Synthesis between Quantum Chaos and QFT.

MathematicalPhysicist
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Are there any attempts to synthesize between these two theories?

I mean are there methods from QFT being used in QC and vice versa?

I asked one professor from my univ if I were to research under his belt in QC, would I need some QFT knowledge and he said not. So I wonder are they really unrelated.

P.s
The prof specilaises in the interface between QC and number theory.
 
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Chaos certainly exists in classical field theory. Thus, it certainly would make sense to study "scares" of classical chaos in quantum field theory. I guess that the appropriate formulation of QFT would be the functional Schrodinger equation in which a quantum state is a function of time and a functional of field configuration in space. However, an explicit calculation would require numerical computation with computers much stronger than currently available.
 
When you say quantum state, do you refer to the wave function of the particle?

If so, then I guess that also the hamiltonian should be dependent explicitly on time to exhibit a chaotic behaviour.
 
MathematicalPhysicist said:
When you say quantum state, do you refer to the wave function of the particle?
No. I mean a general QFT state in which the number of particles may be uncertain.
 
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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