Could we do QM without time evolution ?

mhill
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could we do QM without time evolution ??

that is the idea, could we perform QM without referring to any coordinate called 'time' in the sense that the Hamiltonian and Schroedinguer equation would be

H \Psi (x) =0 and time and energy only appear as the pair

(p_0 , t)

the idea is , to perform a QM where there is no time evolution
 
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mhill said:
that is the idea, could we perform QM without referring to any coordinate called 'time' in the sense that the Hamiltonian and Schroedinguer equation would be

H \Psi (x) =0 and time and energy only appear as the pair

(p_0 , t)

the idea is , to perform a QM where there is no time evolution
If you mean perform some kind of generally-covariant quantization in a
generalized phase space, I think Henneaux & Teitelboim talk about some
of that in their textbook. One finds weird stuff such as zero Hamiltonians,
(iirc - my memory is a bit vague on the details).

Separately, there's also the old chestnut about how time in QM is a
parameter, not an operator, if we want to have a Hilbert space of
states containing a lowest-energy state.
 
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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