203 citations · 802 across the 38 of their papers we have counts for
39 papers
Strong Dimerization and Field-Induced Reconstruction of the Low-Energy Spectrum in
Sk Saniur Rahaman, S. R. Hassan
We investigate the field-dependent low-energy thermodynamics of the distorted triangular quantum antiferromagnet using a sector-res…
Covariance Geometry of Basis-Resolved Low-Energy Wavefunctions in the Spin- Kitaev--Heisenberg Model
Sk Saniur Rahaman, S. R. Hassan
We develop a basis-resolved covariance framework for investigating the organization of low-energy many-body wavefunctions in the spin- Kitaev--Heisenberg model. By constructin…
Anomalous transport in itinerant van der Waals ferromagnets FeGeTe (\emph{n}=3, 4, 5)
Jyotirmoy Sau, S. R. Hassan, Nitesh Kumar +1
Ferromagnetic (FM) semimetals FeGeTe(n=3, 4, 5), exhibit several symmetry-protected band-crossing points or lines near the Fermi energy (E) and these topological proper…
A Tale of Two Quantum Compass Models
Soumya Sur, M. S. Laad, Arya Subramonian +1
We investigate two variants of quantum compass models (QCMs). The first, an orbital-only honeycomb QCM, is shown to exhibit a quantum phase transition (QPT) from a - to -or…
Stripping the planar Quantum Compass Model to its basics
Soumya Sur, M. S. Laad, S. R. Hassan
We introduce a novel mean-field theory (MFT) around the exactly soluble two-leg ladder limit for the planar quantum compass model (QCM). In contrast to usual MFT, our construction…
Theory of Optimal Transport and the Structure of Many-Body States
S. R. Hassan, Ankita Chakrabarti, R. Shankar
There has been much work in the recent past in developing the idea of quantum geometry to characterize and understand the structure of many-particle states. For mean-field states,…