Qilong Wu

Aug 12, 2024 | link.aps.org | Huihui Yu |Yuan Zhang |Henan Academy |Qilong Wu

Abstract In this Letter, we use quantum trajectory theory to simulate heterodyne detection of narrow bandwidth superradiant lasing from an incoherently excited atomic ensemble. To this end, we describe the system dynamics and account for stochastic measurement backaction by second-order mean-field theory. Our simulations show how heterodyne measurements break the phase symmetry, and initiate the atomic coherence with a random phase and a long temporal phase coherence.

Nov 28, 2023 | mdpi.com | Qilong Wu |Yi Ren |Qiang Feng |Zitao Geng

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