String and pair creation/annihilation

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Discussion Overview

The discussion revolves around how string theory explains the phenomena of pair creation and annihilation, exploring theoretical concepts and interpretations related to vacuum states and field sources.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant suggests that pair creation and annihilation in string theory can be explained by the concept of string splitting.
  • Another participant questions how strings can emerge from a vacuum that is defined as having nothing, expressing uncertainty about the foundational concepts of string theory.
  • A participant asserts that in a true vacuum, pair creation does not occur, arguing that the presence of fields indicates that it is not a true vacuum. They propose that strings are created from a charged source string.
  • A later reply reiterates the idea that true vacuum does not allow for pair creation and emphasizes that fluctuations in the vacuum can lead to energy creation, which may result in particle or string formation.

Areas of Agreement / Disagreement

Participants express differing views on the nature of vacuum and its relation to pair creation, indicating that multiple competing perspectives exist without a consensus on the explanations provided.

Contextual Notes

Participants highlight the complexity of defining a true vacuum and the implications of field presence, suggesting that assumptions about vacuum states and fluctuations are critical to the discussion.

touqra
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How does string explains pair creation and annihilation ?
 
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Demystifier said:
By string splitting.

In the first place, vacuum has nothing, only fields. I don't see how strings could suddenly pop out of nowhere? Sorry, just new in these things.
 
In the true vacuum, there is no pair creation. If there are fields, then it is NOT nothing, not a true vacuum. Furthermore, a field has its source. For example, a source of a static electric field is a charged particle. Now, in string theory, the pair of strings is created from the charged source string.
 
Demystifier said:
In the true vacuum, there is no pair creation. If there are fields, then it is NOT nothing, not a true vacuum. Furthermore, a field has its source. For example, a source of a static electric field is a charged particle. Now, in string theory, the pair of strings is created from the charged source string.
I wouldn't disagree more. It's better we say there is no true stationary vacuum. From what we know of fluctuations even when we consider a space or point mass momentarily at rest, we can say argue that the vacuum itself is fluctuating. The fluctuation creates energy and we all know particle pairs or "string" as in the stirng theory could be created out of energy brought on by this fluctuation.
 

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