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Juhi Rajhans

Publications and source records attributed to Juhi Rajhans.

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Dynamical Symmetry of the Zwanziger problem in Non-commutative Quantum Mechanics

The non-relativistic hydrogen atom and the Zwanziger problem have the same dynamical symmetry for bound and scattering states.We show that this is also true for a Hilbert space which is non-commutative in co-ordinates. The group structure is described using the redefined velocity operator and Laplace Runge-Lenz operator in terms of left and right handed representations of the non-commutative Hilbert space $ R_λ^{3}$.The bound state algebra is SO(4) and the scattering state algebra is SO(3,1).

math-ph

Differential Entropy Dynamics: A Possible Cause of Coherence Resonance

Coherence resonance can be explained using differential entropy and mutual information. This theory explores the role of external noise in stabilising chaotic circuits such as the uni-junction transistor relaxation oscillator.The phenomenon of coherence resonance maximizes differential entropy and mutual information.Thus most natural chaotic oscillators show coherence resonance in the presence of an external driving noise.

nlin.CD