Color Superconductivity in High Density Effective Theory

نویسنده

  • Deog Ki Hong
چکیده

In this talk, I discuss the recent development in color superconductivity in terms of effective field theory. By investigating the Cooper pair gap equations at high density, we see that the effective theory simplifies the gap analysis very much, especially in finding the ground state, the precise form of the gap, and the critical temperature. Furthermore, the effective theory enables us to estimate the critical density for color superconductivity, which is found to be around 230 MeV in the hard-dense-loop approximation. Finally, I briefly mention the low-lying spectra of color superconductor at high density. Contribution to the Proceedings of the TMU-Yale Symposium on the Dynamics of Gauge Fields an External Activity of APCTP, December 13-15 1999, Tokyo, Japan. ∗[email protected] 1

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

High density effective theory results for two and three massive flavors color - superconductivity

We describe some topics related to massive two and three flavors color superconductivity (CSC), obtained in the framework of high density effective theory (HDET); moreover we present a modified Nambu-Jona Lasinio model with running-as opposite to fixed-ultraviolet cutoff, discussing the troubles that one encounters with the former when discussing QCD at high density.

متن کامل

Quark Condensation, Induced Symmetry Breaking and Color Superconductivity at High Density

The phase structure of hadronic matter at high density relevant to the physics of compact stars and relativistic heavy-ion collisions is studied in a low-energy effective quark theory. The relevant phases that figure are (1) chiral condensation, (2) diquark color condensation (color superconductivity) and (3) induced Lorentz-symmetry breaking (“ISB”). For a reasonable strength for the effective...

متن کامل

Effective theory of color superconductivity

We briefly review an effective theory of QCD at high baryon density, describing the relevant modes near the Fermi surface. The high density effective theory has properties of reparametrization invariance and gauge invariance, maintained in a subtle way. It also has a positive measure, allowing lattice simulations at high baryon density. We then apply it to gapless superconductors and discuss re...

متن کامل

Color Superconductivity of QCD at High Baryon Density ∗ Hai - cang

At sufficiently high baryon density, a quark matter is expected to become a color superconductor because of the pairing forces mediated by gluons. The theoretical aspect of this novel phase of the strong interaction is reviewed with the emphasis on the perturbation theory of QCD at high chemical potential and low temperature. The derivation of the scaling formula of the supercon-ducting transit...

متن کامل

Phase Structure of Color Superconductivity and Chiral Restoration

In the ideal case at asymptotically high baryon density, the color superconductivity with two massless flavors and the color-flavor-locking (CFL) phase with three degenerated massless quarks have been widely discussed from first principle QCD calculations1. For physical applications we are more interested in the moderate baryon density region which may be related to the neutron stars and, in ve...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2000