Antimatter from time-traveling electrons

mcmagicman530
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if an electron going forwards in time generates/is equivalent to a positron going backwards in time, would matter going backwards in time leave antimatter in its place (going forwards in time)?
thanks
 
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The usual interpretation of an electron (matter) going backwards in time is to call it a positron (anti-matter) going forwards in time. At least, I prefer to have particles and anti-particle all going forward in time.
 
thanks. i was just wondering if you actually had a time machine, would it annihilate itself upon initiation.
 
Yes, interesting question. That would probably depend on the design of your time machine. Unfortunately, most designs for "time machines" people come up with are theoretically impossible and such questions are void speculation.
 
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!

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