TY - JOUR
T1 - Holographic multi-band superconductor
AU - Huang, Ching Yu
AU - Lin, Feng Li
AU - Maity, Debaprasad
N1 - Funding Information:
We thank Chen-Pin Yeh for taking part in this project at its early stage. We also thank Juinn-Wei Chen, Christopher Herzog and Logan Wu for helpful discussions. This work is supported by Taiwanʼs NSC grant NSC-099-2811-M-003-007- , and partly by NCTS .
PY - 2011/9/26
Y1 - 2011/9/26
N2 - We propose a gravity dual for the holographic superconductor with multi-band carriers. Moreover, the currents of these carriers are unified under a global flavored SO(3) symmetry, which is dual to the bulk SO(3) gauge symmetry. We study the phase diagram of our model, and find it qualitatively agrees with the one for the realistic 2-band superconductor, such as MgB2. We also identify the bulk field dual to the electromagnetic U(1)EM current, which should be invariant under the global flavored SO(3) rotation. We then evaluate the corresponding holographic conductivity and find the expected mean field like behaviors.
AB - We propose a gravity dual for the holographic superconductor with multi-band carriers. Moreover, the currents of these carriers are unified under a global flavored SO(3) symmetry, which is dual to the bulk SO(3) gauge symmetry. We study the phase diagram of our model, and find it qualitatively agrees with the one for the realistic 2-band superconductor, such as MgB2. We also identify the bulk field dual to the electromagnetic U(1)EM current, which should be invariant under the global flavored SO(3) rotation. We then evaluate the corresponding holographic conductivity and find the expected mean field like behaviors.
KW - AdS/CFT
KW - Holographic superconductor
KW - Two-band superconductor
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U2 - 10.1016/j.physletb.2011.08.053
DO - 10.1016/j.physletb.2011.08.053
M3 - Article
AN - SCOPUS:80052408749
SN - 0370-2693
VL - 703
SP - 633
EP - 640
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 5
ER -