Interference-Protected Subradiance and Bound States in Nested Atomic Arrays

• URL: http://arxiv.org/abs/2604.10197v1
• Date: Sat, 11 Apr 2026 13:08:26 GMT
• Title: Interference-Protected Subradiance and Bound States in Nested Atomic Arrays
• Abstract summary: Collective subradiant states in waveguide QED are highly sensitive to disorder, limiting their robustness.<n>We propose a deterministic approach to engineering atom arrays based on a Minkowski sum construction, generating quasi-disordered structures with built-in correlations.<n>We study the stability of these subradiant and bound-state-like modes against moderate positional disorder.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Collective subradiant states in waveguide QED are highly sensitive to disorder, limiting their scalability and robustness. We propose a deterministic approach to engineering atom arrays based on a Minkowski sum construction, generating quasi-disordered structures with built-in correlations. This leads to mode-selective radiative coupling: interactions between dark modes are parametrically suppressed, while bright modes can hybridize. We study the stability of these subradiant and bound-state-like modes against moderate positional disorder. Our work provides a route to robust, analytically controllable subradiance through engineered quasi-disorder, with direct relevance to atom-waveguide and circuit QED experiments.

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