302 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Indian Institute of Science Education and Research MohaliIN223 papers
- Indian Institute of Science Education and Research KolkataIN203 papers
- Rutherford Appleton LaboratoryGB194 papers
- Indian Institute of Science Education and Research, TirupatiIN191 papers
- Tata Institute of Fundamental ResearchIN191 papers
- Indian Institute of Science Education and Research BerhampurIN190 papers
- Texas A&M UniversityUS185 papers
- Purdue University West LafayetteUS184 papers
- Panjab UniversityIN183 papers
- Tsinghua UniversityCN183 papers
- Wayne State UniversityUS183 papers
- Eötvös Loránd UniversityHU182 papers
60 papers · 1 filter
Dynamics of impurity in the environment of Dirac fermions
Ajit Kumar Sorout, Surajit Sarkar, Suhas Gangadharaiah
We study the dynamics of a non-magnetic impurity interacting with the surface states of a 3D and 2D topological insulator. Employing the linked cluster technique we develop a forma…
Interplay of disorder and interactions in a flat-band supporting diamond chain
Nilanjan Roy, Ajith Ramachandran, Auditya Sharma
We systematically study the effect of disorder and interactions on a quasi-one dimensional diamond chain possessing flat bands. Disorder localizes all the single particle eigenstat…
Drive-induced many-body localization and coherent destruction of Stark many-body localization
Devendra Singh Bhakuni, Ritu Nehra, Auditya Sharma
We study the phenomenon of many-body localization (MBL) in an interacting system subjected to a combined DC as well as a square wave AC electric field. First, the condition for the…
Exact Solutions and Constraints on the Dark Energy Model in FRW Universe
Albin Joseph, Rajib Saha
The inflationary epoch and the late time acceleration of the expansion rate of universe can be explained by assuming a gravitationally coupled scalar field. In this article, we pro…
Geometric Planar Networks on Bichromatic Points
Sayan Bandyapadhyay, Aritra Banik, Sujoy Bhore +1
We study three classical graph problems - Hamiltonian path, minimum spanning tree, and minimum perfect matching on geometric graphs induced by bichromatic (red and blue) points. Th…
On the length scale dependence of DNA conformational change under local perturbation
Soumyadip Banerjee, Kushal Shah, Shaunak Sen
Conformational change of a DNA molecule is frequently observed in multiple biological processes and has been modelled using a chain of strongly coupled oscillators with a nonlinear…
Flat bands and entanglement in the Kitaev ladder
Ritu Nehra, Devendra Singh Bhakuni, Ajith Ramachandran +1
We report the existence of \emph{flat bands} in a p-wave superconducting Kitaev ladder. We identify two sets of parameters for which the Kitaev ladder sustains flat bands. These fl…
Dirac neutrinos from Peccei-Quinn symmetry: a fresh look at the axion
Eduardo Peinado, Mario Reig, Rahul Srivastava +1
We show that a very simple solution to the strong CP problem naturally leads to Dirac neutrinos. Small effective neutrino masses emerge from a type I Dirac seesaw mechanism. Neutri…
Investigations of the superconducting ground state of ZrIr: Introducing a new noncentrosymmetric superconductor
Sajilesh. K. P., D. Singh, P. K. Biswas +3
Superconductivity in materials whose crystal structure lacks inversion symmetry is a prime candidate for unconventional superconductivity. A new noncentrosymmetric compound Zr$_{3}…
Tailoring the Phase Transition and Electron-Phonon Coupling in 1T'-MoTe2 by Charge Doping: A Raman Study
Suvodeep Paul, Saheb Karak, Manasi Mandal +4
Transition metal dichalcogenides (TMDs) are a class of widely studied 2D layered materials which exist in various polymorphs. The 1T' phase of MoTe2 is of prime importance as it ha…
Coexistence of type-I and type-II superconductivity signatures in ZrB12 probed by muon spin rotation measurements
P. K. Biswas, F. N. Rybakov, R. P. Singh +8
Superconductors usually display either type-I or type-II superconductivity and the coexistence of these two types in the same material, for example at different temperatures is rar…
