dc Resistivity of Quantum Critical, Charge Density Wave States from Gauge-Gravity Duality

被引:55
作者
Amoretti, Andrea [1 ,2 ]
Arean, Daniel [3 ]
Gouteraux, Blaise [4 ,5 ]
Musso, Daniele [6 ,7 ]
机构
[1] Univ Libre Bruxelles, Phys Theor & Math Inst, CP 231, B-1050 Brussels, Belgium
[2] Univ Libre Bruxelles, Int Solvay Inst, CP 231, B-1050 Brussels, Belgium
[3] Univ Porto, Dept Fis, Ctr Fis Porto, Rua Campo Alegre 687, P-4169007 Porto, Portugal
[4] KTH Royal Inst Technol, Nordita, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden
[5] Stockholm Univ, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden
[6] Univ Santiago de Compostela, Dept Fis Particulas, E-15782 Santiago De Compostela, Spain
[7] IGFAE, E-15782 Santiago De Compostela, Spain
关键词
Charge density - Copper compounds - High temperature superconductors - Quantum theory - Ground state;
D O I
10.1103/PhysRevLett.120.171603
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In contrast to metals with weak disorder, the resistivity of weakly pinned charge density waves (CDWs) is not controlled by irrelevant processes relaxing momentum. Instead, the leading contribution is governed by incoherent, diffusive processes which do not drag momentum and can be evaluated in the clean limit. We compute analytically the dc resistivity for a family of holographic charge density wave quantum critical phases and discuss its temperature scaling. Depending on the critical exponents, the ground state can be conducting or insulating. We connect our results to dc electrical transport in underdoped cuprate high T-c superconductors. We conclude by speculating on the possible relevance of unstable, semilocally critical CDW states to the strange metallic region.
引用
收藏
页数:6
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