Quantum States Prepared by Wormholes: Long-Wavelength Deviations from Bunch-Davies

Key points

It calculated the quantum states of tensor perturbations and test-scalar-field perturbations prepared when a wineglass-shaped wormhole creates a new universe.
It showed that the Bunch-Davies vacuum is reproduced at short wavelengths, while wormhole-charge-dependent deviations arise at long wavelengths.
These deviations leave small shifts and oscillations in the angular power spectrum produced by the subsequent inflation.
As the charge approaches 0, scalar and tensor deviations are suppressed, providing evidence that the topological transition to a no-boundary instanton is smooth.
These are cosmological predictions derived from idealized wormhole geometry and test-field calculations, not detections of signals in actual observational data.

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