Unraveling Dicke Superradiant Decay with Separable Coherent Spin States

• URL: http://arxiv.org/abs/2504.13418v1
• Date: Fri, 18 Apr 2025 02:32:09 GMT
• Title: Unraveling Dicke Superradiant Decay with Separable Coherent Spin States
• Authors: Pedro Rosario, Luiz O. R. Solak, A. Cidrim, R. Bachelard, Johannes Schachenmayer,
• Abstract summary: We show that Dicke superradiant decay from a fully inverted state can at all times be described by a positive statistical mixture of coherent spin states (CSS)<n>Since CSS are separable, this implies that no entanglement is involved in Dicke decay.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We show that Dicke superradiant decay from a fully inverted state can at all times be described by a positive statistical mixture of coherent spin states (CSS). Since CSS are separable, this implies that no entanglement is involved in Dicke decay. Based on this result, we introduce a new numerical quantum trajectory approach leading to low-entanglement unravelings. This opens up possibilities for large-scale numerical simulations of collective decay processes.

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