177 citations · 504 across the 10 of their papers we have counts for
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Quantum Impurity in a Nearly Critical Two Dimensional Antiferromagnet
Subir Sachdev, Chiranjeeb Buragohain, Matthias Vojta
We describe the spin dynamics of an arbitrary localized impurity in an insulating two dimensional antiferromagnet, across the host transition from a paramagnet with a spin gap to a…
Impurity spin dynamics in 2D antiferromagnets and superconductors
Matthias Vojta, Chiranjeeb Buragohain, Subir Sachdev
We discuss the universal theory of localized impurities in the paramagnetic state of 2D antiferromagnets where the spin gap is assumed to be significantly smaller than a typical ex…
Quantum impurity dynamics in two-dimensional antiferromagnets and superconductors
Matthias Vojta, Chiranjeeb Buragohain, Subir Sachdev
We present the universal theory of arbitrary, localized impurities in a confining paramagnetic state of two-dimensional antiferromagnets with global SU(2) spin symmetry. The energy…
Intermediate temperature dynamics of one-dimensional Heisenberg antiferromagnets
Chiranjeeb Buragohain, Subir Sachdev
We present a general theory for the intermediate temperature (T) properties of Heisenberg antiferromagnets of spin-S ions on p-leg ladders, valid for 2Sp even or odd. Following an…