32 citations · 51 across the 4 of their papers we have counts for
11 papers
Magnetization of Quantum Dots: A Measure of Anisotropy and the Rashba Interaction
Siranush Avetisyan, Tapash Chakraborty, Pekka Pietilainen
The magnetization of anisotropic quantum dots in the presence of the Rashba spin-orbit interaction has been studied for three interacting electrons in the dot. We observe unique be…
Fractional Quantum Hall Effect in Hofstadter Butterflies of Dirac Fermions
Areg Ghazaryan, Tapash Chakraborty, Pekka Pietilainen
We report on the influence of a periodic potential on the fractional quantum Hall effect (FQHE) states in monolayer graphene. We have shown that for two values of the magnetic flux…
Super-intense highly anisotropic optical transitions in anisotropic quantum dots
Siranush Avetisyan, Pekka Pietiläinen, Tapash Chakraborty
Coulomb interaction among electrons is found to have profound effects on the electronic properties of anisotropic quantum dots in a perpendicular external magnetic field, and in th…
Strong Enhancement of Rashba spin-orbit coupling with increasing anisotropy in the Fock-Darwin states of a quantum dot
Siranush Avetisyan, Pekka Pietiläinen, Tapash Chakraborty
We have investigated the electronic properties of elliptical quantum dots in a perpendicular external magnetic field, and in the presence of the Rashba spin-orbit interaction. Our…
Tuning of the Gap in a Laughlin-Bychkov-Rashba Incompressible Liquid
Marco Califano, Tapash Chakraborty, and Pekka Pietiläinen
We report on our investigation of the influence of Bychkov-Rashba spin-orbit interaction (SOI) on the incompressible Laughlin state. We find that experimentally obtainable values o…
Theory of the Half-Polarized Quantum Hall States
V. M. Apalkov, T. Chakraborty, P. Pietilainen +1
We report a theoretical analysis of the half-polarized quantum Hall states observed in a recent experiment. Our numerical results indicate that the ground state energy of the quant…