Holographic multi-band superconductor

Ching Yu Huang; Feng Li Lin; Debaprasad Maity

doi:10.1016/j.physletb.2011.08.053

Holographic multi-band superconductor

Ching Yu Huang^*
, Feng Li Lin
, Debaprasad Maity

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	633-640
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	703
Issue number	5
DOIs	https://doi.org/10.1016/j.physletb.2011.08.053
Publication status	Published - 2011 Sept 26

Keywords

AdS/CFT
Holographic superconductor
Two-band superconductor

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2011.08.053

Cite this

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title = "Holographic multi-band superconductor",

abstract = "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.",

keywords = "AdS/CFT, Holographic superconductor, Two-band superconductor",

author = "Huang, \{Ching Yu\} and Lin, \{Feng Li\} and Debaprasad Maity",

note = "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 . ",

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doi = "10.1016/j.physletb.2011.08.053",

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journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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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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DO - 10.1016/j.physletb.2011.08.053

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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

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Holographic multi-band superconductor

Abstract

Keywords

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