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Title: Separating the scales of confinement and chiral-symmetry breaking in lattice QCD with fundamental quarks

Abstract

Suggested holographic duals of QCD, based on AdS/CFT duality, predict that one should be able to vary the scales of color confinement and chiral-symmetry breaking independently. Furthermore they suggest that such independent variation of scales can be achieved by the inclusion of extra 4-fermion interactions in QCD. We simulate lattice QCD with such extra 4-fermion terms at finite temperatures and show that for strong enough 4-fermion couplings the deconfinement transition occurs at a lower temperature than the chiral-symmetry restoration transition. Moreover the separation of these transitions depends on the size of the 4-fermion coupling, confirming the predictions from the proposed holographic dual of QCD. We use simpler 4-fermion interactions than those suggested by these dual theories to facilitate our simulations. This is because we believe that the physics we wish to study should be insensitive to the precise form of these interactions.

Authors:
 [1]
  1. HEP Division and Joint Theory Institute, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)
Publication Date:
OSTI Identifier:
21250747
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 78; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevD.78.054512; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHIRAL SYMMETRY; COLOR MODEL; CONFINEMENT; COUPLING; COUPLINGS; DUALITY; FORECASTING; HOLOGRAPHY; INTERACTIONS; LATTICE FIELD THEORY; QUANTUM CHROMODYNAMICS; QUANTUM FIELD THEORY; QUARKS; SIMULATION; STRING MODELS; SYMMETRY BREAKING

Citation Formats

Sinclair, D K. Separating the scales of confinement and chiral-symmetry breaking in lattice QCD with fundamental quarks. United States: N. p., 2008. Web. doi:10.1103/PHYSREVD.78.054512.
Sinclair, D K. Separating the scales of confinement and chiral-symmetry breaking in lattice QCD with fundamental quarks. United States. https://doi.org/10.1103/PHYSREVD.78.054512
Sinclair, D K. Mon . "Separating the scales of confinement and chiral-symmetry breaking in lattice QCD with fundamental quarks". United States. https://doi.org/10.1103/PHYSREVD.78.054512.
@article{osti_21250747,
title = {Separating the scales of confinement and chiral-symmetry breaking in lattice QCD with fundamental quarks},
author = {Sinclair, D K},
abstractNote = {Suggested holographic duals of QCD, based on AdS/CFT duality, predict that one should be able to vary the scales of color confinement and chiral-symmetry breaking independently. Furthermore they suggest that such independent variation of scales can be achieved by the inclusion of extra 4-fermion interactions in QCD. We simulate lattice QCD with such extra 4-fermion terms at finite temperatures and show that for strong enough 4-fermion couplings the deconfinement transition occurs at a lower temperature than the chiral-symmetry restoration transition. Moreover the separation of these transitions depends on the size of the 4-fermion coupling, confirming the predictions from the proposed holographic dual of QCD. We use simpler 4-fermion interactions than those suggested by these dual theories to facilitate our simulations. This is because we believe that the physics we wish to study should be insensitive to the precise form of these interactions.},
doi = {10.1103/PHYSREVD.78.054512},
url = {https://www.osti.gov/biblio/21250747}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 5,
volume = 78,
place = {United States},
year = {2008},
month = {9}
}