Confinement transition to density wave order in metallic doped spin liquids

Article

关键词: CHARGE ORDER;    GROUND-STATES;    VALENCE-BOND;    QUANTUM;    PHASE;    ANTIFERROMAGNETS;    SUPERCONDUCTIVITY;    FLUCTUATIONS;    NEMATICITY;    SYMMETRY;   

DOI  :  10.1103/PhysRevB.93.165139

来源: SCIE

【 摘 要 】

Insulating quantum spin liquids can undergo a confinement transition to a valence bond solid via the condensation of topological excitations of the associated gauge theory. We extend the theory of such transitions to fractionalized Fermi liquids (FL*): These are metallic doped spin liquids in which the Fermi surfaces only have gauge neutral quasiparticles. Using insights from a duality transform on a doped quantum dimer model for the U(1)-FL* state, we show that projective symmetry group of the theory of the topological excitations remains unmodified, but the Fermi surfaces can lead to additional frustrating interactions. We propose a theory for the confinement transition of Z2-FL* states via the condensation of visons. A variety of confining, incommensurate density wave states are possible, including some that are similar to the incommensurate d-form factor density wave order observed in several recent experiments on the cuprate superconductors.

【 授权许可】

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