A Navigation Ranging Scheme With True Random Entangled Microwave Signals

Li, Xiang; Wu, Dewei; Miao, Qiang; Zhu, Haonan; Wei, Tianli

doi:10.1109/jphot.2018.2876045

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…Therefore, there are excellent prospects and development in the future areas of quantum information processing or a large scale dynamic space environment. Moreover, there are significant influences on traditional communication, navigation, and radar [4].…”

Section: Introductionmentioning

confidence: 99%

Classical expression model of entangled quantum microwave after the measurement

Miao

et al. 2019

Electron. lett.

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Being dependent on the analysis of intrinsic correlated characteristic between the quadrature components of the entangled microwave field and the uncertainty of measurement, the authors present a classical expression model of the entangled quantum microwave after the measurement. This model describes two correlated random processes. The time-domain characteristic and quantum characteristic of the expression model are discussed, which indicate the random correlated characteristic. Results are in agreement with the generation experiment of the entangled quantum microwave, which proves the rationality. On one hand, the merit of the classical expression is intuitive, which makes it easier to understand the non-classical characteristics of the entangled quantum microwave. On the other hand, it is more convenient to investigate the performance of free-space propagation and receiver detection by classical expression.

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Section: Introductionmentioning

confidence: 99%

Classical expression model of entangled quantum microwave after the measurement

Miao

et al. 2019

Electron. lett.

Self Cite

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Microwave electrometry with bichromatic electromagnetically induced transparency in Rydberg atoms

Han

He²,

Song

et al. 2023

EPJ Quantum Technol.

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A scheme for measuring microwave (MW) electric (E) fields is proposed based on bichromatic electromagnetically induced transparency (EIT) in Rydberg atoms. A bichromatic control field drives the excited state transition, whose absorption shows three EIT windows. When a MW field drives the Rydberg transition, the EIT windows split and six transmission peaks appear. It is interesting to find that the peak-to-peak distance of transmission spectrum is sensitive to the MW field strength, which can be used to measure MW E-field. Simulation results show that the spectral resolution could be increased by about 4 times, and the minimum detectable strength of the MW E-field may be improved by about 3 times compared with the common EIT scheme. After the Doppler averaging, the minimum detectable MW E-field strength is about 5 times larger than that without Doppler effect. Also, we investigate other effects on the sensitivity of the system.

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Preparation methods and progress of experiments of quantum microwave

Qiang¹,

Li²,

Wu³

et al. 2019

Acta Phys. Sin.

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Based on the characteristics of superposition, entanglement, non-locality and non-clonality of quantum mechanics, quantum information science can break through the physical limits of classical information and open up a new information processing function different from classical electromagnetic application methods. Due to the advantages of high-energy single photon in practical applications, the research and application of optical quantum information technology dominates the development of current quantum information technology. However, the free-space transmission of light waves is greatly affected by weather conditions and atmospheric particles. Comparing with other wave bands, classical microwave signal shows good penetration ability when transmitting in free space. By introducing quantum mechanics, microwave signal also exhibits non-classical merits. As quantum microwave signal inherits both classical transmission performance and quantum non-classical features, it can be utilized as a significant signal source for diverse applications in microwave domain, such as quantum communication, quantum navigation and quantum radar, which are based on quantum technologies in large scale and dynamic free space transmission. There are three main experimental platforms on which quantum microwave is studied and produced. They are cavity quantum electrodynamics(C-QED) system, circuit quantum electrodynamics(c-QED) system, and cavity electro-opto-mechanical(EOM) system, involving with several nonlinear effects such as Kerr effect, Casimir effect, three-wave mixing, etc. In this paper, the setups of these platforms and the preparation principles are introduced. Meanwhile, the preparation principles and methods of microwave single photon, entangled microwave photons, squeezed microwave fields and entangled microwave fields are summarized and analyzed in detail from three aspects. The present status of experimental progress in the relevant fields are summarized and listed as well. Besides, key problems in the application of quantum navigation in free space utilizing quantum microwave are probed. Among them, the most pressing ones are preparation ability, decoherence in transmission and detection of entangled quantum microwave signals, which are also discussed and analyzed in this paper. Finally, we look forward to the future development of quantum microwave technology. It mainly consists of manufacturing microwave detectors with high efficiency, designing thermal photon filters, and developing suitable antennas. We hope that this study can provide useful reference for scholars who are engaged in or interested in research related to quantum microwave technologies.

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A Navigation Ranging Scheme With True Random Entangled Microwave Signals

Cited by 4 publications

References 18 publications

Classical expression model of entangled quantum microwave after the measurement

Classical expression model of entangled quantum microwave after the measurement

Microwave electrometry with bichromatic electromagnetically induced transparency in Rydberg atoms

Preparation methods and progress of experiments of quantum microwave

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