Author Archives: anuj - Page 6
Quantum well versus Quantum wire versus Quantum dot
Also read Quantum well : one dimension is reduced to the nano range while the other two dimensions remain large. Quantum wire : two dimensions are so reduced and one…
Schwarzschild Solution for a Black Hole
Schwarzschild Solution for a Black Hole 1. Schwarzschild Metric: The Schwarzschild solution is the simplest solution to Einstein's field equations in general relativity. It describes the spacetime geometry surrounding a…
Scalar Wave Equation in a Schwarzschild Background
Scalar Wave Equation in Schwarzschild Background: For the Schwarzschild metric, the scalar wave equation becomes: (1−2GMc2r)−1∂2Φ∂t2−1r2∂∂r(r2(1−2GMc2r)∂Φ∂r)−1r2sinθ∂∂θ(sinθ∂Φ∂θ)−1r2sin2θ∂2Φ∂ϕ2=0.\left(1 - \frac{2GM}{c^2r}\right)^{-1} \frac{\partial^2 \Phi}{\partial t^2} - \frac{1}{r^2} \frac{\partial}{\partial r} \left( r^2 \left(1 - \frac{2GM}{c^2r}\right)…
nanoscale will require diamonds , not metals
For building medical nanobots that work inside the human body, different solvents. At nanoscale, the human body's water acts as a solvent for metals. Metals will dissolve. So - harder…
Measurement of the Earth’s Magnetic Field
Measurement of the Earth's Magnetic Field Solution: Apparatus: Magnetic compass Helmholtz coils or solenoid Power supply for Helmholtz coils Protractor or angular measurement device Procedure: Calibrate the Helmholtz coils to…
Experimental Measurement of Planck’s Constant
Experimental Measurement of Planck's Constant Apparatus: Light source with known wavelength Photoelectric cell Variable voltage power supply Ammeter and voltmeter Procedure: Illuminate the photoelectric cell with light of a known…
Measuring the Speed of light in vacuum
Measurement of the Speed of Light in a Vacuum Solution: Apparatus: Pulsed laser source Beam splitter Two mirrors (one movable and one fixed) Fast photodetector Oscilloscope Procedure: Set up the…
Probabilities in Bell’s Theorem – Different orientations
In testing bell's theorem, what is the probability that if orientation settings are different, the two detectors will flash different colors? Bell's theorem addresses the statistical predictions of quantum mechanics…
Superluminal Potentials in Quantum Physics
The paper "Quantum Field Derivation of the Superluminal Schrödinger Equation and Deuteron Potential" by Betinis, published in Physics Essays in 2002, explores the theoretical foundations and implications of superluminal quantum…