Feshbach hypothesis of high-Tc superconductivity in cuprates

Abstract

Resonant interactions associated with the emergence of a bound state constitute one of the cornerstones of modern many-body physics, ranging from Kondo physics, BEC-BCS crossover, to tunable interactions at Feshbach resonances in ultracold atoms or 2D semiconductors. Here we present a Feshbach perspective on the origin of strong pairing in Fermi-Hubbard type models. We perform a theoretical analysis of interactions between charge carriers in doped Mott insulators, modeled by a near-resonant two-channel scattering problem, and find strong evidence for Feshbach-type interactions in the $d_{x^2-y^2}$ channel that can support strong pairing, consistent with the established phenomenology of cuprates. Existing experimental and numerical results on hole-doped cuprates lead us to conjecture the existence of a light, long-lived, low-energy excited state of two holes with bipolaron character in these systems, which enables near-resonant interactions and can thus provide a microscopic foundation for theories of high-temperature superconductivity involving strong attraction, as assumed e.g. in BEC-BCS crossover scenarios. To put our theory to a direct test we suggest to use coincidence angle-resolved photoemission spectroscopy (cARPES), pair-tunneling measurements or less direct pump-probe experiments. The emergent Feshbach resonance we propose could also underlie superconductivity in other doped antiferromagnetic Mott insulators, as recently proposed for bilayer nickelates, highlighting its potential as a unifying strong-coupling pairing mechanism rooted in quantum magnetism.

7+4 pages, 4+3 figures

References in corpus (39)

• Theory of Intertwined Orders in High Temperature Superconductors
• Quantum oscillations and the Fermi surface in an underdoped high-Tc superconductor
• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Fractionalized Fermi liquids
• Energy gaps in high-transition temperature cuprate superconductors
• Tracking the Footprints of Spin Fluctuations: A MultiMethod, MultiMessenger Study of the Two-Dimensional Hubbard Model
• Coexistence of superconductivity with partially filled stripes in the Hubbard model
• Ground State Phase Diagram of the $t$-$t^{\prime }$-$J$ model
• On the Electron Pairing Mechanism of Copper-Oxide High Temperature Superconductivity
• Feshbach resonances and mesoscopic phase separation near a quantum critical point in multiband FeAs-based superconductors
• String excitations of a hole in a quantum antiferromagnet and photoelectron spectrospopy
• Electron pairing in the pseudogap state revealed by shot noise in copper-oxide junctions
• Charge Transfer Excitations, Pair Density Waves, and Superconductivity in Moiré Materials
• Microscopic spinon-chargon theory of magnetic polarons in the t-J model
• When Superconductivity Crosses Over: From BCS to BEC
• Parton theory of ARPES spectra in anti-ferromagnetic Mott insulators
• Observation of electrically tunable Feshbach resonances in twisted bilayer semiconductors
• Direct evidence for Cooper pairing without a spectral gap in a disordered superconductor above $T_C$
• Topological superconductivity in doped magnetic moiré semiconductors
• Two-Hole Bound States from a Systematic Low-Energy Effective Field Theory for Magnons and Holes in an Antiferromagnet
• New mechanism and exact theory of superconductivity from strong repulsive interaction
• Fractionalized Fermi liquid with bosonic chargons as a candidate for the pseudogap metal
• The underdoped cuprates as fractionalized Fermi liquids: transition to superconductivity
• A model of $d$-wave superconductivity, antiferromagnetism, and charge order on the square lattice
• Unveiling phase diagram of the lightly doped high-Tc cuprate superconductors with disorder removed
• Evolution of plasmon excitations across the phase diagram of the cuprate superconductor La${}_{2-x}$Sr${}_x$CuO${}_4$
• Dominant fifth-order correlations in doped quantum anti-ferromagnets
• Pairing of holes by confining strings in antiferromagnets
• Coincidence angle-resolved photoemission spectroscopy: Proposal for detection of two-particle correlations
• Realizing Topological Superconductivity in Tunable Bose-Fermi Mixtures with Transition Metal Dichalcogenide Heterostructures
• Antiferromagnetic bosonic $t$-$J$ models and their quantum simulation in tweezer arrays
• Absence of a BCS-BEC crossover in the cuprate superconductors
• Rotational Resonances and Regge Trajectories in Lightly Doped Antiferromagnets
• Distinguishing finite momentum superconducting pairing states with two-electron photoemission spectroscopy
• Superconductivity induced by strong electron-exciton coupling in doped atomically thin semiconductor heterostructures
• Dichotomy of heavy and light pairs of holes in the $t-J$ model
• Superconductivity with and without glue and the role of the double-occupancy forbidding constraint in the t-J-V model
• Test for BCS-BEC Crossover in the Cuprate Superconductors
• Scattering theory of mesons in doped antiferromagnetic Mott insulators: Multichannel perspective and Feshbach resonance

Cited by in corpus (7)

• Geometric orthogonal metals: Hidden antiferromagnetism and pseudogap from fluctuating stripes
• Extended $s$-wave pairing from an emergent Feshbach resonance in bilayer nickelate superconductors
• Post-experiment coincidence detection techniques for direct detection of two-body correlations
• Magnetic correlations in the $SU(3)$ triangular-lattice $t$-$J$ model at finite doping
• Coincidence detection techniques for direct measurement of many-body correlations in strongly correlated electron systems
• Spinon Singlet Pairing: Origin of $d$-Wave Sign Structure in a Partially-Filled Stripe
• Emergent spinon-holon Feshbach resonance in a doped Majumdar-Ghosh model