Archives for Entanglement
Is ‘ Information ‘ subjective?
Does information has a subjective nature/aspect to it? Do we define something as being informative because we ourselves can perceive it? The perception can be either with lab instruments or…
The Separability Problem in Quantum Mechanics for Mixed States
Separability Problem in Quantum Mechanics for Mixed States The **separability problem** in quantum mechanics refers to the task of determining whether a given **mixed quantum state** is **separable** or **entangled**.…
Bell’s Paper – Section 4 – The Proof
### Section IV: Contradiction (Detailed Explanation) In Section IV, Bell presents the formal proof of why a hidden variable theory cannot reproduce the quantum mechanical predictions for certain measurements on…
Trying to Understand Bell’s EPR Paper
Sections 2 and 3 in the paper - I had some trouble deciphering. ### Section II: Formulation In this section, Bell formulates the Einstein-Podolsky-Rosen (EPR) paradox mathematically. He uses the…
Introduce Scattering in Bohm’s EPR Experiment
Introduction In the context of Bohm's version of the EPR (Einstein-Podolsky-Rosen) experiment, two entangled electrons are prepared in a singlet state, meaning their total spin is zero. When these electrons…
Quantum vs. Classical States of a Combined System
A classical state doesn't require basis vectors - since it is a simple POINT in phase space. This is true even of combined states in classical physics. In QM, every…
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…
Why Quantum Entanglement cannot be used to send instantaneous messages
Quantum entanglement is a fascinating phenomenon in quantum mechanics where two or more particles become interconnected in such a way that the state of one particle instantly influences the state…
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…
What is Quantum Field Entanglement?
What is Field Entanglement? Field entanglement refers to the quantum entanglement between modes of a quantum field. Unlike particle entanglement, which involves correlations between discrete particles, field entanglement pertains to…