ScientificIrfan

Baryon Asymmetry with CP Violation in the Standard Model Md Irfan Department of Physics, Indian Institute of Technology Guwahati Roll Number: 242121029 Today Abstract The observed matter–antimatter asymmetry of the Universe, \( \etaB \equiv (n_B - n_{\bar B})/s \approx 10^{-10} \), is one of the outstanding puzzles of modern physics. This article examines whether the Standard Model (SM), evaluated in the vicinity of the electroweak phase transition at \(T \sim 100\,\mathrm{GeV}\), can account for this asymmetry. All three Sakharov conditions — baryon-number violation, CP violation, and departure from thermal equilibrium — are present in the SM at the electroweak scale. The CP-odd source is identified by embedding the CKM phase into the finite-temperature effective action; the thermal Higgs potential supplies the non-equilibrium background. A detailed numerical estimate yields \( \eta_B^{\mathrm{SM}...

Quantum Tunneling: Penetrating the Impenetrable Barrier By Md Irfan | 2nd Year Physics (Hons) Presented on National Science Day – 28th February 2023 Introduction The Mathematics Try It Yourself Applications Timeline Conclusion Introduction Quantum mechanics has revolutionized our understanding of nature at its most fundamental level. Among its most striking consequences is quantum tunneling : a particle can pass through an energy barrier that it does not have enough energy to climb over. Classically, a ball rolling towards a hill that is too high simply turns back. A quantum particle, described by a wavefunction rather than a point-like trajectory, has a small but non-zero probability of appearing on the other side. Tunneling is not a curiosity. It powers the Sun, explains radioactive alpha decay, limits how small transistors can be made, and lets us image individual atoms. Key idea Inside the barrier the wavefunction does not...

Scientific Irfan – Biography Scientific Irfan is an emerging physicist, educator, and science communicator from Patna, Bihar, India. Currently pursuing his Master of Science in Physics at the Indian Institute of Technology (IIT) Guwahati (2024–2026), Irfan is known for his deep curiosity about the universe, innovative teaching style, and commitment to making science accessible. Early Inspiration and Education Irfan’s fascination with the cosmos began in childhood, when he would gaze at the night sky and wonder: “How do these astronomical objects exist?” and “Who created the universe?” Encouraged by a nurturing school teacher, he pursued a BSc in Physics at Patna Science College, Patna University, graduating in 2024 with distinction (CGPA: 8.2/10). He excelled in advanced topics such as Quantum Mechanics, Electrodynamics, and Mathematical Physics. During this time, he conducted a research project on quantum tunneling and created award-winning ...

The Ultimate Approach To Solve  Differential Equation  "Differential equations are the loom of physics, weaving the threads of mathematics into the fabric of the universe". ----- Scientificirfan \[i\hbar \frac{\partial \psi(\mathbf{r}, t)}{\partial t} = \left[ -\frac{\hbar^2}{2m} \nabla^2 + V(\mathbf{r}, t) \right] \psi(\mathbf{r}, t)\]                         Introduction  Differential equations are one of the most common topics in physics and they are one of the most powerful mathematical tools in physics. In this article i am going to provide an effective and the best possible approach of solving the differential equations provided that you are familiar with some commonly used differential equations in physics and mathematics. From the oscillations of a pendulum to the dynamics of galaxies, differential equations serve as the mathematical language of nature. They help us describe, predict, and unde...