Long-Range Entangled Quantum Noise Radar Over Order of Kilometer

• URL: http://arxiv.org/abs/2406.10533v1
• Date: Sat, 15 Jun 2024 07:13:42 GMT
• Title: Long-Range Entangled Quantum Noise Radar Over Order of Kilometer
• Authors: H. Allahverdi, Ali Motazedifard,
• Abstract summary: In this paper, an explicit expression for the maximum detection range of an entangled quantum two-mode squeezed (QTMS) radar has been derived. We show that one can view a QTMS radar as a traditional radar with a reduced threshold signal-to-noise ratio. It is possible to implement a QTMS radar with a maximum detection range of up to 2km, which is suitable for recognizing small unmanned aerial vehicles at urban distances.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: In this paper, for the first time to our knowledge, an explicit expression for the maximum detection range of an entangled quantum two-mode squeezed (QTMS) radar, in which a two-mode squeezed vacuum state of microwave electromagnetic fields is used, has been derived by considering both the quantum properties of the entangled microwave fields and radar parameters. By comparing this equation with that of traditional radars, we show that one can view a QTMS radar as a traditional radar with a reduced threshold signal-to-noise ratio. By discussing the current limitations, it has been shown that the critical parameter to achieve both simultaneous quantum advantage and substantial radar range is increasing the bandwidth of the generated output signal in the quantum entangled source. It has been demonstrated that, by considering the current feasible system parameters, it is possible to implement a QTMS radar with a maximum detection range of up to 2km, which is suitable for recognizing small unmanned aerial vehicles at urban distances. Moreover, based on the false alarm rate, we introduce two classes of early alarm and track QTMS radars. This approach can be generalized to other quantum radars with different types of quantum sources, such as electro-opto-mechanical sources, and may shed new light on investigating quantum radar systems for practical applications, such as far-distance ultrasensitive contactless vital sign detection and counter-Drone technology. Finally, we discuss potential outlooks to improve and develop quantum entangled radar systems to be practical from an engineering point of view.

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