Spin - overlapping photons with opposite spin

Usaf Moji
Messages
71
Reaction score
0
Hi. Couple of questions:

1) is it physically possible for two photons to overlap completely while having opposite spin (so one is +1, the other is -1, and they overlap like in a laser)?

2) if yes, what would this arrangement of photons correspond to, if anything, i.e. where in nature would you find such an arrangement? (e.g. Is this how photons would interact between a south pole and a north pole or between a positive charge and negative charge? Would it have any other noteworthy physical manifestation?)

All responses appreciated.
 
Physics news on Phys.org
Photons do not interact with each other. Photons of opposite spin can overlap, pass through one another, etc. Nothing of interest will happen.
 
Not an expert in QM. AFAIK, Schrödinger's equation is quite different from the classical wave equation. The former is an equation for the dynamics of the state of a (quantum?) system, the latter is an equation for the dynamics of a (classical) degree of freedom. As a matter of fact, Schrödinger's equation is first order in time derivatives, while the classical wave equation is second order. But, AFAIK, Schrödinger's equation is a wave equation; only its interpretation makes it non-classical...
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
Is it possible, and fruitful, to use certain conceptual and technical tools from effective field theory (coarse-graining/integrating-out, power-counting, matching, RG) to think about the relationship between the fundamental (quantum) and the emergent (classical), both to account for the quasi-autonomy of the classical level and to quantify residual quantum corrections? By “emergent,” I mean the following: after integrating out fast/irrelevant quantum degrees of freedom (high-energy modes...

Similar threads

Back
Top