Onset Transition to Cold Nuclear Matter from Lattice QCD with Heavy Quarks - INSPIRE

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Onset Transition to Cold Nuclear Matter from Lattice QCD with Heavy Quarks

Jul 12, 2012

4 pages

Published in:

Phys.Rev.Lett. 110 (2013) 12, 122001

Published: Mar 19, 2013

e-Print:

1207.3005 [hep-lat]

DOI:

10.1103/PhysRevLett.110.122001

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Abstract: (APS)

Lattice QCD at finite density suffers from a severe sign problem, which has so far prohibited simulations of the cold and dense regime. Here we study the onset of nuclear matter employing a three-dimensional effective theory derived by combined strong coupling and hopping expansions, which is valid for heavy but dynamical quarks and has a mild sign problem only. Its numerical evaluations agree between a standard Metropolis and complex Langevin algorithm, where the latter is free of the sign problem. Our continuum extrapolated data approach a first order phase transition at μB≈mB as the temperature approaches zero. An excellent description of the data is achieved by an analytic solution in the strong coupling limit.

Note:

Four pages, three figures; uses REVTeX-4. Version accepted by PRL. Title changed upon request by the Editors

05.70.Fh
12.38.Gc
11.15.Ha
QCD phase diagram
lattice gauge theory
sign problem
approximation: strong coupling
density: finite
dimension: 3
effective field theory

References(17)

Figures(3)

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