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Vortex structure in a $d$-wave superconductor obtained by a confinement transition from the pseudogap metal

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arxiv 2406.12964 v4 pith:AL3V3CG5 submitted 2024-06-18 cond-mat.str-el cond-mat.supr-con

Jia-Xin Zhang , Subir Sachdev This is my paper · ORCID
classification cond-mat.str-elcond-mat.supr-con
keywords chargemetalorderpseudogapstructuresuperconductortheorytransition
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abstract

We compute the structure of flux $h/(2e)$ vortices in a d-wave superconductor which emerges from a higher temperature pseudogap metal. Such a transition is described by a continuum theory of the Higgs condensation of 2 flavors of charge $e$ bosons which are fundamentals of an emergent SU(2) gauge field. Period-2 charge order is present near the vortex center. Upon coupling the electrons to the superconducting and charge order parameters, we find that the electronic local density of states does not have a zero-bias peak, in contrast to BCS theory. But there are sub-gap peaks at positive and negative bias, and these exhibit anti-phase periodic spatial modulations, similar to observations in scanning tunneling microscopy experiments in the underdoped cuprates (K. Matsuba et al., J. Phys. Soc. Jpn. 76, 063704 (2007)).

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Thermopower across Fermi-volume-changing quantum phase transitions without translational symmetry breaking

    cond-mat.str-el 2024-12 conditional novelty 6.0 of 10

    A large-N model of a Fermi-volume-changing transition without symmetry breaking predicts a skewed marginal Fermi liquid with large asymmetric thermopower, matching CeRhIn5 and Nd-LSCO data.

  2. Lectures on insulating and conducting quantum spin liquids

    cond-mat.str-el 2025-12 unverdicted novelty 3.0 of 10

    The notes argue that the FL* state — small pockets plus a quantized spin-liquid anomaly — resolves the ADMR pocket and v_F >> v_Delta problems that defeated holon-metal and plain fermionic-parton theories of the cuprates.

  3. The foot, the fan, and the cuprate phase diagram: Fermi-volume-changing quantum phase transitions

    cond-mat.str-el 2025-01 conditional novelty 3.0 of 10

    The paper attributes the cuprate 'foot' to a disordered spin-density-wave transition and the 'fan' to a disorder-tuned FL-to-FL* Fermi-volume-changing transition described by a two-dimensional Yukawa-SYK model.

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