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arXiv · 2303.18074

Instantaneous vacuum and States of Low Energy for a scalar field in cosmological backgrounds

Antonio Ferreiro·Silvia Pla
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Abstract

We construct the instantaneous vacuum state for a quantum scalar field coupled to another classical scalar field as described in [1]. We then compare it with the state of low energy constructed for a particular solution. We show that under physically motivated conditions they become very similar.

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Antonio Ferreiro, Silvia Pla. 2023-03-31. Instantaneous vacuum and States of Low Energy for a scalar field in cosmological backgrounds. https://arxiv.org/abs/2303.18074

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