NDLI: Lattice study of dense matter with two colors and four flavors

Content Provider	Springer Nature Link
Author	Hands, S. Kenny, P. Kim, S. Skullerud, J. I.
Copyright Year	2011
Abstract	We present results from a simulation of SU(2) lattice gauge theory with N f = 4 flavors of Wilson fermion and non-zero quark chemical potential μ, using the same 123×24 lattice, bare gauge coupling, and pion mass in cut-off units as a previous study (S. Hands, S. Kim, J.I. Skullerud, Phys. Rev. D 81, 091502(R) (2010)) with N f = 2 . The string tension for N f = 4 is found to be considerably smaller implying smoother gauge field configurations. Thermodynamic observables and order parameters for superfluidity and color deconfinement are studied, and comparisons drawn between the two theories. Results for quark density and pressure as functions of μ are qualitatively similar for N f = 2 and N f = 4 ; in both cases there is evidence for a phase in which baryonic matter is simultaneously degenerate and confined. Results for the stress-energy tensor, however, suggest that while N f = 2 has a regime where dilute matter is non-relativistic and weakly interacting, N f = 4 matter is relativistic and strongly interacting for all values of μ above onset.
Starting Page	1
Ending Page	7
Page Count	7
File Format	PDF
ISSN	14346001
Journal	The European Physical Journal A - Hadrons and Nuclei
Volume Number	47
Issue Number	5
e-ISSN	1434601X
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-05-13
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nuclear Physics, Heavy Ions, Hadrons Particle and Nuclear Physics Nuclear Fusion
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics

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