Mediator of electrostatic repulsion

rrosenthal
Messages
16
Reaction score
0
Is the repulsive force between 2 electrons---(as in an electrostatic situation)---mediated by a photon----?------R Rosenthal
 
Physics news on Phys.org
Yes.
 
any idea what wavelength the photon would be that would mediate the electrostatic repulsion----?---randy rosenthal
 
The mediator here, the photon, is a virtual particle and as such exists for an amount of time allowed by the Hesenberg Uncertainty Principle. Therefore the photon must satisfy, ΔE Δt ≥\hbar
To find this ΔE requires knowledge of Δt, which could be found using the distance between the electrons divided by the speed of light. Then use the above equation to solve for ΔE, from which λ can be found using ΔE = \frac{hc}{λ}
 
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
If we release an electron around a positively charged sphere, the initial state of electron is a linear combination of Hydrogen-like states. According to quantum mechanics, evolution of time would not change this initial state because the potential is time independent. However, classically we expect the electron to collide with the sphere. So, it seems that the quantum and classics predict different behaviours!
According to recent podcast between Jacob Barandes and Sean Carroll, Barandes claims that putting a sensitive qubit near one of the slits of a double slit interference experiment is sufficient to break the interference pattern. Here are his words from the official transcript: Is that true? Caveats I see: The qubit is a quantum object, so if the particle was in a superposition of up and down, the qubit can be in a superposition too. Measuring the qubit in an orthogonal direction might...
Back
Top