Collective modes of color-flavor locked phase of dense QCD at finite temperature

V. P. Gusynin; I. A. Shovkovy

doi:10.1016/S0375-9474(01)01317-3

Collective modes of color-flavor locked phase of dense QCD at finite temperature

V. P. Gusynin, I. A. Shovkovy

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22 Scopus citations

Abstract

A detailed analysis of collective modes that couple to either vector or axial color currents in color-flavor locked phase of color superconducting dense quark matter at finite temperature is presented. Among the realm of collective modes, including the plasmons and the Nambu-Goldstone bosons, we also reveal the gapless Carlson-Goldman modes, resembling the scalar Nambu-Goldstone bosons. These latter exist only in a close vicinity of the critical line. Their presence does not eliminate the Meissner effect, proving that the system remains in the color broken phase. The finite temperature properties of the plasmons and the Nambu-Goldstone bosons are also studied. In addition to the ordinary plasmon, we also reveal a "light" plasmon which has a narrow width and whose mass is of the order of the superconducting gap.

Original language	English (US)
Pages (from-to)	577-617
Number of pages	41
Journal	Nuclear Physics A
Volume	700
Issue number	1-2
DOIs	https://doi.org/10.1016/S0375-9474(01)01317-3
State	Published - Mar 25 2002
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/S0375-9474(01)01317-3

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title = "Collective modes of color-flavor locked phase of dense QCD at finite temperature",

abstract = "A detailed analysis of collective modes that couple to either vector or axial color currents in color-flavor locked phase of color superconducting dense quark matter at finite temperature is presented. Among the realm of collective modes, including the plasmons and the Nambu-Goldstone bosons, we also reveal the gapless Carlson-Goldman modes, resembling the scalar Nambu-Goldstone bosons. These latter exist only in a close vicinity of the critical line. Their presence does not eliminate the Meissner effect, proving that the system remains in the color broken phase. The finite temperature properties of the plasmons and the Nambu-Goldstone bosons are also studied. In addition to the ordinary plasmon, we also reveal a {"}light{"} plasmon which has a narrow width and whose mass is of the order of the superconducting gap.",

author = "Gusynin, {V. P.} and Shovkovy, {I. A.}",

note = "Funding Information: We would like to thank the members of Physics Department at Nagoya University, especially Prof. K. Yamawaki, for their hospitality during the initial stage of this project. V.P.G. is grateful to Dr. S. Sharapov for fruitful discussions on CG modes in standard superconductors. I.A.S. would like to thank Prof. A. Goldman and Prof. V. Miransky for interesting discussions and comments. This work was partially supported by Grant-in-Aid of Japan Society for the Promotion of Science (JSPS) #11695030. The work of V.P.G. was also supported by the grants: SCOPES projects 7 IP 062607 and 7UKPJ062150.00/1 of the Swiss NSF and the grant No. PHY-0122450 of NSF (USA). He wishes to acknowledge JSPS for financial support. The work of I.A.S. was supported by the US Department of Energy Grant No. DE-FG02-87ER40328.",

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AU - Gusynin, V. P.

AU - Shovkovy, I. A.

N1 - Funding Information: We would like to thank the members of Physics Department at Nagoya University, especially Prof. K. Yamawaki, for their hospitality during the initial stage of this project. V.P.G. is grateful to Dr. S. Sharapov for fruitful discussions on CG modes in standard superconductors. I.A.S. would like to thank Prof. A. Goldman and Prof. V. Miransky for interesting discussions and comments. This work was partially supported by Grant-in-Aid of Japan Society for the Promotion of Science (JSPS) #11695030. The work of V.P.G. was also supported by the grants: SCOPES projects 7 IP 062607 and 7UKPJ062150.00/1 of the Swiss NSF and the grant No. PHY-0122450 of NSF (USA). He wishes to acknowledge JSPS for financial support. The work of I.A.S. was supported by the US Department of Energy Grant No. DE-FG02-87ER40328.

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Y1 - 2002/3/25

N2 - A detailed analysis of collective modes that couple to either vector or axial color currents in color-flavor locked phase of color superconducting dense quark matter at finite temperature is presented. Among the realm of collective modes, including the plasmons and the Nambu-Goldstone bosons, we also reveal the gapless Carlson-Goldman modes, resembling the scalar Nambu-Goldstone bosons. These latter exist only in a close vicinity of the critical line. Their presence does not eliminate the Meissner effect, proving that the system remains in the color broken phase. The finite temperature properties of the plasmons and the Nambu-Goldstone bosons are also studied. In addition to the ordinary plasmon, we also reveal a "light" plasmon which has a narrow width and whose mass is of the order of the superconducting gap.

AB - A detailed analysis of collective modes that couple to either vector or axial color currents in color-flavor locked phase of color superconducting dense quark matter at finite temperature is presented. Among the realm of collective modes, including the plasmons and the Nambu-Goldstone bosons, we also reveal the gapless Carlson-Goldman modes, resembling the scalar Nambu-Goldstone bosons. These latter exist only in a close vicinity of the critical line. Their presence does not eliminate the Meissner effect, proving that the system remains in the color broken phase. The finite temperature properties of the plasmons and the Nambu-Goldstone bosons are also studied. In addition to the ordinary plasmon, we also reveal a "light" plasmon which has a narrow width and whose mass is of the order of the superconducting gap.

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Collective modes of color-flavor locked phase of dense QCD at finite temperature

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