24 citations · 179 across the 35 of their papers we have counts for
39 papers
Plasmon modes in three-dimensional multifold semimetals. I. Triple-point semimetal, its quadratic cousin, and Hopf semimetal
Ipsita Mandal
We study collective charge excitations in pseudospin-1 triple-point semimetals within the random-phase approximation, considering both the linearised model with a flat-band and its…
Plasmon modes in tilted three-dimensional nodal-ring semimetals. II. Vortex nodal ring
Ipsita Mandal
We investigate collective charge excitations in three-dimensional semimetals with dipole-like Berry-curvature (BC) profiles, focusing on vortex nodal-ring semimetals (VNRs) and Hop…
Plasmon modes in tilted three-dimensional nodal-ring semimetals. I. -symmetric nodal ring and its gapped cousin
Ipsita Mandal
We study collective charge excitations in three-dimensional -symmetric nodal-ring semimetals (PTNRs) and their gapped counterparts (GNRs) in the presence of band tilt…
Direction-dependent magnetoelectric conductivity from dipolar topological semimetals
Firdous Haidar, Ipsita Mandal
We compute the linear magnetoelectric conductivity of a two-band vortex nodal-ring (VNR) semimetal and a three-band Hopf semimetal (HSM) within the semiclassical Boltzmann formalis…
Floquet scattering and Fano resonances in nodal-ring and multi-Weyl semimetals: Role of propagating and evanescent modes
Sandip Bera, Ipsita Mandal
We develop a comprehensive Floquet scattering theory for quantum transport in periodically driven nodal-ring semimetals (NRSs) and multi-Weyl semimetals (mWSMs), extending our earl…
Magnetoconductivity of two-dimensional Dirac cones and gapped nodal-rings under impurity-potentials in the ultraquantum limit
Ipsita Mandal, Sanskar Sharma
We investigate the dc magnetoconductivity of two-dimensional Dirac cones and gapped nodal rings (GNRs) subjected to a perpendicular magnetic field, which quantises the electronic s…
Linear response from tilted Dirac cones under strain-induced pseudomagnetic fields
Sanskar Sharma, Ipsita Mandal
We investigate the transport signatures of pseudo-Landau levels (PLLs) in two-dimensional anisotropic Dirac systems with tilted cones, whose effective bandstructure results from st…
Interplay of strain-induced axial gauge fields and intrinsic band-topology in the magnetoelectric conductivity of gapped nodal rings
Firdous Haidar, Muhammed Jaffar A., Ipsita Mandal
We compute the magnetoelectric conductivity of a semimetal hosting an ideal gapped nodal ring (GNR) in three distinct planar-Hall configurations, in the simultaneous presence of an…
Puiseux series about exceptional singularities dictated by symmetry-allowed Hessenberg forms of perturbation matrices
Ipsita Mandal
We develop a systematic framework for determining the nature of exceptional points of order (EPs) in non-Hermitian (NH) systems, represented by complex square matr…
Unconventional magnetoelectric conductivity and electrochemical response from dipole-like sources of Berry curvature
Ipsita Mandal
We investigate the longitudinal magnetoelectric conductivity and nonlinear electrochemical response (ECR) of three-dimensional nodal-ring semimetals, including vortex nodal-rings (…
Fermi arcs for generic nodal points hosting monopoles or dipoles
Ipsita Mandal
Surface-localised states in the form of Fermi arcs emerge at the interfaces between three-dimensional topological semimetals and their surrounding vacuum, serving as primary signat…
Hong-Ou-Mandel interferometry for fractional excitations: Unified framework and dip width scaling
Aleksander Latyshev, Imen Taktak, Ipsita Mandal +1
Extending Hong--Ou--Mandel (HOM) interferometry to the fractional quantum Hall effect (FQHE) promises direct access to anyonic statistics, yet remains challenging: on-demand anyon…
Non-Fermi liquid behaviour of CDW instabilities in fractionally-filled moiré flatbands
Ipsita Mandal
Spin- and valley-polarized fractionally-filled moiré flatbands are known to host emergent Fermi-liquid phases, when analysed with the help of a dual description in terms of holes.…
Distinguishing features of longitudinal magnetoconductivity for a Rarita-Schwinger-Weyl node
Ipsita Mandal
The band-degeneracy points in the Brillouin zones of chiral crystals exist in multiple avatars, with the high-symmetry points being able to host multifold nodes of distinct charact…
Disentangling contributions to longitudinal magnetoconductivity for Kramers-Weyl nodes
Ipsita Mandal
We set out to compute the longitudinal magnetoconductivity for an isolated and isotropic Kramers-Weyl node (KWN), existing in chiral crystals, which forms an exotic cousin of the c…
Longitudinal magnetoconductivity in chiral multifold semimetals exemplified by pseudospin-1 nodal points
Ipsita Mandal
We embark on computing the longitudinal magnetoconductivity within the semiclassical Boltzmann formalism, where an isotropic triple-point semimetal (TSM) is subjected to collinear…
Generic deformation channels for critical Fermi surfaces including the impact of collisions
Kazi Ranjibul Islam, Aditya Savanur, Ipsita Mandal
This paper constitutes a sequel to our theoretical efforts to determine the nature of generic low-energy deformations of the Fermi surface of a quantum-critical metal, which arises…
Effects of time-periodic drive in the linear response for planar-Hall set-ups with Weyl and multi-Weyl semimetals
Ipsita Mandal
We investigate the influence of a time-periodic drive on three-dimensional Weyl and multi-Weyl semimetals in planar-Hall/planar-thermal-Hall set-ups. The drive is modelled here by…
Direction-dependent linear response for gapped nodal-line semimetals in planar-Hall configurations
Fasil Hussain Rather, Firdous Haidar, Muhammed Jaffar A. +1
We compute the magnetoelectric conductivity for ideal nodal-line semimetals (NLSMs), with a finite but tiny mass-gap, in distinct planar-Hall set-ups. Each differing configuration…
Delta-function-potential junctions with quasiparticles occupying tilted bands with quadratic-in-momentum dispersion
Ipsita Mandal
We continue our explorations of the transport characteristics in junction-configurations comprising semimetals with quadratic band-crossings, observed in the bandstructures of both…
Transmission through rectangular potentials in semimetals featuring quadratic dispersion
Ipsita Mandal
We revisit the problem of transmission of quasiparticles through a rectangular potential barrier, for semimetals featuring quadratic-in-momentum band-crossings at a nodal point. Al…
Reflections of topological properties in the planar-Hall response for semimetals carrying pseudospin-1 quantum numbers
Firdous Haidar, Ipsita Mandal
We continue our investigations of the nature of the linear-response tensors in planar-Hall and planar-thermal Hall configurations, involving three-dimensional nodal-point semimetal…
Linear response of tilted anisotropic two-dimensional Dirac cones
Ipsita Mandal
We investigate the behaviour of the linear-response coefficients, when in-plane electric field () or/and temperature gradient () is/are applied on…
Chiral anomaly and internode scatterings in multifold semimetals
Ipsita Mandal
In our quest to unravel the topological properties of nodal points in three-dimensional semimetals, one hallmark property which warrants our attention is the \textit{chiral anomaly…