DTQE idler photons fall into a Black Hole- interference at d0?

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SUMMARY

The discussion centers on the implications of the delayed choice quantum eraser experiment when "idler" photons fall into a black hole. It posits that while information about in-falling matter is preserved through Hawking radiation, the lack of access to this information prior to evaporation raises questions about interference detection at detector d0. The consensus is that the outcome remains uncertain, with various theories on information preservation in black holes, necessitating further research to clarify whether interference is observed.

PREREQUISITES
  • Understanding of quantum mechanics principles, particularly the delayed choice quantum eraser experiment.
  • Familiarity with black hole physics and Hawking radiation.
  • Knowledge of quantum interference and its measurement in experiments.
  • Basic grasp of information theory as it relates to quantum systems.
NEXT STEPS
  • Research the implications of Hawking radiation on information preservation in black holes.
  • Explore the mechanics of the delayed choice quantum eraser experiment in detail.
  • Investigate current theories on quantum information and black hole entropy.
  • Study experimental setups for measuring quantum interference in various contexts.
USEFUL FOR

Physicists, quantum mechanics researchers, and anyone interested in the intersection of quantum theory and black hole physics will benefit from this discussion.

bcrelling
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Experiment:

Imagine the dalayed time quantum eraser experiment, except the pair of "idler" photons(which would normally pass onto the detectors d1,d2,d3,d4) instead fall into a black hole.

Would d0 detect interference or not?


It seems commonly accepted that the information of in-falling matter is preserved when the black hole evaporates through Hawking radiation. However before the evaporation we don't have access to the information. Does this mean that we observe interference(due to absence of which-path information) yet when the Hawking radiation comes out of the BH the past is retroactively altered to one where interference wasn't observed?!
 
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It is not clear whether d0 would detect interference or not in this experiment. There are various theories about how information is preserved in a black hole, but until further research is done it is impossible to say what the outcome of this experiment would be.
 

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