Deutscher Broadbridge 2020.pdf (390.17 kB)
Solution of Non-Autonomous Schrödinger Equation for Quantized de Sitter Klein-Gordon Oscillator Modes Undergoing Attraction-Repulsion Transition
journal contributionposted on 2021-01-14, 05:34 authored by Philip BroadbridgePhilip Broadbridge, K Deutscher
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. For a scalar field in an exponentially expanding universe, constituent modes of elementary excitation become unstable consecutively at shorter wavelength. After canonical quantization, a Bogoliubov transformation reduces the minimally coupled scalar field to independent 1D modes of two inequivalent types, leading eventually to a cosmological partitioning of energy. Due to accelerated expansion of the coupled space-time, each underlying mode transits from an attractive oscillator with discrete energy spectrum to a repulsive unit with continuous unbounded energy spectrum. The underlying non-autonomous Schrodinger equation is solved here as the wave function evolves through the attraction-repulsion transition and ceases to oscillate.
The second author gratefully acknowledges support of the Australian Research Council for project DP160101366.
Pagination24p. (p. 1-24)
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