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Scaling and Crossover Functions for the Conductance in the Directed Network Model of Edge States
Ilya A. Gruzberg, N. Read, Subir Sachdev
We consider the directed network (DN) of edge states on the surface of a cylinder of length L and circumference C. By mapping it to a ferromagnetic superspin chain, and using a sca…
Low temperature spin diffusion in the one-dimensional quantum nonlinear -model
Subir Sachdev, Kedar Damle
An effective, low temperature, classical model for spin transport in the one-dimensional, gapped, quantum non-linear -model is developed. Its correlators are obtained by…
Metallic spin glasses
Subir Sachdev, N. Read
Recent work on the zero temperature phases and phase transitions of strongly random electronic system is reviewed. The transition between the spin glass and quantum paramagnet is e…
Higher dimensional realizations of activated dynamic scaling at random quantum transitions
T. Senthil, Subir Sachdev
We show that many of the unusual properties of the one-dimensional random quantum Ising model are shared also by dilute quantum Ising systems in the vicinity of a certain quantum t…
Low temperature relaxational dynamics of the Ising chain in a transverse field
Subir Sachdev, A. P. Young
We present asymptotically exact results for the real time order parameter correlations of a class of d=1 Ising models in a transverse field at low temperatures (T) on both sides of…
Theory of finite temperature crossovers near quantum critical points close to, or above, their upper-critical dimension
Subir Sachdev
A systematic method for the computation of finite temperature () crossover functions near quantum critical points close to, or above, their upper-critical dimension is devised.…