4 papers
Doping the chiral spin liquid -- topological superconductor or chiral metal?
Xue-Yang Song, Ashvin Vishwanath, Ya-Hui Zhang
We point out that there are two different chiral spin liquid states on the triangular lattice and discuss the conducting states that are expected on doping them. These states label…
Electric polarization as a nonquantized topological response and boundary Luttinger theorem
Xue-Yang Song, Yin-Chen He, Ashvin Vishwanath +1
We develop a nonperturbative approach to the bulk polarization of crystalline electric insulators in dimensions. Formally, we define polarization via the response to backg…
From spinon band topology to the symmetry quantum numbers of monopoles in Dirac spin liquids
Xue-Yang Song, Yin-Chen He, Ashvin Vishwanath +1
The interplay of symmetry and topology has been at the forefront of recent progress in quantum matter. Here we uncover an unexpected connection between band topology and the descri…
A strongly correlated metal built from Sachdev-Ye-Kitaev models
Xue-Yang Song, Chao-Ming Jian, Leon Balents
Strongly correlated metals comprise an enduring puzzle at the heart of condensed matter physics. Commonly a highly renormalized heavy Fermi liquid occurs below a small coherence sc…