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67 papers · 1 filter
Patching up the monopole potential
Ashok Chatterjee, P. Mitra
It is well known that a vector potential cannot be defined over the whole surface of a sphere around a magnetic monopole. A recent claim to the contrary is shown to have problems.…
Introduction to Quantum Computation
Ashok Chatterjee
This is an introductory review on the basic principles of quantum computation. Various important quantum logic gates and algorithms based on them are introduced. Quantum teleportat…
Role of the superexchange interaction in magnetic transition and polaron crossover
Jayita Chatterjee, A. N. Das
The Hubbard-Holstein model is studied including double-exchange interaction and superexchange interaction using a variational phonon basis obtained through the modified Lang-Firsov…
Solar Neutrino Oscillation Parameters after KamLAND
Srubabati Goswami, Abhijit Bandyopadhyay, Sandhya Choubey
We explore the impact of the data from the KamLAND experiment in constraining neutrino mass and mixing angles involved in solar neutrino oscillations. In particular we discuss the…
Of overlapping Cantor sets and earthquakes: Analysis of the discrete Chakrabarti-Stinchcombe model
Pratip Bhattacharyya
We report an exact analysis of a discrete form of the Chakrabarti-Stinchcombe model for earthquakes [Physica A \textbf{270}, 27 (1999)] which considers a pairof dynamically overlap…
Quenching of Hadron Spectra due to the Collisional Energy Loss of Partons in the Quark-Gluon Plasma
Munshi G. Mustafa, Markus H. Thoma
We estimate the energy loss distribution and investigate the quenching of hadron spectra in ultrarelativistic heavy-ion collisions due to the collisional energy loss of energetic p…