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Open Quantum Systems Decoherence

Living in a Superposition

arXiv
Authors: James B. Hartle

Year

2015

Paper ID

26298

Status

Preprint

Abstract Read

~2 min

Abstract Words

107

Citations

N/A

Abstract

This essay considers a model quantum universe consisting of a very large box containing a screen with two slits and an observer (us) that can pass though the slits. We apply the modern quantum mechanics of closed systems to calculate the probabilities for alternative histories of how we move through the universe and what we see. After passing through the screen with the slits, the quantum state of the universe is a superposition of classically distinguishable histories. We are then living in a superposition. Some frequently asked questions about such situations are answered using this model. The model's relationship to more realistic quantum cosmologies is briefly discussed.

Why This Paper Matters

  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
  • It adds a 2015 reference point for readers tracking recent quantum research.
  • This essay considers a model quantum universe consisting of a very large box containing a screen with two slits and an observer (us) that can pass though the slits.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1511.01550 [2] arXiv https://arxiv.org/abs/1511.01550 [3] Publisher https://arxiv.org/abs/1511.01550

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