142 citations · 368 across the 8 of their papers we have counts for
8 papers
Ferroelectric order associated with an ordered occupancy at the octahedral site of the inverse spinel structure of multiferroic NiFe2O4
J. K. Dey, A. Chatterjee, S. Majumdar +4
We report a ferroelectric order at ~ 98 K for NiFe2O4, which carries an inverse spinel structure with a centrosymmetric Fd3m structure at room temperature. The value of spontaneous…
Universal criterion for black hole stability
Ashok Chatterjee, Parthasarathi Majumdar
It is shown that a non-rotating macroscopic black hole with very large horizon area can remain in stable thermal equilibrium with Hawking radiation provided {\it its mass, as a fun…
Mass and charge fluctuations and black hole entropy
Ashok Chatterjee, Parthasarathi Majumdar
The effects of thermal fluctuations of the mass (horizon area) and electric charge, on the entropy of non-rotating charged {\it macroscopic} black holes, are analyzed using a grand…
Universal canonical entropy for gravitating systems
Ashok Chatterjee, Parthasarathi Majumdar
The thermodynamics of general relativistic systems with boundary, obeying a Hamiltonian constraint in the bulk, is argued to be determined solely by the boundary quantum dynamics,…
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…