$N$ Scaling of Large-Sample Collective Decay in Inhomogeneous Ensembles

• URL: http://arxiv.org/abs/2307.11623v2
• Date: Thu, 21 Dec 2023 07:12:09 GMT
• Title: $N$ Scaling of Large-Sample Collective Decay in Inhomogeneous Ensembles
• Authors: Sergiy Stryzhenko, Alexander Bruns, and Thorsten Peters
• Abstract summary: We experimentally study collective decay of an extended disordered ensemble of $N$ atoms inside a hollow-core fiber. We observe up to $300$-fold enhanced decay rates, strong optical bursts and a coherent ringing.
• Score: 44.99833362998488
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We experimentally study collective decay of an extended disordered ensemble of $N$ atoms inside a hollow-core fiber. We observe up to $300$-fold enhanced decay rates, strong optical bursts and a coherent ringing. Due to inhomogeneities limiting the synchronization of atoms, the data does not show the typical scaling with $N$. We show that an effective number of collective emitters can be determined to recover the $N$ scaling known to homogeneous ensembles over a large parameter range. This provides physical insight into the limits of collective decay and allows for its optimization in extended ensembles as used, e.g., in quantum optics, precision time-keeping or waveguide QED.

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