Dr. Qiang Miao Profile

Dr. Qiang Miao

at Air Force Engineering Univ

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Proceedings Article | 18 December 2019 Paper

The time domain waveform of dual-path entangled microwave signals

Xiang Li, De-wei Wu, Qiang Miao

Proceedings Volume 11339, 113390K (2019) https://doi.org/10.1117/12.2548065

KEYWORDS: Microwave radiation, Quantum information, Signal processing, Radio propagation, Entangled states, Signal detection, Stochastic processes, Information technology, Quantum communications, Quantum computing

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The generation and detection of dual-path entangled quantum microwave are widely investigated in recent years. Nevertheless, entangled quantum microwave is usually expressed and processed in quantum frame. In order to observe the entangled information and apply it to some fields, we also need to measure it and transform it into the form of electric signals. Therefore, we investigate the time domain waveform of dual-path entangled microwave signals from the view of measurement. In different measurement interval, the waveform of one-path entangled microwave signal is completely random. While the waveforms of two-path entangled microwave signal always meet the relationship of positive correlation or negative correlation. The randomicity and correlativity is the most intrinsic characteristic of entangled microwave signals. By analyzing the relation of mean value, fluctuation, entangled photon number and squeezed parameter, we explain the essence of the quantum stochastic and correlated characteristics in physics. A more intuitive understanding of entangled microwave signals would be felt in this research, which makes us easier to utilize the characteristic for the potential applications.

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