Local particle-hole pair excitations by SU(2) symmetry fluctuations

Abstract

Understanding the pseudo-gap phase which opens in the under-doped regime of cuprate superconductors is one of the most enduring challenges of the physics of these compounds. A depletion in the electronic density of states is observed, which is gapping out part of the Fermi surface, leading to the formation of mysterious lines of massless excitations- the Fermi arcs. Here we give a new theoretical account of the physics of the pseudo-gap phase in terms of the emergence of local patches of particle-hole pairs generated by SU(2) symmetry fluctuations. The proliferation of these local patches accounts naturally for the robustness of the pseudo-gap phase to disturbances like disorder or magnetic field and is shown to gap out part fo the Fermi surface, leading to the formation of the Fermi arcs. Most noticeably, we show that these patches induce a modulated charge distribution on the Oxygen atoms, in remarkable agreement with recent X-ray and STM observations.

9 pages, 5 figures

References in corpus (28)

• Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
• Quantum oscillations and the Fermi surface in an underdoped high-Tc superconductor
• Ubiquitous Interplay between Charge Ordering and High-Temperature Superconductivity in Cuprates
• Charge order driven by Fermi-arc instability in Bi2201
• Quantum phase transitions of metals in two spatial dimensions: II. Spin density wave order
• Charge density wave origin of cuprate checkerboard visualized by scanning tunneling microscopy
• From a single-band metal to a high-temperature superconductor via two thermal phase transitions (Supporting Material)
• From a single-band metal to a high-temperature superconductor via two thermal phase transitions
• Resonant X-ray Scattering Study of Charge Density Wave Correlations in YBa${}_2$Cu${}_3$O${}_{6+x}$
• Connection between charge-density-wave order and charge transport in the cuprate superconductors
• Simultaneous Transitions in Cuprate Momentum-Space Topology and Electronic Symmetry Breaking
• Incipient charge order observed by NMR in the normal state of YBa2Cu3Oy
• X-ray diffraction observation of charge density wave order at zero magnetic field in ortho-II YBa${}_2$Cu${}_3$O${}_{6.54}$
• The symmetry of charge order in cuprates
• Magnetic field controlled charge density wave coupling in underdoped YBa${}_2$Cu${}_3$O${}_{6+x}$
• Atomic-scale Electronic Structure of the Cuprate d-Symmetry Form Factor Density Wave State
• Coexistence of charge-density-wave and pair-density-wave orders in underdoped cuprates
• Theory of the nodal nematic quantum phase transition in superconductors
• Charge Order in the Pseudogap Phase of Cuprate Superconductors
• Interplay between pair-density-wave and charge-density-wave orders in underdoped cuprates
• Feedback of superconducting fluctuations on charge order in the underdoped cuprates
• Fractionalized Fermi liquid with bosonic chargons as a candidate for the pseudogap metal
• Effective SU(2) theory for the pseudogap state
• The enigma of the pseudogap phase of the cuprate superconductors
• SU(2)-symmetry in a realistic spin-fermion model for cuprate superconductors
• Intimate relations between electronic nematic, d-density wave and d-wave superconducting states
• Magnetic-field Induced Interconversion of Cooper Pairs and Density Wave States within Cuprate Composite Order
• Effective spin-fermion model for strongly correlated electrons

Cited by in corpus (7)

• Fractionalized pair density wave in the pseudo-gap phase of cuprate superconductors
• Evolution of spectral and transport quantities with doping in the SU(2) theory of cuprates
• The phase diagram of the underdoped cuprates at high magnetic field
• Collective mode in the SU(2) theory of cuprates
• Fluctuations and Higgs mechanism in Under-Doped Cuprates: a Review
• Landscape of coexisting excitonic states in the insulating single-layer cuprates and nickelates
• A model for the neutron resonance in HgBa${}_2$CuO${}_{4+\delta }$