45 citations · 162 across the 23 of their papers we have counts for
6 papers · 1 filter
Topological exact flat bands in two dimensional materials under periodic strain
Xiaohan Wan, Siddhartha Sarkar, Shi-Zeng Lin +1
We study flat bands and their topology in 2D materials with quadratic band crossing points (QBCPs) under periodic strain. In contrast to Dirac points in graphene, where strain acts…
Dynamics of self-dual kagome metamaterials and the emergence of fragile topology
Pegah Azizi, Siddhartha Sarkar, Kai Sun +1
Recent years have seen the discovery of systems featuring fragile topological states. These states of matter lack certain protection attributes typically associated with topology a…
Mechanical Properties Of Fluctuating Elastic Membranes Under Uni-Axial Tension
Mohamed El Hedi Bahri, Siddhartha Sarkar, Andrej Košmrlj
Atomically thin sheets, such as graphene, are widely used in nanotechnology. Recently they have also been used in applications including kirigami and self-folding origami, where it…
Synthetically Non-Hermitian Nonlinear Wave-like Behavior in a Topological Mechanical Metamaterial
Haning Xiu, Ian Frankel, Harry Liu +6
Topological mechanical metamaterials have enabled new ways to control stress and deformation propagation. Exemplified by Maxwell lattices, they have been studied extensively using…
On the Schur Multiplier of finite -groups of maximal class
Renu Joshi, Siddhartha Sarkar
In this article, we prove that the Schur Multiplier of a finite -group of maximal class of order is elementary abelian. The case settles a q…
Uni-width subgroups, universal elements, and lambda number of finite groups
Siddhartha Sarkar
A cyclic subgroup of a finite group is called a uni-width subgroup of if is the unique cyclic subgroup of of order . In this article, we prove that a finit…