C L Mehta
Articles written in Pramana – Journal of Physics
Volume 4 Issue 5 May 1975 pp 242-245 Mathematical Physics
Hölder’s inequality for matrices
We prove that for arbitrary
Volume 9 Issue 2 August 1977 pp 155-161 Optics
Evanescent waves and the van Cittert Zernike theorem in cylindrical geometry
The cylindrical angular spectrum of the wavefield is introduced. In this representation the field consists of homogeneous as well as evanescent waves. The representation is applied to propagation problems and an analogue of van Cittert Zernike theorem is obtained in cylindrical geometry.
Volume 10 Issue 1 January 1978 pp 75-81 Quantum Mechanics
Extremum uncertainty product and sum states
We consider the states with extremum products and sums of the uncertainties in non-commuting observables. These are illustrated by two specific examples of harmonic oscillator and the angular momentum states. It shows that the coherent states of the harmonic oscillator are characterized by the minimum uncertainty sum 〈(Δ
Volume 14 Issue 3 March 1980 pp 185-189 Optics
Intensity fluctuations in thermal light with orthogonally polarised multiple-peak spectrum
The moment generating function of the integrated light intensity of thermal radiation having multiple peak spectrum is obtained. Cases of two-peak and three-peak spectra where different peaks are in orthogonal states of polarisation are considered. The moment generating function is shown to be the product of two simpler generating functions.
Volume 24 Issue 4 April 1985 pp 583-589 Quantum Mechanics
Two-mode para-Bose number states
Two-mode para-Bose number states are discussed. The two-mode system has been chosen as it is a representative of the multi-mode system. Salient properties like normalization, orthogonality and degeneracy of these states have also been discussed.
Volume 42 Issue 4 April 1994 pp 311-314
Squeezed vacuum as an eigenstate of two-photon annihilation operator
C L Mehta Anil K Roy G M Saxena
We introduce the inverse annihilation and creation operators
Volume 96, 2022
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