71 citations · 301 across the 17 of their papers we have counts for
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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…
Renormalization group study of the Kondo problem at a junction of several Luttinger wires
V. Ravi Chandra, Sumathi Rao, Diptiman Sen
We study a system consisting of a junction of N quantum wires, where the junction is characterized by a scalar S-matrix, and an impurity spin is coupled to the electrons close to t…
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…