Massive photons: An infrared regularization scheme for lattice
Abstract
Standard methods for including electromagnetic interactions in lattice quantum chromodynamics calculations result in power-law finite-volume corrections to physical quantities. Removing these by extrapolation requires costly computations at multiple volumes. We introduce a photon mass to alternatively regulate the infrared, and rely on effective field theory to remove its unphysical effects. Electromagnetic modifications to the hadron spectrum are reliably estimated with a precision and cost comparable to conventional approaches that utilize multiple larger volumes. A significant overall cost advantage emerges when accounting for ensemble generation. The proposed method may benefit lattice calculations involving multiple charged hadrons, as well as quantum many-body computations with long-range Coulomb interactions.
- Authors:
-
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Forschungszentrum Julich, Julich (Germany)
- The City College of New York, New York, NY (United States); The City Univ. of New York, New York, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
- College of William and Mary, Williamsburg, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1313754
- Alternate Identifier(s):
- OSTI ID: 1288988; OSTI ID: 1379556
- Report Number(s):
- JLAB-THY-15-2112; DOE/OR/23177-3477; arXiv:1507.08916
Journal ID: ISSN 0031-9007; PRLTAO
- Grant/Contract Number:
- SC0010495; AC05-06OR23177; SC0012180; PHY15-15738; AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 117; Journal Issue: 7; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Endres, Michael G., Shindler, Andrea, Tiburzi, Brian C., and Walker-Loud, Andre. Massive photons: An infrared regularization scheme for lattice QCD+QED. United States: N. p., 2016.
Web. doi:10.1103/PhysRevLett.117.072002.
Endres, Michael G., Shindler, Andrea, Tiburzi, Brian C., & Walker-Loud, Andre. Massive photons: An infrared regularization scheme for lattice QCD+QED. United States. https://doi.org/10.1103/PhysRevLett.117.072002
Endres, Michael G., Shindler, Andrea, Tiburzi, Brian C., and Walker-Loud, Andre. Wed .
"Massive photons: An infrared regularization scheme for lattice QCD+QED". United States. https://doi.org/10.1103/PhysRevLett.117.072002. https://www.osti.gov/servlets/purl/1313754.
@article{osti_1313754,
title = {Massive photons: An infrared regularization scheme for lattice QCD+QED},
author = {Endres, Michael G. and Shindler, Andrea and Tiburzi, Brian C. and Walker-Loud, Andre},
abstractNote = {Standard methods for including electromagnetic interactions in lattice quantum chromodynamics calculations result in power-law finite-volume corrections to physical quantities. Removing these by extrapolation requires costly computations at multiple volumes. We introduce a photon mass to alternatively regulate the infrared, and rely on effective field theory to remove its unphysical effects. Electromagnetic modifications to the hadron spectrum are reliably estimated with a precision and cost comparable to conventional approaches that utilize multiple larger volumes. A significant overall cost advantage emerges when accounting for ensemble generation. The proposed method may benefit lattice calculations involving multiple charged hadrons, as well as quantum many-body computations with long-range Coulomb interactions.},
doi = {10.1103/PhysRevLett.117.072002},
journal = {Physical Review Letters},
number = 7,
volume = 117,
place = {United States},
year = {2016},
month = {8}
}
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