Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Phiala E. Shanahan"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-23 (2024)
Abstract Ab-initio simulations of multiple heavy quarks propagating in a Quark-Gluon Plasma are computationally difficult to perform due to the large dimension of the space of density matrices. This work develops machine learning algorithms to overco
Externí odkaz:
https://doaj.org/article/ba9e1a6c094b4285a427b41d17563f44
Publikováno v:
Physical Review
This work develops neural-network--based preconditioners to accelerate solution of the Wilson-Dirac normal equation in lattice quantum field theories. The approach is implemented for the two-flavor lattice Schwinger model near the critical point. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::864b7adae34cf2ece23751d57b755868
https://doi.org/10.1103/physrevd.107.034508
https://doi.org/10.1103/physrevd.107.034508
Autor:
Ryan Abbott, Michael S. Albergo, Denis Boyda, Kyle Cranmer, Daniel C. Hackett, Gurtej Kanwar, Sébastien Racanière, Danilo J. Rezende, Fernando Romero-López, Phiala E. Shanahan, Betsy Tian, Julian M. Urban
Publikováno v:
Physical Review
This work presents gauge-equivariant architectures for flow-based sampling in fermionic lattice field theories using pseudofermions as stochastic estimators for the fermionic determinant. This is the default approach in state-of-the-art lattice field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a72eadee7f320bf32462ed19c653214
https://doi.org/10.1103/physrevd.106.074506
https://doi.org/10.1103/physrevd.106.074506
Autor:
Michael S. Albergo, Denis Boyda, Kyle Cranmer, Daniel C. Hackett, Gurtej Kanwar, Sébastien Racanière, Danilo J. Rezende, Fernando Romero-López, Phiala E. Shanahan, Julian M. Urban
Publikováno v:
Physical Review
Recent results suggest that flow-based algorithms may provide efficient sampling of field distributions for lattice field theory applications, such as studies of quantum chromodynamics and the Schwinger model. In this work, we provide a numerical dem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89a3d9ba0aaca8a6925826025b5faaa3
http://arxiv.org/abs/2202.11712
http://arxiv.org/abs/2202.11712
Autor:
Ingo Tews, Zohreh Davoudi, Andreas Ekström, Jason D. Holt, Kevin Becker, Raúl Briceño, David J. Dean, William Detmold, Christian Drischler, Thomas Duguet, Evgeny Epelbaum, Ashot Gasparyan, Jambul Gegelia, Jeremy R. Green, Harald W. Grießhammer, Andrew D. Hanlon, Matthias Heinz, Heiko Hergert, Martin Hoferichter, Marc Illa, David Kekejian, Alejandro Kievsky, Sebastian König, Hermann Krebs, Kristina D. Launey, Dean Lee, Petr Navrátil, Amy Nicholson, Assumpta Parreño, Daniel R. Phillips, Marek Płoszajczak, Xiu-Lei Ren, Thomas R. Richardson, Caroline Robin, Grigor H. Sargsyan, Martin J. Savage, Matthias R. Schindler, Phiala E. Shanahan, Roxanne P. Springer, Alexander Tichai, Ubirajara van Kolck, Michael L. Wagman, André Walker-Loud, Chieh-Jen Yang, Xilin Zhang
Publikováno v:
Few-Body Systems
Few Body Syst.
Few Body Syst., 2022, 63 (4), pp.67. ⟨10.1007/s00601-022-01749-x⟩
Few Body Syst.
Few Body Syst., 2022, 63 (4), pp.67. ⟨10.1007/s00601-022-01749-x⟩
This is a collection of perspective pieces contributed by the participants of the Institute of Nuclear Theory's Program on Nuclear Physics for Precision Nuclear Physics which was held virtually from April 19 to May 7, 2021. The collection represents
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cb2f6d5b6c2eb12a4baa55683ba6806
Finite-volume pionless effective field theory provides an efficient framework for the extrapolation of nuclear spectra and matrix elements calculated at finite volume in lattice QCD to infinite volume, and to nuclei with larger atomic number. In this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99c59ac6dbfaf459c3fd05fed4e006bb
Autor:
Michael S. Albergo, Gurtej Kanwar, Sébastien Racanière, Danilo J. Rezende, Julian M. Urban, Denis Boyda, Kyle Cranmer, Daniel C. Hackett, Phiala E. Shanahan
Publikováno v:
Physical Review
Algorithms based on normalizing flows are emerging as promising machine learning approaches to sampling complicated probability distributions in a way that can be made asymptotically exact. In the context of lattice field theory, proof-of-principle s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1dc9f5c53d934d418b36d00950f3ed7
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Autor:
William Detmold, Andrew Pochinsky, Martin J. Savage, Michael L. Wagman, Phiala E. Shanahan, David Murphy
Publikováno v:
Physical Review
Modern advances in algorithms for lattice QCD calculations have steadily driven down the resources required to generate gauge field ensembles and calculate quark propagators, such that, in cases relevant to nuclear physics, performing quark contracti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bea1c1497553312cc7eb2a308dcd40e
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Autor:
Phiala E. Shanahan, Michael S. Albergo, Danilo Jimenez Rezende, D. L. Boyda, Gurtej Kanwar, Daniel C. Hackett, Kyle Cranmer, Sébastien Racanière
Publikováno v:
Physical Review
We develop a flow-based sampling algorithm for $SU(N)$ lattice gauge theories that is gauge-invariant by construction. Our key contribution is constructing a class of flows on an $SU(N)$ variable (or on a $U(N)$ variable by a simple alternative) that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::907ffc0f71825161ba62b085f77d6329
https://doi.org/10.1103/physrevd.103.074504
https://doi.org/10.1103/physrevd.103.074504
Autor:
William Detmold, Phiala E. Shanahan, Emmanuel Chang, Assumpta Parreño, Kostas Orginos, Michael L. Wagman, Zohreh Davoudi, Marc Illa, Martin J. Savage, David Murphy, Frank Winter, Silas R. Beane
Publikováno v:
Physical Review D. 103
The interactions between two octet baryons are studied at low energies using lattice QCD (LQCD) with larger-than-physical quark masses corresponding to a pion mass of $m_{\pi}\sim 450$ MeV and a kaon mass of $m_{K}\sim 596$ MeV. The two-baryon system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f492f10838724d8ca0215763742b0ecc
https://doi.org/10.1103/physrevd.103.054508
https://doi.org/10.1103/physrevd.103.054508