Undergrad Quantum field in curved space-time

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The discussion centers on the relationship between quantum mechanics (QM) and general relativity (GR), specifically regarding the wave function of correlated particles. It highlights that non-relativistic QM cannot adequately describe scenarios involving curved space-time, as it relies on Euclidean distance, which is incompatible with GR. Instead, quantum field theory (QFT) should be employed to address these interactions in curved spacetime, where traditional wave functions do not apply. The conversation emphasizes the need for a framework that integrates both quantum mechanics and general relativity to understand particle behavior in curved geometries. Ultimately, the challenge remains in reconciling these two fundamental theories.
Gary Venter
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TL;DR
Quick question about relationship between QM and general relativity
The wave function includes coordinates for position in space. For two distant but correlated particles, do their distances and paths of movement used in the wave function follow the curved space-time of general relativity, or is Euclidean distance assumed in QM?
 
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I support neither of your idea : Eucledian distance does not fit with GR and classical curved space-time doe s not seem fit with QM. If you could get an answer, you would be honerd as a pioneer of quamtum gravity.
 
Gary Venter said:
The wave function includes coordinates for position in space.
Here you are using non-relativistic QM.

Gary Venter said:
For two distant but correlated particles, do their distances and paths of movement used in the wave function follow the curved space-time of general relativity
Here you are trying to use relativity, which means you can't use non-relativistic QM. You have to use quantum field theory, and in curved spacetime to boot, in which there is no such thing as a "wave function". That's not how QFT models things.
 
Gary Venter said:
their distances and paths of movement used in the wave function
There are no such things even in non-relativistic QM. The wave function does not describe "distances and paths of movement".
 
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Gary Venter said:
TL;DR Summary: Quick question about relationship between QM and general relativity

or is Euclidean distance assumed in QM?
No. In quantum theory on curved spacetime, a curved geometry is used.
 
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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

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