute |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |