13 citations · 21 across the 3 of their papers we have counts for
4 papers
Exact Haldane mapping for all and super universality in spin chains
A. M. M. Pruisken, R. Shankar, N. Surendran
The low energy dynamics of the anti-ferromagnetic Heisenberg spin chain in the semiclassical limit is known to map onto the O(3) nonlinear model with a ter…
Gapless points of dimerized quantum spin chains: analytical and numerical studies
V. Ravi Chandra, Diptiman Sen, Naveen Surendran
We study the locations of the gapless points which occur for quantum spin chains of finite length (with a twisted boundary condition) at particular values of the nearest neighbor d…
Exact magnetization plateaus and phase transitions in spin-S Heisenberg antiferromagnets in arbitrary dimensions
V. Ravi Chandra, Naveen Surendran
We generalize a class of Heisenberg antiferromagnets in one, two and three dimensions, which have been shown to exhibit magnetization plateaus for spin-1/2. In a certain parameter…
General topological features and instanton vacuum in quantum Hall and spin liquids
A. M. M. Pruisken, R. Shankar, Naveen Surendran
We introduce the concept of super universality in quantum Hall and spin liquids which has emerged from previous studies. It states that all the fundamental features of the quantum…