362 citations · 374 across the 15 of their papers we have counts for
15 papers
Distinguishing Quantum Capacitance Signatures of a Topological Majorana Wire from a Normal Wire Segment
Binayyak Bhusan Roy, Jay Deep Sau, Sumanta Tewari
Majorana zero modes (MZMs) are spatially separated, near-zero-energy excitations expected at the ends of a topological superconducting (TS) wire. A quantum-dot interferometer can b…
MEDA: Measurement-Efficient Disorder-Aware Majorana Zero Mode Detection in Realistic Devices
Nathan Jones, Binayyak Roy, Valentine Mohaugen +4
Fault-tolerant topological quantum computing relies on identifying Majorana zero modes (MZMs), but reliable detection in realistic devices remains challenging. Conventional topolog…
Floquet-Engineered Parity Anomaly Staircase in a Cold Atom Dirac Lattice
Binayyak Roy, Vito Scarola, Sumanta Tewari
We propose a Floquet-engineered cold atom realization of a parity anomaly inspired anomalous Hall staircase in a two dimensional -flux lattice. The effective model hosts massive…
Intrinsic anomalous thermal hall effect as a signature of quantum metric in d-wave altermagnets
Rishi G. Gopalakrishnan, Srimayi Korrapati, Sumanta Tewari
We investigate the intrinsic anomalous thermal Hall effect in d-wave altermagnets, where a transverse heat current is generated by a longitudinal temperature gradient in the absenc…
Quantum Inductance as a Phase-Sensitive Probe of Fermion Parity Switching in Majorana Nanowires
Binayyak B. Roy, Jay D. Sau, Sumanta Tewari
We study the flux-dependent quantum inductance of a one-dimensional (1D) semiconductor-superconductor (SM-SC) Majorana nanowire coupled to a quantum dot in an interferometric setup…
Pfaffian-based topological invariants for one dimensional semiconductor-superconductor heterostructures
Binayyak B. Roy, William B. Cason, Nimish Sharma +1
We review the Pfaffian-based topological invariants in one dimensional semiconductor-superconductor (SM-SC) nanowire heterostructures and clarify their validity in f…
Electric field induced Berry curvature dipole and non-linear anomalous Hall effects in higher wave symmetric unconventional magnets
Srimayi Korrapati, Snehasish Nandy, Sumanta Tewari
We investigate the second-order anomalous Hall response in two-dimensional higher-wave symmetric magnets, including the recently discovered class of collinear magnets known as alte…
Majorana modes in graphene strips: polarization, wavefunctions, disorder, and Andreev states
Shubhanshu Karoliya, Sumanta Tewari, Gargee Sharma
Topologically protected Majorana zero modes (MZMs) have attracted intense interest due to their potential application in fault-tolerant quantum computation (TQC). Graphene nanoribb…
Topological invariant for finite systems in the presence of disorder
Robert Eissele, Binayyak B. Roy, Sumanta Tewari +1
Topological invariants, rigorously defined only in the thermodynamic limit, have been generalized to topological indicators applicable to finite-size disordered systems. However, i…
Antibonding and Electronic Instabilities in GdRu2X2 (X = Si, Ge, Sn): A New Pathway Toward Developing Centrosymmetric Skyrmion Materials
Dasuni N. Rathnaweera, Xudong Huai, K. Ramesh Kumar +4
Chemical bonding is key to unlocking the potential of magnetic materials for future information technology. Magnetic skyrmions are topologically protected nano-sized spin textures…
Approximate half-integer quantization in anomalous planar transport in -wave altermagnets
Srimayi Korrapati, Snehasish Nandy, Sumanta Tewari
We investigate anomalous planar transport phenomena in a recently identified class of collinear magnetic materials known as -wave altermagnets. The anomalous planar effects mani…
Chiral Anomaly Induced Transverse Planar Transport Phenomena in Three Dimensional Spin-Orbit Coupled Metals
Rishi G. Gopalakrishnan, Binayyak B. Roy, Gargee Sharma +1
We investigate linear and nonlinear transverse planar transport phenomena (viz. linear and nonlinear Hall and Nernst coefficients) induced by chiral anomaly in three-dimensional sp…
Majorana polarization in disordered heterostructures
Shubhanshu Karoliya, Sumanta Tewari, Gargee Sharma
Recent studies propose Majorana polarization (MP) as a tool for identifying topological Majorana bound states (MBS). We analyze MP in two systems: a one-dimensional (1d) semiconduc…
Chiral anomaly as origin of planar Hall effect in Weyl semimetals
S. Nandy, Gargee Sharma, A. Taraphder +1
In condensed matter physics, the term "chiral anomaly" implies the violation of the separate number conservation laws of Weyl fermions of different chiralities in the presence of p…
Suppression of Hall number due to charge density wave order in high- cuprates
Gargee Sharma, S. Nandy, A. Taraphder +1
Understanding the pseudogap phase in hole-doped high temperature cuprate superconductors remains a central challenge in condensed matter physics. From a host of recent experiments…