The Minkowski vacuum is not exactly a thermofield-double state; explicit correlator mismatches and an alternate non-thermal entangled representation demonstrate that TFD structure arises from the derivation method rather than being fundamental.
The Unruh effect revisited
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abstract
A new and exact derivation of the Bogoliubov coefficients is obtained for the simplest case of a spinless, neutral, massive field in a uniformly accelerated frame with a constant acceleration. The method can be suitably generalized in a straightforward manner to any field with spin and charges.
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gr-qc 1years
2025 1verdicts
UNVERDICTED 1representative citing papers
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On the Limits of the Thermofield-Double Interpretation of the Minkowski Vacuum
The Minkowski vacuum is not exactly a thermofield-double state; explicit correlator mismatches and an alternate non-thermal entangled representation demonstrate that TFD structure arises from the derivation method rather than being fundamental.