Eur. Phys. J. Plus (2017) 132: 285
https://doi.org/10.1140/epjp/i2017-11558-9

Regular Article

Quantum-mechanical estimation of rectangular waveguide parameters with atomic entropy computation

¹ Department of Electronics and Communication, National Institute of Technology, Delhi, India
² Department of Physics, National Institute of Technology, Delhi, India
³ Division of Electronics and Communication Engineering, Netaji Subhas Institute of Technology, Delhi, India
⁴ Department of Electronics and Communication Engineering, G.B. Pant Govt. Engineering College, Delhi, India

^* e-mail: lalitkumar_khanna@yahoo.com

Received: 15 September 2016
Accepted: 16 May 2017
Published online: 29 June 2017

Abstract

The field within a rectangular waveguide is associated with an electromagnetic four-potential which is used to excite a 3-dimensional (3D) quantum harmonic oscillator/atom within the guide and from the transition probabilities of the oscillators/atoms within the guide, we estimate the mode that has been excited as well as dimension of the guide. Finally, we make a small computation regarding the quantum information transmitted by the waveguide field (both classical and quantum e-m fields) having random phases and amplitudes to the atomic oscillator.