196 citations · 601 across the 14 of their papers we have counts for
14 papers
Postselection-induced localization and coherence in quantum walks on heterogeneous networks
Adithya L J, Suraj S Hegde, Chandrakala Meena
Postselection of quantum trajectories is known effectively introduce nonlinearity into dynamics of open quantum systems. We study the effect of such non-linearity in continuous-tim…
Edge-selective extremal damping from topological heritage of dissipative Chern insulators
Suraj S. Hegde, Toni Ehmcke, Tobias Meng
One of the most important practical hallmarks of topological matter is the presence of topologically protected, exponentially localised edge states at interfaces of regions charact…
Black hole mirages: electron lensing and Berry curvature effects in inhomogeneously tilted Weyl semimetals
Andreas Haller, Suraj Hegde, Chen Xu +3
We study electronic transport in Weyl semimetals with spatially varying nodal tilt profiles. We find that the flow of electrons can be guided precisely by judiciously chosen tilt p…
Interplay of Disorder and Point-Gap Topology: Chiral Modes, Localization and Non-Hermitian Anderson Skin Effect in One Dimension
Ronika Sarkar, Suraj S. Hegde, Awadhesh Narayan
Symmetry-protected spectral topology in non-Hermitian systems has interesting manifestations such as dynamically anomalous chiral currents and skin effect. We study the interplay b…
Theory of Competing Charge Density Wave, Kekule and Antiferromagnetic ordered Fractional Quantum Hall states in Graphene aligned with Boron Nitride
Suraj S. Hegde, Inti Sodemann Villadiego
We investigate spin and valley symmetry-broken fractional quantum Hall phases within a formalism that naturally extends the paradigm of quantum Hall ferromagnetism from integer to…
Chiral metals and entrapped insulators in a one-dimensional topological non-Hermitian system
Ayan Banerjee, Suraj S. Hegde, Adhip Agarwala +1
In this work we study many-body 'steady states' that arise in the non-Hermitian generalisation of the non-interacting Su-Schrieffer-Heeger model at a finite density of fermions. We…
Physics of the Inverted Harmonic Oscillator: From the lowest Landau level to event horizons
Varsha Subramanyan, Suraj S. Hegde, Smitha Vishveshwara +1
In this work, we present the inverted harmonic oscillator (IHO) Hamiltonian as a paradigm to understand the quantum mechanics of scattering and time-decay in a diverse set of physi…
Observation of tunable mobility edges in generalized Aubry-André lattices
Fangzhao Alex An, Karmela Padavić, Eric J. Meier +5
Using synthetic lattices of laser-coupled atomic momentum modes, we experimentally realize a recently proposed family of nearest-neighbor tight-binding models having quasiperiodic…
A topological Josephson junction platform for creating, manipulating, and braiding Majorana bound states
Suraj S. Hegde, Guang Yue, Yuxuan Wang +3
As part of the intense effort towards identifying platforms in which Majorana bound states can be realized and manipulated to perform qubit operations, we propose a topological Jos…
Quasinormal Modes and Hawking-Unruh effect in Quantum Hall Systems: Lessons from Black Hole Phenomena
Suraj S. Hegde, Varsha Subramanyan, Barry Bradlyn +1
In this work, we propose the quantum Hall system as a platform for exploring black hole phenomena. By exhibiting deep rooted commonalities between lowest Landau level and spacetime…
Topological phases, edge modes, and the Hofstadter butterfly in coupled Su-Schrieffer-Heeger systems
Karmela Padavić, Suraj S Hegde, Wade DeGottardi +1
Motivated by recent experimental realizations of topological edge states in Su-Schrieffer-Heeger (SSH) chains, we theoretically study a ladder system whose legs are comprised of tw…
Majorana wavefunction oscillations, fermion parity switches, and disorder in Kitaev chains
Suraj Hegde, Smitha Vishveshwara
We study the decay and oscillations of Majorana fermion wavefunctions and ground state (GS) fermion parity in one-dimensional topological superconducting lattice systems. Using a M…
Quench dynamics and parity blocking in Majorana wires
Suraj Hegde, Vasudha Shivamoggi, Smitha Vishveshwara +1
We theoretically explore quench dynamics in a finite-sized topological fermionic p-wave superconducting wire with the goal of demonstrating that topological order can have marked e…
Analytical Theory of Optical Black Hole Analogues
Suraj S. Hegde, C. V. Vishveshwara
We develop an analytical formalism for studying optical analogues of spherically symmetric black-hole spacetimes. We demonstrate the exact similarity between the electromagnetic wa…