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Is there any notion of causality in Quantum field theory at finite temperature?

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    $\begingroup$ Is that not just the premise of regular qft? $\endgroup$
    – Charlie
    Commented Mar 5, 2021 at 15:54
  • $\begingroup$ Time coordinate is periodic in thermal field theory. So I assume regular notion of light cone doesn't apply hence the question. $\endgroup$
    – Hkw
    Commented Mar 5, 2021 at 21:58

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