Graviton Spin: What is Moment of Inertia x Angular Frequency?

  • Thread starter Thread starter Chaos' lil bro Order
  • Start date Start date
  • Tags Tags
    Graviton
Chaos' lil bro Order
Messages
682
Reaction score
2
If Spin is 'moment of inertia' (I) x 'angular frequency' (w), what does it mean when we say a particle has spin = 1 or spin =2 like in the theoretical Graviton's case?
 
Physics news on Phys.org
Who claimed that "Spin is 'moment of inertia' (I) x 'angular frequency' (w)" ?

Daniel.
 
Chaos' lil bro Order said:
If Spin is 'moment of inertia' (I) x 'angular frequency' (w),

Electrons and other fundamental particles are not little tiny pellets that spin about their axes. As far as we know, they are pointlike and cannot be thought of as having a moment of inertia or an angular velocity. Nevertheless, they have intrinsic angular momentum, which cannot be "pictured" in any classical-like fashion as far as I know.

Electron "spins" do contribute to the total angular momentum of macroscopic objects. This is demonstraed by the Einstein-de Haas effect.
 
in short, spin in quantum mechanics cannot be visualized classically. Unfortunately, we have to take it as an abstract mathematical property of any particle, like charge, mass etc.
 
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!
Back
Top