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Thermal color superconducting phase transitions in three-flavor quark matter at high baryon density are investigated in the Ginzburg-Landau (GL) approach. We constructed the GL potential near the boundary with a normal phase by taking into…

High Energy Physics - Phenomenology · Physics 2009-11-10 K. Iida , T. Matsuura , M. Tachibana , T. Hatsuda

We consider color superconductivity with two flavors of massless quarks which form Cooper pairs with total spin zero. We solve the gap equation for the color-superconducting gap parameter to subleading order in the QCD coupling constant $g$…

Nuclear Theory · Physics 2009-11-07 Qun Wang , Dirk H. Rischke

Thermal color superconducting phase transitions in high density three-flavor quark matter are investigated in the Ginzburg-Landau approach. Effects of nonzero strange quark mass, electric and color charge neutrality, and direct instantons…

High Energy Physics - Phenomenology · Physics 2009-11-10 K. Iida , T. Matsuura , M. Tachibana , T. Hatsuda

We study the effects of thermal fluctuations of gluons and the diquark pairing field on the superconducting-to-normal state phase transition in a three-flavor color superconductor, using the Ginzburg-Landau free energy. At high baryon…

High Energy Physics - Phenomenology · Physics 2009-11-10 Taeko Matsuura , Kei Iida , Tetsuo Hatsuda , Gordon Baym

Recent interest in the study of color superconductivity has focused on the regime of high baryon density where perturbative QCD may be employed. Based on the dominant one-gluon-exchange interaction, both the transition temperature and zero…

High Energy Physics - Phenomenology · Physics 2009-10-31 William E. Brown , James T. Liu , Hai-cang Ren

We apply Ginzburg-Landau theory to determine BCS pairing in a strongly-coupled uniform superfluid of three-flavor massless quarks in flavor equilibrium. We elucidate the phase diagram near the critical temperature in the space of the…

High Energy Physics - Phenomenology · Physics 2014-11-17 Kei Iida , Gordon Baym

We investigate the effects of pairing fluctuations in fermionic superfluids/superconductors where pairing occurs among three species (colors) of fermions. Such color superfluids/superconductors can be realized in three-component atomic…

Nuclear Theory · Physics 2013-09-19 Jinyi Pang , Jincheng Wang , Lianyi He

Thermal fluctuations of the color superconducting order parameter in dense quark matter are investigated in terms of the phenomenological Ginzburg - Landau approach. Our estimates show that fluctuations of the di-quark gap may strongly…

Nuclear Theory · Physics 2007-05-23 D. N. Voskresensky

We study color superconductivity with $N_f=1,2,$ and 3 massless flavors of quarks. We present a general formalism to derive and solve the gap equations for condensation in the even-parity channel. This formalism shows that the leading-order…

Nuclear Theory · Physics 2009-11-07 Andreas Schmitt , Qun Wang , Dirk H. Rischke

The energy and momentum dependence of the gluon self-energy is investigated in a color superconductor with two flavors of massless quarks. The presence of a color-superconducting quark-quark condensate modifies the gluon self-energy for…

Nuclear Theory · Physics 2009-11-07 Dirk H. Rischke

We investigate the behavior of the superconducting transition temperature within a previously developed BCS-Bose Einstein crossover picture. This picture, based on a decoupling scheme of Kadanoff and Martin, further extended by Patton, can…

Superconductivity · Physics 2007-05-23 Qijin Chen , Ioan Kosztin , Boldizsar Janko , K. Levin

The key ingredients in any superconductor are the Cooper pairs, in which two electrons combine to form a composite boson. In all conventional superconductors the pairing strength alone sets the majority of the physical properties including…

The equation of state of deconfined strongly interacting matter at high densities remains an open question, with effects from quark pairing in the preferred color-flavor-locked (CFL) ground state possibly playing an important role. Recent…

High Energy Physics - Phenomenology · Physics 2025-11-21 Andreas Geißel , Tyler Gorda , Jens Braun

The temperature dependencies of the coupled superconducting gaps, observed in Fe-As based superconducting compounds is calculated and a universal temperature scaling observed which is only present if the coupled order parameters both have…

Superconductivity · Physics 2009-06-15 A. Bussmann-Holder , A. Simon , H. Keller , A. R. Bishop

We study the superconducting instability in systems with long but finite ranged, attractive, pairing interactions. We show that such long-ranged superconductors exhibit a new class of fluctuations in which the internal structure of the…

Superconductivity · Physics 2009-10-31 Kun Yang , S. L. Sondhi

Temperature-dependent gap equations in the SU(4) model of high-Tc superconductivity are derived and analytical solutions are obtained. Based on these solutions, a generic gap diagram describing the features of energy gaps as functions of…

Superconductivity · Physics 2009-11-11 Yang Sun , Mike Guidry , Cheng-Li Wu

We derive the expressions for the transition temperature $(T_{c})$, and the spatial dependence of the superconducting gap for a multilayer high-$T_{c}$ superconductor composed of groups of tightly spaced planes separated by a larger…

Condensed Matter · Physics 2009-10-28 Krzysztof Byczuk , Jozef Spalek

The difficulty of describing the gauge dependent bi-quark condensate in the QCD colour superconducting phase has made it hard to construct a holographic dual of the state. To side step this problem, we argue that near the chiral restoration…

High Energy Physics - Phenomenology · Physics 2018-09-26 Kazem Bitaghsir Fadafan , Jesus Cruz Rojas , Nick Evans

We propose a finite temperature Landau theory that describes competing orders and interlayer tunneling in cuprate superconductors as an important extension to a corresponding theory at zero temperature [Nature {\bf 428}, 53 (2004)], where…

Superconductivity · Physics 2009-11-11 Jian-Bao Wu , Ming-Xu Pei , Qiang-Hua Wang

In dense quark matter, the response of the color superconducting gaps to a small variation, $\delta\mu$, in the chemical potential of the strange quark was studied. The approximation of three massless flavors of quarks and a general ansatz…

High Energy Physics - Phenomenology · Physics 2007-05-23 Todd D. Fugleberg
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