4 papers
flux quantization in metals due to Berry phase coherence
Chandra M. Varma
Berry curvature does not show itself in the relative phase correlation of wave-functions at different spatial points in a metal unless the fermions have closed trajectories in mome…
Time-dependent correlations of the Edwards-Anderson order parameter above the spin-glass transition
Jingjin Song, Sheena K. K. Patel, Rupak Bhattacharya +11
In 1975 Edwards and Anderson introduced a new paradigm that interacting quenched systems, such as a spin-glass, have a phase transition in which long time memory of spatial pattern…
Universality and Crossovers for Quantum-Criticality in 2d metals
Chandra M. Varma
A simple generalization of the theory of crossovers in classical-criticality to quantum-criticality gives that, a Heisenberg model with a small anisotropy favoring planar order has…
Quantum-criticality and superconductivity in twisted transition metal di-chalcogenides
A. V. Chubukov, C. M. Varma
We analyze a model for electronic structure and interactions in twisted transition metal chalcogenide WSe for superconductivity. In this material, spin-orbit scattering locks t…