384 citations · 1.5k across the 46 of their papers we have counts for
10 papers · 1 filter
Polaronic mechanism of Nagaoka ferromagnetism in Hubbard models
Rhine Samajdar, R. N. Bhatt
The search for elusive Nagaoka-type ferromagnetism in the Hubbard model has recently enjoyed renewed attention with the advent of a variety of experimental platforms enabling its r…
Connection between Fermi contours of zero-field electrons and composite fermions in two-dimensional systems
Matteo Ippoliti, Scott D. Geraedts, R. N. Bhatt
We investigate the relation between the Fermi sea (FS) of zero-field carriers in two-dimensional systems and the FS of the corresponding composite fermions which emerge in a high m…
Numerical study of anisotropy in a composite Fermi liquid
Matteo Ippoliti, Scott D. Geraedts, R. N. Bhatt
We perform density-matrix renormalization group studies of a two-dimensional electron gas in a high magnetic field and with an anisotropic band mass. At half-filling in the lowest…
Matrix-Product-State Algorithm for Finite Fractional Quantum Hall Systems
Zhao Liu, R. N. Bhatt
Exact diagonalization is a powerful tool to study fractional quantum Hall (FQH) systems. However, its capability is limited by the exponentially increasing computational cost. In o…
Characterization of quasiholes in fractional Chern insulators
Zhao Liu, R. N. Bhatt, Nicolas Regnault
We provide a detailed study of the Abelian quasiholes of bosonic fractional quantum Hall states on the torus geometry and in fractional Chern insulators. We find that the d…
Quasiholes of 1/3 and 7/3 quantum Hall states: size estimates via exact diagonalization and density-matrix renormalization group
Sonika Johri, Zlatko Papić, R. N. Bhatt +1
We determine the size of the elementary quasihole in and quantum Hall states via exact-diagonalization and density-matrix renormalization group calculations on the…
The Universal Edge Physics in Fractional Quantum Hall Liquids
Zi-xiang Hu, R. N. Bhatt, Xin Wan +1
The chiral Luttinger liquid theory for fractional quantum Hall edge transport predicts universal power-law behavior in the current-voltage (-) characteristics for electrons t…
Realizing Universal Edge Properties in Graphene Fractional Quantum Hall Liquids
Zi-Xiang Hu, R. N. Bhatt, Xin Wan +1
Universal chiral Luttinger liquid behavior has been predicted for fractional quantum Hall edge states, but so far has not been observed experimentally in semiconductor-based two-di…
Hopping Conduction in Uniaxially Stressed Si:B near the Insulator-Metal Transition
s. Bogdanovich, D. Simonian, S. V. Kravchenko +2
Using uniaxial stress to tune the critical density near that of the sample, we have studied in detail the low-temperature conductivity of p-type Si:B in the insulating phase very n…
Scaling of the Conductivity with Temperature and Uniaxial Stress in Si:B at the Metal-Insulator Transition
S. Bogdanovich, M. P. Sarachik, R. N. Bhatt
Using uniaxial stress to tune Si:B through the metal-insulator transition we find the conductivity at low temperatures shows an excellent fit to scaling with temperature and stress…