Topological anomalous Floquet photon pump

• URL: http://arxiv.org/abs/2410.10959v2
• Date: Thu, 07 Nov 2024 05:35:05 GMT
• Title: Topological anomalous Floquet photon pump
• Authors: Manshuo Lin, Saeed Rahmanian Koshkaki, Mohsen Yarmohammadi, Michael H. Kolodrubetz,
• Abstract summary: We propose a simple, experimentally viable protocol to realize non-adiabatic topological photon pumping mediated by a single qubit. For both quantized photons and external drive, the system exhibits a non-trivial topological phase across a broad range of parameter space.
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• Abstract: There is a close theoretical connection between topological Floquet physics and cavity QED, yet this connection has not been realized experimentally due to complicated cavity QED models that often arise. We propose a simple, experimentally viable protocol to realize non-adiabatic topological photon pumping mediated by a single qubit, which we dub the anomalous Floquet photon pump. For both quantized photons and external drive, the system exhibits a non-trivial topological phase across a broad range of parameter space. Transitions out of the topological phase result from frequency-space delocalization. Finally, we argue that the protocol can be implemented in existing experiments via driven qubit non-linearities, with topological pumping witnessed in measurements of the cavity Wigner distribution functions.

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