On the Extensions of Virial and Feynman - Hellman Theorem

Pratyusha Biswas Deb, S. Brajamani (Deceased), H.C. Mohanto, Soumya Das, P. S. Majumdar

Abstract: In the present work off diagonal and higher order extensions of Feynman-Hellman theorem is studied Rayleigh-Schrodinger perturbation theory for the degenerate case is redefined using a new technique. We also consider off-diagonal extension of quantum mechanical virial theorem by considering the case of linear harmonic oscillator.

Keywords: Rayleigh-Schrodinger perturbation theory, Feynman-Hellman theorem, quantum mechanical virial theorem, linear harmonic oscillator

How to Cite?: Pratyusha Biswas Deb, S. Brajamani (Deceased), H.C. Mohanto, Soumya Das, P. S. Majumdar, "On the Extensions of Virial and Feynman - Hellman Theorem", Volume 11 Issue 2, February 2022, International Journal of Science and Research (IJSR), Pages: 437-438, https://www.ijsr.net/getabstract.php?paperid=SR22202145556, DOI: https://dx.doi.org/10.21275/SR22202145556