PPISR Theoretical sciences: Areas of Research
- Kondo effect of quantum Dots coupled to the Luttinger
liquid leads.
- Quantum Spin Pumping: of an antiferromagnetic spin-1/2
chain with competing exchange interactions, using spatially
periodic potential modulated in space and time.
- Superconducting Qubits: Transport of quantum informa-
tion through the lattice of superconducting qubits connected
through different couplings studied through the Berry phase
analysis.
- Mesoscopic SQUIDs (Superconducting quantum inter-
ference devices): Dissipation physics of 1-D SQUID array
by using the field-theoretical renormalization group method.
- Perfect Entanglement Transport in Quantum Spin Sys-
tems: Berry phase analysis and Abelian bosonization meth-
ods used to propose a mechanism for perfect entanglement
transport in two anti-ferromagnetic (AFM) quantum spin
chain systems.
- Entropic Uncertainty principle. Applied to study the com-
plementarity in discrete-continuous variables such as number
and phase.
Student: Omkar S.
- Quantum walks. Quantum-classical transition in discrete-
time quantum walks on a line and cycle subjected to dissipa-
tive and non-dissipative noise; relativistic quantum walks.
- Quantum communication. Squeezed amplitude damping
channel; derivation of Kraus operators for the noisy two-qubit
system; approximate quantum error correcting codes.
Student: Uday Bhanu Sharma
- Dynamics of entanglement. Of systems interacting dissi-
patively and non-dissipatively with a common environment.
- Foundations of quantum mechanics. To derive quantum
mechanics, resolve the quantum measurement problem, from
computation/information theoretic axioms.
- Solar supergranular fractal dimension. As a function of
surface features like magnetic activity, velocity flow fields and
size.
- Bibliometrics. Quantifying degree of collaboration in a jour-
nal, productivity of a researcher (beyond h-index), modifying
h-index to account for multiple authorship.
last updated:
12 April 2010.