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Testing algorithms for critical slowing down

Testing algorithms for critical slowing down
Testing algorithms for critical slowing down

We present the preliminary tests on two modifications of the Hybrid Monte Carlo (HMC) algorithm. Both algorithms are designed to travel much farther in the Hamiltonian phase space for each trajectory and reduce the autocorrelations among physical observables thus tackling the critical slowing down towards the continuum limit. We present a comparison of costs of the new algorithms with the standard HMC evolution for pure gauge fields, studying the autocorrelation times for various quantities including the topological charge.

2101-6275
Cossu, Guido
d09be903-90c4-40c9-9fe1-f416f5dc15ce
Boyle, Peter
78a2aebf-aea7-4925-b5df-ead4b4da6fb2
Christ, Norman
8fdea364-b83b-4aef-8282-c02a48689d37
Jung, Chulwoo
988a6b9a-70c6-4d4d-b8da-9a864d228e87
Jüttner, Andreas
a90ff7c5-ae8f-4c8e-9679-b5a95b2a6247
Sanfilippo, Francesco
14276d98-365a-4c37-a808-f4e9aff31fdc
Cossu, Guido
d09be903-90c4-40c9-9fe1-f416f5dc15ce
Boyle, Peter
78a2aebf-aea7-4925-b5df-ead4b4da6fb2
Christ, Norman
8fdea364-b83b-4aef-8282-c02a48689d37
Jung, Chulwoo
988a6b9a-70c6-4d4d-b8da-9a864d228e87
Jüttner, Andreas
a90ff7c5-ae8f-4c8e-9679-b5a95b2a6247
Sanfilippo, Francesco
14276d98-365a-4c37-a808-f4e9aff31fdc

Cossu, Guido, Boyle, Peter, Christ, Norman, Jung, Chulwoo, Jüttner, Andreas and Sanfilippo, Francesco (2018) Testing algorithms for critical slowing down. EPJ Web of Conferences, 175. (doi:10.1051/epjconf/201817502008).

Record type: Article

Abstract

We present the preliminary tests on two modifications of the Hybrid Monte Carlo (HMC) algorithm. Both algorithms are designed to travel much farther in the Hamiltonian phase space for each trajectory and reduce the autocorrelations among physical observables thus tackling the critical slowing down towards the continuum limit. We present a comparison of costs of the new algorithms with the standard HMC evolution for pure gauge fields, studying the autocorrelation times for various quantities including the topological charge.

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e-pub ahead of print date: 26 March 2018
Published date: 26 March 2018

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Local EPrints ID: 420065
URI: https://eprints.soton.ac.uk/id/eprint/420065
ISSN: 2101-6275
PURE UUID: 7b6baf2b-9ec6-47d1-b726-ec8df04e99d0

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Date deposited: 26 Apr 2018 16:30
Last modified: 14 Aug 2019 16:55

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