116 citations · 198 across the 5 of their papers we have counts for
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Renormalization group study of the conductances of interacting quantum wire systems with different geometries
Sourin Das, Sumathi Rao, Diptiman Sen
We examine the effect of interactions between the electrons on the conductances of some systems of quantum wires with different geometries. The systems include a wire with a stub i…
Dynamics and transport properties of Kondo insulators
N. S. Vidhyadhiraja, Victoria E. Smith, David E. Logan +1
A many-body theory of paramagnetic Kondo insulators is described, focusing specifically on single-particle dynamics, scattering rates, d.c. transport and optical conductivities. Th…
Gapless line for the anisotropic Heisenberg spin-1/2 chain in a magnetic field and the quantum axial next-nearest-neighbor Ising Chain
Amit Dutta, Diptiman Sen
We study the anisotropic Heisenberg (XYZ) spin-1/2 chain placed in a magnetic field pointing along the x-axis. We use bosonization and a renormalization group analysis to show that…
Gapless Phase in the XYZ Spin-1/2 Chain in a Magnetic Field and the Quantum ANNNI Chain
Amit Dutta, Diptiman Sen
We study the XYZ spin-1/2 chain placed in a magnetic field pointing along the x-axis. We use bosonization and a renormalization group analysis to show that the model has a non-triv…
Exact and Approximate Theoretical Techniques for Quantum Magnetism in Low Dimensions
Swapan K. Pati, S. Ramasesha, Diptiman Sen
Quantum magnetism in low dimensions has been one of the central areas of theoretical research for many decades now. One of the key reasons for the long standing interest in this fi…