20 papers
Superconducting and charge-ordered phases from Dirac quantum spin liquids on the triangular lattice
Andreas Feuerpfeil, Ronny Thomale, Subir Sachdev +1
Triangular-lattice quantum spin-liquid insulators are observed to undergo transitions to superconductivity under pressure or doping, and exhibit enhanced terahertz conductivity whe…
Spin stiffnesses and stability of magnetic order in the lightly doped two-dimensional Hubbard model
Demetrio Vilardi, Pietro M. Bonetti, Walter Metzner
We analyze the density dependence of the spin stiffnesses and the stability of magnetic order with respect to quantum fluctuations in the two-dimensional Hubbard model close to hal…
SU(2) gauge theory of fluctuating stripe order in the two-dimensional Hubbard model
Henrik Müller-Groeling, Pietro M. Bonetti, Paulo Forni +1
We present an SU(2) gauge theory of fluctuating stripe order in the two-dimensional Hubbard model. The theory is based on a fractionalization of the electron operators in fermionic…
Fractionalized Fermi liquids and the cuprate phase diagram
Pietro M. Bonetti, Maine Christos, Alexander Nikolaenko +2
We review a theoretical framework for the cuprate superconductors, rooted in a fractionalized Fermi liquid (FL*) description of the intermediate-temperature pseudogap phase at low…
Thermal SU(2) lattice gauge theory for intertwined orders and hole pockets in the cuprates
Harshit Pandey, Maine Christos, Pietro M. Bonetti +3
The cuprate pseudogap phase displays Fermi arc spectral weight in photoemission and scanning tunneling microscopy (STM), while recent magnetotransport observations yield evidence f…
Superconductivity and fractionalized magnetic excitations in CeCoIn5
Pyeongjae Park, Shang-Shun Zhang, Pietro M. Bonetti +8
Recent experiments on CeCoIn5 -- a prototypical d-wave superconductor -- indicate that its normal state lies near an unconventional quantum critical point (QCP). One intriguing hyp…