50 citations · 111 across the 8 of their papers we have counts for
8 papers
Quantum geometric anomalous Hall response in orbitally nonunitary superconductors
Viktor Frilen, Annica M. Black-Schaffer, Ankita Bhattacharya
We investigate the anomalous Hall response (AHR) in a multiband superconductor at optical frequencies, a phenomenon intimately related to the polar Kerr effect, a key probe of time…
Nonuniform superconducting states from Majorana flat bands
Sushanth Varada, Aksel Kobiałka, Ankita Bhattacharya +2
Zero-energy flat bands within the superconducting gap can give rise to competing ordered phases. We investigate such phases in topological superconductors based on the magnetic ada…
Stability of Bogoliubov Fermi Surfaces within BCS Theory
Ankita Bhattacharya, Carsten Timm
It has recently been realized that the gap nodes of multiband superconductors that break time-reversal symmetry generically take the form of Fermi surfaces of Bogoliubov quasiparti…
Bogoliubov Fermi surfaces from pairing of emergent fermions on the pyrochlore lattice
Shingo Kobayashi, Ankita Bhattacharya, Carsten Timm +1
We examine the appearance of superconductivity in the strong-coupling limit of the Hubbard model on the pyrochlore lattice. We focus upon the limit of half filling, where the norma…
Symmetry, nodal structure, and Bogoliubov Fermi surfaces for nonlocal pairing
Carsten Timm, Ankita Bhattacharya
Multiband effects can lead to fundamentally different electronic behavior of solids, as exemplified by the possible emergence of Fermi surfaces of Bogoliubov quasiparticles in cent…
Photoinduced spin-Hall resonance in a k^3-Rashba spin-orbit coupled two dimensional hole system
Ankita Bhattacharya, SK Firoz Islam
We study the band structure modulation and spin-Hall effect of a two-dimensional heavy-hole system with -Rashba spin-orbit coupling (RSOC), irradiated by linearly polarized li…
Flat bands and nontrivial topological properties in an extended Lieb lattice
Ankita Bhattacharya, Biplab Pal
We report the appearance of multiple numbers of completely flat band states in an extended Lieb lattice model in two dimensions with five atomic sites per unit cell. We also show t…
Particle scattering by harmonically trapped Bose and Fermi gases
Ankita Bhattacharya, Samir Das, Shyamal Biswas
We have analytically explored the quantum phenomenon of particle scattering by harmonically trapped Bose and Fermi gases with the short ranged (Fermi-Huang [1]) interaction…