190 citations · 1.1k across the 74 of their papers we have counts for
76 papers
Transport in multilayer graphene: resistance from stacking faults
C. M. Wilson, R. Ganesh, K. V. Samokhin
Multilayer graphene exhibits rich possibilities for stacking. While natural bulk graphite predominantly occurs in the Bernal structure, where layers are stacked in an patt…
Local-moment magnets on all close-packed lattices are equivalent
Sam Studdy, Alwyn Jose Raja, R. Ganesh
The Heisenberg antiferromagnet on the fcc lattice is a canonical example of frustration. The fcc lattice is but one of an infinite number of close-packed structures, all of which h…
A coupled Eulerian Lagrangian approach for fluid and particle dynamics
Snehanshu Maiti, Rajaraman Ganesh
We present a one-way coupled Eulerian-Lagrangian computational framework for simulating fluid and particle dynamics in two-dimensional incompressible flows. The framework extends t…
Dynamics of phase space vortices in Vlasov plasmas with ion scale inhomogeneity : II Chirped frequency drive study
Sanjeev Kumar Pandey, Amudon Chingangbam, Rajaraman Ganesh
In Part I of the companion paper [Ref Part I], we have extensively discussed about the creation of quasi-stationary ion scale (QSIS) inhomogeneity using a constant frequency extern…
Dynamics of phase space vortices in Vlasov plasmas with ion scale inhomogeneity : I Constant frequency drive study
Sanjeev Kumar Pandey, Amudon Chingangbam, Rajaraman Ganesh
Formation dynamics and stability starting from various phase space vortex (PSV) or Bernstein-Greene-Kruskal (BGK) structures i.e electron acoustic wave (EAW), Langmuir (LAN) waves…
Exact Fractionalized Ground States in an Extended Spin-1 Kitaev Chain
Alwyn Jose Raja, R. Ganesh
Inspired by the Affleck-Kennedy-Lieb-Tasaki (AKLT) model, we present exact solutions for a spin-1 chain with Kitaev-like couplings. We consider an expanded Kitaev model with biline…
Spin-basis wavefunctions for the one-dimensional Kitaev model
Alwyn Jose Raja, Rajesh Narayanan, R. Ganesh
Magnetic phases with quantum entanglement are often expressed in terms of parton wavefunctions. Relatively few examples are known where wavefunctions can be directly written down i…
Interaction of driven "cold" electron plasma wave with thermal bulk mediated by spatial ion inhomogeneity
Sanjeev Kumar Pandey, Rajaraman Ganesh
Using high resolution Vlasov - Poisson simulations, evolution of driven ``cold" electron plasma wave (EPW) in the presence of stationary inhomogeneous background of ions is studied…
The Role of Helical and Non-Helical Drives on the evolution of Self-Consistent Dynamos
Shishir Biswas, Rajaraman Ganesh
In the self-consistent dynamo limit, the magnetic feedback on the velocity field is sufficiently strong to induce a change in the topology of the magnetic field. Consequently, the…
Ice on curved surfaces: defect rings and differential local dynamics
Adhitya Sivaramakrishnan, R. Ganesh
Ice systems are prototypes of locally constrained dynamics. This is exemplified in Coulomb-liquid phases where a large space of configurations is sampled, each satisfying local ice…
Metallic bonding in close packed structures: structural frustration from a hidden gauge symmetry
Eric He, C. M. Wilson, R. Ganesh
Based on its simple valence electron configuration, we may expect lithium to have straightforward physical properties that are easily explained. However, solid lithium, when cooled…
Light-induced charge and spin Hall currents in materials with symmetry
Tohid Farajollahpour, R. Ganesh, Kirill Samokhin
Berry curvature, a momentum space property, can manifest itself in current responses. The well-known anomalous Hall effect in time-reversal-breaking systems arises from a Berry cur…
The high-density regime of dusty plasma: Coulomb plasma
K. Avinash, S. J. Kalita, R. Ganesh +1
It is shown that the dust density regimes in dusty plasma are characterized by two complementary screening processes, (a) the low dust density regime where the Debye screening is t…
Aggregate morphing of self-aligining soft active disks in semi-confined geometry
Anshika Chugh, Soumen De Karmakar, Rajaraman Ganesh
We study the dependence of alignment and confinement on the aggregate morphology of self-aligning soft disks in a planer box geometry confined along y direction. We show that the w…
Pseudo-spectral solver versus grid-based solver: A quantitative accuracy test using GMHD3D and PLUTO4.4
Shishir Biswas, Rajaraman Ganesh
We provide a thorough comparison of the GMHD3D code and the PLUTO4.4 code for both two and three-dimensional hydrodynamic and magnetohydrodynamic problems. The open-source finite-v…
Localization of vibrational modes in high-entropy oxides
C. M. Wilson, R. Ganesh, D. A. Crandles
The recently-discovered high-entropy oxides offer a paradoxical combination of crystalline arrangement and high disorder. They differ qualitatively from established paradigms for d…
Entropic sampling in frustrated magnets: role of self-intersecting spaces
Alwyn Jose Raja, R. Ganesh
Frustrated magnets typically possess a large space of classical ground states. If this degeneracy is not protected by symmetry, thermal fluctuations may `select' certain states via…
Correlations in randomly stacked solids
R. Ganesh, Amna Khairi Nasr
Packing of spheres is a problem with a long history dating back to Kepler's conjecture in 1611. The highest density is realized in face-centred-cubic (FCC) and hexagonal-close-pack…
Effect of flow shear on the onset of dynamos
Shishir Biswas, Rajaraman Ganesh
Understanding the origin and structure of mean magnetic fields in astrophysical conditions is a major challenge. Shear flows often coexist in such astrophysical conditions and the…
Scattering off a junction
Eric Tan, R. Ganesh
Scattering off a potential is a fundamental problem in quantum physics. It has been studied extensively with amplitudes derived for various potentials. In this article, we explore…
Spreading entanglement through pairwise exchange interactions
L. Theerthagiri, R. Ganesh
The spread of entanglement is a problem of great interest. It is particularly relevant to quantum state synthesis, where an initial direct-product state is sought to be converted i…
Bound states without potentials: localization at singularities
Eric He, R. Ganesh
Bound state formation is a classic feature of quantum mechanics, where a particle localizes in the vicinity of an attractive potential. This is typically understood as the particle…
Revisiting Kinematic Fast Dynamo in 3-dimensional magnetohydrodynamic plasmas: Dynamo transition from non-Helical to Helical flows
Shishir Biswas, Rajaraman Ganesh
Dynamos wherein magnetic field is produced from velocity fluctuations are fundamental to our understanding of several astrophysical and/or laboratory phenomena. Though fluid helici…
Ion-driven destabilization of a toroidal electron plasma -- A 3D3VPIC Simulation
Swapnali Khamaru, Rajaraman Ganesh, Meghraj Sengupta
Ion resonance instability of toroidal electron plasmas in a tight aspect ratio axisymmetric toroidal device is reported for ions of different initial density values using…