An independent search for annual modulation and its significance in ANAIS-112 data
Aditi Krishak, Shantanu Desai
We perform an independent search for sinusoidal-based modulation in the recently released ANAIS-112 data, which could be induced by dark matter scatterings. We then evaluate this h…
Hamiltonian Formalism for Nonlocal Gravity Models
Pawan Joshi, Utkarsh Kumar, Sukanta Panda
Nonlocal gravity models are constructed to explain the current acceleration of the universe. These models are inspired by the infrared correction appearing in Einstein Hilbert acti…
Transport in a long-range Kitaev ladder: role of Majorana and subgap Andreev states
Ritu Nehra, Auditya Sharma, Abhiram Soori
We study local and non-local transport across a two-leg long-range Kitaev ladder connected to two normal metal leads. We focus on the role of the constituent Majorana fermions and…
Beating to rotational transition of a clamped active ribbon-like filament
Shalabh K. Anand, Raghunath Chelakkot, Sunil P. Singh
We present a detailed study of a clamped ribbon-like filament under a compressive active force using Brownian dynamics simulations. We show that a clamped ribbon-like filament is a…
Entanglement and thermodynamic entropy in a clean many-body-localized system
Devendra Singh Bhakuni, Auditya Sharma
Whether or not the thermodynamic entropy is equal to the entanglement entropy of an eigenstate, is of fundamental interest, and is closely related to the `Eigenstate thermalization…
Gravitational footprints of massive neutrinos and lepton number breaking
Andrea Addazi, Antonino Marcianò, António P. Morais +3
We investigate the production of primordial Gravitational Waves (GWs) arising from First Order Phase Transitions (FOPTs) associated to neutrino mass generation in the context of ty…
Quantum Mechanics of Plancherel Growth
Arghya Chattopadhyay, Suvankar Dutta, Debangshu Mukherjee +1
Growth of Young diagrams, equipped with Plancherel measure, follows the automodel equation of Kerov. Using the technology of unitary matrix model we show that such growth process i…
A theory for scotogenic dark matter stabilised by residual gauge symmetry
Julio Leite, Oleg Popov, Rahul Srivastava +1
Dark matter stability can result from a residual matter-parity symmetry, following naturally from the spontaneous breaking of the gauge symmetry. Here we explore this idea in the c…
Effect of rotation and magnetic field in the gyroscopic precession around a neutron star
Kamal Krishna Nath, Ritam Mallick
We study the overall spin precession frequency of a test gyroscope around a neutron star. The precession of the test gyroscope gives the signatures of the general relativistic effe…
Geometric phases for finite-dimensional systems -- the roles of Bargmann Invariants, Null Phase Curves and the Schwinger Majorana SU(2) framework
K S Akhilesh, Arvind, S Chaturvedi +2
We present a study of the properties of Bargmann Invariants (BI) and Null Phase Curves (NPC) in the theory of the geometric phase for finite dimensional systems. A recent suggestio…
Muon spin rotation and neutron scattering investigations of the B-site ordered double perovskite Sr2DyRuO6
D. T. Adroja, Shivani Sharma, C. Ritter +7
The magnetic ground state of double perovskite Sr2DyRuO6 has been investigated using muon spin rotation and relaxation (muSR), neutron powder diffraction (NPD) and inelastic neutro…
Equivalent Dual Theories for 3D N=2 Supergravity
Nabamita Banerjee, Saurish Khandelwal, Parita Shah
N=2 three dimensional Supergravity with internal symmetry generators can be understood as a two dimensional chiral Wess-Zumino-Witten model. In this paper, we present the reduc…
Magnetization reversal, giant exchange bias effect and magnetoresistance in oxygen vacancy ordered SrFeCoO
Prachi Mohanty, Sourav Marik, C. Madhu +3
We report the structural, magnetic, exchange bias and magnetotransport effect in SrFeCoO. The material crystallizes in the orthorhombic space gro…