10 citations · 18 across the 5 of their papers we have counts for
6 papers
A Phase Diagram for Quantum Hall Bilayers with Strong Inter-layer Correlation
Biswajit Karmakar, Vittorio Pellegrini, Aron Pinczuk +2
Inter-layer excitonic coherence in a quantum Hall bilayer with negligible tunneling is monitored by measurements of low-lying spin excitations. At new quasiparticle excita…
Optical Anisotropy of Electronic Excitations in Elliptical Quantum Dots
Achintya Singha, Vittorio Pellegrini, Sokratis Kalliakos +4
The authors report that anisotropic confining potentials in laterally-coupled semiconductor quantum dots (QDs) have large impacts in optical transitions and energies of inter-shell…
Evidence of a first-order quantum phase transition of excitons in electron double layers
Biswajit Karmakar, Vittorio Pellegrini, Aron Pinczuk +2
Complexity in many-particle systems occurs through processes of qualitative differentiation. These are described by concepts such as emerging states with specific symmetries that a…
Metamorphosis of a Quantum Hall Bilayer State into a Composite Fermion Metal
Biswajit Karmakar, Stefano Luin, Vittorio Pellegrini +4
Composite fermion metal states emerge in quantum Hall bilayers at total Landau level filling factor =1 when the tunneling gap collapses by application of in-plane components o…
Probing electrodynamical properties of the edge states in a quantum Hall system by surface photovoltage spectroscopy
B. Karmakar, G. H. Dohler, B. M. Arora
An importent question regarding the dissipation-less current carried by the edge states in a quantum Hall system is understanding the results of the electrodynamical interaction am…
The effects of macroscopic inhomogeneities on the magneto transport properties of the electron gas in two dimensions
B. Karmakar, M. R. Gokhale, A. P. Shah +5
In experiments on electron transport the macroscopic inhomogeneities in the sample play a fundamental role. In this paper and a subsequent one we introduce and develop a general fo…