Inverse design of artificial two-level systems with M\"ossbauer nuclei in thin-film cavities

• URL: http://arxiv.org/abs/2108.01960v1
• Date: Wed, 4 Aug 2021 10:56:35 GMT
• Title: Inverse design of artificial two-level systems with M\"ossbauer nuclei in thin-film cavities
• Authors: Oliver Diekmann, Dominik Lentrodt and J\"org Evers
• Abstract summary: Thin-film cavities containing layers of M"ossbauer nuclei have been demonstrated to be a rich platform for x-ray quantum optics. With the recent advent of an ab initio theory, a numerically efficient description of these systems is now possible.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Thin-film cavities containing layers of M\"ossbauer nuclei have been demonstrated to be a rich platform for x-ray quantum optics. At low excitation, these systems can be described by effective few-level schemes, thereby providing tunable artificial quantum systems at hard x-ray energies. With the recent advent of an ab initio theory, a numerically efficient description of these systems is now possible. On this basis, we introduce the inverse design and develop a comprehensive optimization for an archetype system with a single resonant layer, corresponding to an artificial two-level scheme. We discover a number of qualitative insights into x-ray photonic environments for nuclei that will likely impact the design of future x-ray cavities and thereby improve their performance. The presented methods readily generalize beyond the two-level case and thus provide a clear perspective towards the inverse design of more advanced tunable x-ray quantum optical level schemes.

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