Study of the qualitative behavior of squeezing and entanglement in quantum two-mode squeezed radar

Hosseiny, Seyed Mohammad; Norouzi, Milad; Seyedyazdi, Jamileh; Irannezhad, Fatemeh

doi:10.30473/jphys.2022.65651.1122

Document Type : Research

Authors

¹ PhD Student, Department of Physics, Urmia University, Urmia, Iran

² PhD Student, Department of Physics, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran

³ Associate Professor, Department of Physics, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran

https://doi.org/10.30473/jphys.2022.65651.1122

Abstract

In this work, for the first time, the qualitative behaviors of squeezing and entanglement in quantum two-mode squeezed radars (QTMS) when the target is present and the signal is transmitted to the target are calculated and their qualitative behaviors are evaluated. The squeezing parameter is a tool in theory similar to the laboratory's signal power. Therefore, the correlation between signal-idler increases or decreases with signal power changes. This increase or decrease of correlation (especially entanglement) leads to improvement or weakening of the performance of quantum radars. In this work, it can be seen that with the increase of the squeezing parameter even at room temperature (300 K), the behavioral quality of the squeezing increases, and hence, the correlation between the signal and the idler also increases. We also examine the entanglement, where we see that there is a maximum limit to increase in signal power that cannot be exceeded, however, this limit can be violated by choosing a suitable receiver, hence at high powers maintained entanglement. Therefore, by controlling the squeezing parameter and choosing a suitable receiver, which leads to the improvement of squeezing and entanglement behaviors, the performance of a QTMS radar can be optimized at room temperature.

Keywords

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Quarterly Journal of Optoelectronic

Study of the qualitative behavior of squeezing and entanglement in quantum two-mode squeezed radar

References

References

Volume 4, Issue 2 - Serial Number 11
September 2022
Pages 17-26

Study of the qualitative behavior of squeezing and entanglement in quantum two-mode squeezed radar

References

References

Volume 4, Issue 2 - Serial Number 11September 2022Pages 17-26

Volume 4, Issue 2 - Serial Number 11
September 2022
Pages 17-26