Journal
PHYSICAL REVIEW LETTERS
Volume 113, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.113.091602
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Funding
- Natural Science Foundation of China [11275208, 11305018, 11178002]
- Jiangxi young scientists (JingGang Star) program
- 555 talent project of Jiangxi Province
- Belgian Federal Science Policy Office through the Interuniversity Attraction Pole [P7/37]
- FWO-Vlaanderen [G.0114.10N]
- Vrije Universiteit Brussel
- [G020714N]
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We construct a gravity dual for charge density waves (CDWs) in which the translational symmetry along one spatial direction is spontaneously broken. Our linear perturbation calculation on the gravity side produces the frequency dependence of the optical conductivity, which exhibits the two familiar features of CDWs, namely, the pinned collective mode and gapped single-particle excitation. These two features indicate that our gravity dual also provides a new mechanism to implement the metal to insulator phase transition by CDWs, which is further confirmed by the fact that dc conductivity decreases with the decreased temperature below the critical temperature.
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