Atomic state that is a coherent superposition?

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Discussion Overview

The discussion revolves around the interpretation of the k vector in the context of a specific equation related to atomic states that may represent coherent superpositions. Participants seek clarification on the equation's components and their implications in quantum mechanics, particularly in relation to quantum repeaters and atomic ensembles.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant asks for an explanation of the k vector and the general meaning of the associated equation.
  • Another participant defines k as the wave number, expressed as ##2\pi\over \lambda##, but notes that further context is needed for clarity.
  • A participant requests a reference for the quoted material to provide context for the discussion.
  • A reference is provided, citing a paper on quantum repeaters that may relate to the topic at hand.
  • The same reference is reiterated with a link to an arXiv preprint for further reading.

Areas of Agreement / Disagreement

Participants are seeking clarification and context, indicating that there is no consensus on the interpretation of the k vector or the equation in question. Multiple viewpoints and requests for additional information remain unresolved.

Contextual Notes

The discussion lacks specific details about the equation and its application, which may limit understanding. There are also unresolved aspects regarding the meaning of the notation ##| g_j\rangle_n## and its relevance to the topic.

meyol99
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upload_2018-6-4_16-32-42.png

Can someone explain the meaning of the k vector and the general meaning of this equation?
 

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Physics news on Phys.org
1) k is the wave number ##2\pi\over \lambda##
2) difficult if you don't show where this is appearing. Some Stokes amplitude ? In particular: what the ##| g_j\rangle_n## stand for.
 
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upload_2018-6-4_17-5-14.png
 

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Nicolas Sangouard, Christoph Simon, Hugues de Riedmatten, and Nicolas Gisin
"Quantum repeaters based on atomic ensembles and linear optics",
Rev. Mod. Phys. 83, 33 – Published 21 March 2011
 
meyol99 said:
Nicolas Sangouard, Christoph Simon, Hugues de Riedmatten, and Nicolas Gisin
"Quantum repeaters based on atomic ensembles and linear optics",
Rev. Mod. Phys. 83, 33 – Published 21 March 2011

Here it is:

https://arxiv.org/abs/0906.2699
 

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