Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-03-26
Phys.Rev. D73 (2006) 094016
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, 3 figures; fatal typo about the conclusion corrected; reference added
Scientific paper
10.1103/PhysRevD.73.094016
We discuss possible destinations from the chromomagnetic instability in color superconductors with Fermi surface mismatch $\delta\mu$. In the two-flavor superconducting (2SC) phase we calculate the effective potential for color vector potentials $A_\alpha$ which are interpreted as the net momenta $q$ of pairing in the Larkin-Ovchinnikov-Fulde-Ferrel (LOFF) phase. When $1/\sqrt{2}<\delta\mu/\Delta<1$ where $\Delta$ is the gap energy, the effective potential suggests that the instability leads to a LOFF-like state which is characterized by color-rotated phase oscillations with small $q$. In the vicinity of $\delta\mu/\Delta=1/\sqrt{2}$ the magnitude of $q$ continuously increases from zero as the effective potential has negative larger curvature at vanishing $A_\alpha$ that is the Meissner mass squared. In the gapless 2SC (g2SC) phase, in contrast, the effective potential has a minimum at $gA_\alpha\sim\delta\mu\sim\Delta$ even when the negative Meissner mass squared is infinitesimally small. Our results imply that the chromomagnetic instability found in the gapless phase drives the system toward the LOFF state with $q\sim\delta\mu$.
No associations
LandOfFree
Characterizing the Larkin-Ovchinnikov-Fulde-Ferrel phase induced by the chromomagnetic instability does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Characterizing the Larkin-Ovchinnikov-Fulde-Ferrel phase induced by the chromomagnetic instability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Characterizing the Larkin-Ovchinnikov-Fulde-Ferrel phase induced by the chromomagnetic instability will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-607895