332 citations · 1.9k across the 66 of their papers we have counts for
13 papers · 1 filter
Cosine Edge Mode in a Periodically Driven Quantum System
Indubala I. Satija, Erhai Zhao
Time-periodic (Floquet) topological phases of matter exhibit bulk-edge relationships that are more complex than static topological insulators and superconductors. Finding the edge…
Floquet edge states in a harmonically driven integer quantum Hall system
Zhenyu Zhou, Indubala I. Satija, Erhai Zhao
Recent theoretical work on time-periodically kicked Hofstadter model found robust counter-propagating edge modes. It remains unclear how ubiquitously such anomalous modes can appea…
Solitons in a hard-core bosonic system: Gross-Pitaevskii type and beyond
Radha Balakrishnan, Indubala I Satija
A unified formulation that obtains solitary waves for various background densities in the Bose-Einstein condensate of a system of hard-core bosons with nearest neighbor attractive…
Counter-propagating edge modes and topological phases of a kicked quantum Hall system
Mahmoud Lababidi, Indubala I. Satija, Erhai Zhao
A periodically driven quantum Hall system in a fixed magnetic field is found to exhibit a series of phases featuring anomalous edge modes with the "wrong" chirality. This leads to…
Soliton dynamics of an atomic spinor condensate on a Ring Lattice
Indubala I Satija, Carlos L. Pando, Eite Tiesinga
We study the dynamics of macroscopically-coherent matter waves of an ultra-cold atomic spin-one or spinor condensate on a ring lattice of six sites and demonstrate a novel type of…
Topological Insulators with Ultracold Atoms
Indubala I Satija, Erhai Zhao
Ultracold atom research presents many avenues to study problems at the forefront of physics. Due to their unprecedented controllability, these systems are ideally suited to explore…
Noise Correlation Scalings: Revisiting the Quantum Phase Transition in Incommensurate Lattices with Hard-Core Bosons
Kai He, Indubala I. Satija, Charles W. Clark +2
Finite size scalings of the momentum distribution and noise correlations are performed to study Mott insulator, Bose glass, and superfluid quantum phases in hard-core bosons (HCBs)…
Chern numbers hiding in time-of-flight images
Erhai Zhao, Noah Bray-Ali, Carl J. Williams +2
We present a technique for detecting topological invariants -- Chern numbers -- from time-of-flight images of ultra-cold atoms. We show that the Chern numbers of integer quantum Ha…
Realistic Time-Reversal Invariant Topological Insulators With Neutral Atoms
N. Goldman, I. Satija, P. Nikolic +4
We lay out an experiment to realize time-reversal invariant topological insulators in alkali atomic gases. We introduce an original method to synthesize a gauge field in the near-f…
The Gross-Pitaevskii Soliton: Relating Weakly and Strongly Repulsive Bosonic condensates and the magnetic soliton
Indubala I Satija, Radha Balakrishnan
We show that the dark soliton of the Gross-Pitaevskii equation (GPE) that describes the Bose-Einstein condensate (BEC) density of a system of weakly repulsive bosons, also describe…
Exploring complex phenomena using ultracold atoms in bichromatic lattices
Shuming Li, Indubala I Satija, Charles W. Clark +1
With an underlying common theme of competing length scales, we study the many-body Schrödinger equation in a quasiperiodic potential and discuss its connection with the Kolmogorov-…
Engineering Time-Reversal Invariant Topological Insulators With Ultra-Cold Atoms
N. Goldman, I. Satija, P. Nikolic +4
Topological insulators are a broad class of unconventional materials that are insulating in the interior but conduct along the edges. This edge transport is topologically protected…
Particle-Hole Asymmetry and Brightening of Solitons in A Strongly Repulsive BEC
Radha Balakrishnan, Indubala I. Satija, Charles W. Clark
We study solitary wave propagation in the condensate of a system of hard-core bosons with nearest-neighbor interactions. For this strongly repulsive system, the evolution equation…