omega_KA = 2 Delta(0): Can this coincidence be accidental?
Kohn anomaly (KA) occurs in normal metals, observed as a kink in the phonon dispersion. Recently it has been observed in superconductors by inelastic neutron scattering with a surprise that the frequency of KA is twice the pair binding energy. Does this result raise any question on our understanding of standard model of conventional superconductors?
22/04/2008 at 4:00 pm
Prof. V. Ravishankar, Physics Dept. I.I.T. Kanpur
Seminar of General Interest
Lecture Hall
Document Date:
Benchmarks and characteristics of Mixed state entanglement -the two qubit case
Benchmarks and characteristics of Mixed state entanglement -the two qubit case
A complete characterization of a two qubit mixed state entanglementis provided, of which measures such as concurrence arise as particularbenchmarks. As an application, the role of entanglement in NMR quantumcomputation is resolved and clarified.
21/04/2008 at 4:00 pm
Prof. V. Ravishankar, Physics Dept. I.I.T. Kanpur
Particle/Nuclear Physics Seminar
Lecture Hall
Document Date:
Hot QCD Equations of state and response functions of QGP — a kinetic approach
Hot QCD Equations of state and response functions of QGP — a kinetic approach
We analyze a class of hot EOS which have been proposed recently within the improved pQCD framework, and show how their predictions can be checked in heavy ion collisions.
26/03/2008 at 4:00 pm
Dr. Rama Panda, IIT, Kharagpur
Seminar of General Interest
Lecture Hall
Document Date:
Entanglement in Quantum Information Science-Creation, Characterization and Application
