Large Hadron Collider - can it re-create the early universe?

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Discussion Overview

The discussion revolves around the Large Hadron Collider's capability to recreate conditions similar to those in the early universe, particularly focusing on the production of quark-gluon plasma (QGP). Participants explore the implications of current space-time conditions on experimental outcomes related to the early universe.

Discussion Character

  • Exploratory, Debate/contested, Conceptual clarification

Main Points Raised

  • One participant suggests that the vast size of current space-time may affect the conditions of any plasma created, potentially invalidating conclusions about the early universe.
  • Another participant believes that the behavior of QGP remains consistent regardless of the universe's expansion.
  • A different viewpoint humorously questions the feasibility of recreating the early universe, while acknowledging that CERN's focus is on studying QGP and exploring unknown territory.
  • One participant clarifies that the aim is to recreate the conditions of the early universe rather than the universe itself, raising concerns about the influence of the current universe on these attempts.

Areas of Agreement / Disagreement

Participants express differing views on whether current space-time conditions impact the recreation of early universe conditions, indicating that multiple competing perspectives remain unresolved.

Contextual Notes

There are limitations regarding assumptions about the behavior of QGP under different space-time conditions and the definitions of "recreating the early universe" versus "recreating early conditions." These aspects remain unresolved in the discussion.

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One of the aims of the Large Hadron Collider is that it may be able to re-create conditions in the early universe and therefore produce the quark-gluon plasma that appeared microseconds after the universe's birth.

However a fundamental difference between the universe now (in which the experiment is being conducted) and the early universe is the size of space-time itself. Is it not the case that the vast size of current space-time will affect the conditions acting on any plasma created and invalidate any experiments intended to draw conclusions about the early universe, when space-time was very small?
 
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I believe that the QGP behaves the same, no matter the how far the universe has expanded.
 
can it re-create the early universe?
Hopefully not. For as Stephen Wright would say, "Where would we put it?" :smile:
The CERN experimenters do not think of it that way, of course - they are studying the quark-gluon plasma. And every bit as much as the highly publicized search for the Higgs boson, they are exploring unknown territory.
 
I didn't think they were trying to re-create the universe, simply the conditions that applied at the time.

The question is still valid - doesn't the existence and influence of the current universe negate any attempt to create the original universe's starting conditions?
 

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