Volume-3 Issue-1, April 2023 – Indian Journal of Advanced Physics (IJAP)

A1034043123

IJAP Journal — Sat, 15 Apr 2023 12:13:48 +0000

The Indian Journal of Advanced Physics (IJAP) has ISSN 2582-8983 (online), an open-access, peer-reviewed, periodical half-yearly international journal, which is published by Lattice Science Publication (LSP) in April and October. The journal aims to publish high-quality peer–reviewed original articles in the area of Physics that covers Astrophysics, Atmospheric and Space Physics, Atomic & Molecular Physics, Biophysics, Condensed Matter & Materials Physics, Electromagnetism and Optics, Elementary Particles and Fields, Fluid Dynamics, and Plasmas, Gravitation and String Theory, Mathematical Physics, General and Interdisciplinary Physics, Nonlinear dynamics and Complex Systems, Nuclear Physics, Quantum Physics, Optics and Spectroscopy, Particle Physics, Plasma Physics, Relativity and Cosmology, Statistical and Thermodynamics Physics. #Astrophysics, Atmospheric and Space Physics #Atomic & Molecular Physics #Biophysics #Condensed Matter & Materials Physics #Electromagnetism and Optics #Elementary Particles and Fields #Fluid Dynamics, and Plasmas #Gravitation and String Theory #Mathematical Physics #General and Interdisciplinary Physics #Nonlinear dynamics and Complex Systems #Nuclear Physics #Quantum Physics #Optics and Spectroscopy #Particle Physics #Plasma Physics #Relativity and Cosmology #Statistical and Thermodynamics Physics #PhD ademic #Scopus #SCI #LatticeScience #Springer, #ScienceDirect #IEEE #Mendeley #Research #Scholarship #UGC #SSRN #LatticeScience #ESCI #Science #Journal #Conference #SSRN #PubLons

Entangled Photon Generation From a Three-Level Laser with a Parametric Amplifier and Coupled to a Thermal Reservoir
Negasa Belay

Negasa Belay, Department of Physics, Jimma University, P. O. Box 378, Jimma, Ethiopia.

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© The Authors. Published by Lattice Science Publication (LSP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: In this article we study squeezing and statistical properties of light producing by a non-degenerate three-level laser with the parametric amplifier and coupled to a thermal reservoir. With the aid of master equation, we obtain stochastic differential equations. Applying solutions of resulting differential equations, we calculate quadrature variance, the mean and variance of photon number, the photon number correlation. However, the two-mode driving light has no effect on the squeezing properties of the cavity modes. On the other hand, parametric amplifier and thermal reservoir increase the mean and variance of photon number. Furthermore, employing the same solutions, we also obtain anti normally ordered characteristic function defined in the Heisenberg picture. For a linear gain coefficient of (A = 100), for a cavity damping constant of K= 0:8,μ = 0 and for thermal reservoir ¯ nth = 0 ,the maximum intra cavity photon entanglement is found at steady state and at threshold to be 60%.

Keywords: Master Equation; Solution of Stochastic Differential Equations; Entanglement Amplification and Langavian Equation.
Scope of the Article: Statistical and Thermodynamics Physics

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A1035043123

IJAP Journal — Fri, 03 Mar 2023 13:23:04 +0000

Biot-Savart Law for Determination of Speed of Particle Beyond the Speed of Light
Chandra Bahadur Khadka

Chandra Bahadur Khadka, Department of Physics Tri-Chandra Multiple College Tribhuvan University, Kathmandu, Nepal.

Abstract: This paper presents the modification of Biot-Savart law that thoroughly put to calculate magnetic field at any point in the space due to motion of charge in a complete circuit and further applies to determine velocity of particle faster than the speed of light. The modified Biot-Savart law provides complete mathematical result as given by ordinary Biot-Savart law, but most importantly, do not involve the need of derivative, integration of line element. This formula is applicable to address the question of how is it possible to achieve velocity of particle in excess of C and to open a discussion towards a new way of acquiring speed of particle beyond speed of light, namely C ≤ V ≤ ∞, Although, there is popular statement “nothing can move faster than speed of light”. In this highly controversial statement, the specific purpose is not to comprises the merits of existing Biot-Savart law, but rather to introduce a concise and careful reasoned account of Biot-Savart law to propagate particle faster than speed of light.

Keywords: Biot – Savart law, Electromagnetic wave, Magnetic field, speed of light.
Scope of the Article: Mathematical Physics

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