Theory of high-Tc superconductivity in cuprates emerging from universal strange metal

One of the long-standing puzzles in strongly correlated materials is the microscopic mechanism for the high-Tc superconductivity in cuprates born out of the strange metal normal state, where a universal T-linear Planckian scattering rate beyond quasi-particle limit was observed. Here, we develop a theory to address this issue within a recently proposed heavy-fermion Kondo lattice approach to the hole-doped slave-boson t-J model [1][2]. Therein, the hole-like strange metal conduction band made of spinon-holon bound fermions Kondo-couples to a charge-neutral fermionic spinon band of Resonating-Valence-Bond (RVB) spin-liquid state and local disordered bosons. Via RPA renormalized mean-field approach, we find a d-wave superconducting dome emerging from Cooper pairing of the spinon-holon bound fermions, mediated by pre-formed RVB singlet spinon pairs through Kondo hybridization (condensation of slave bosons). Our results agree very well with various key experimental observations on cuprates, including: 1. the global doping-temperature phase diagram, 2. Fermi pockets near four nodal points in the pseudogap phase with an area p/8 per spin per pocket (Yamaji effect), 3. the magnitude and shape of Tc dome of superconducting phase, 4. linear relation among A_1 coefficient in T-linear resistivity, Tc, and superfluid density in the overdoped region, 5. evolution of Fermi surface topology and volume/carrier density from p (hole doping level) in pseudogap phase to 1+p in the Fermi liquid state.