Quantum illumination with multiplexed photodetection

• URL: http://arxiv.org/abs/2209.11117v1
• Date: Thu, 22 Sep 2022 15:59:43 GMT
• Title: Quantum illumination with multiplexed photodetection
• Authors: Hao Yang, Nigam Samantaray, and John Jeffers
• Abstract summary: We describe a theoretical but experimentally realizable quantum illumination scheme based on non-simultaneous and non-optimal measurements. For lossy external conditions, the presence of the target object can be revealed earlier using multi-click measurements.
• Score: 13.250854610190078
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The advantages of using quantum states of light for object detection are often highlighted in schemes that use simultaneous and optimal measurements. Here, we describe a theoretical but experimentally realizable quantum illumination scheme based on non-simultaneous and non-optimal measurements which can maintain this advantage. In particular, we examine the multi-click heralded two mode squeezed vacuum state as a probe signal in a quantum illumination process. The increase in conditioned signal intensity associated with multi-click heralding is greater than that from a single detector-heralded signal. Our results show, for lossy external conditions, the presence of the target object can be revealed earlier using multi-click measurements. We demonstrate this through sequential shot measurements based on Monte-Carlo simulation.

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