What was the quantum state at t=0 (big bang). Many thanks.

thenaturalist
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Hi everyone. Can anyone help with this thought. What was the quantum state at t=0 or at the big bang. I thank you very much for your help.

TheNaturalist
 
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There are two ways to view it. We need to apply quantum mechanics to the very first instant.

You can say the quantum state was in a state of superpositioning, meaning that every possible state of the universe arose side-by-side. A different way is to state there was no definate state, considering alone the wave function of the universe had no collapsed.
 
QuantumClue said:
There are two ways to view it. We need to apply quantum mechanics to the very first instant.

You can say the quantum state was in a state of superpositioning, meaning that every possible state of the universe arose side-by-side. A different way is to state there was no definate state, considering alone the wave function of the universe had no collapsed.

Thank you very much !
 
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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