In this paper, we propose a novel quantum backscatter communications (QBC) protocol, inspired by the illumination (QI) concept. QBC paradigm, transmitter generates entangled photon pairs. The signal is transmitted and idler kept at receiver. tag antenna communicates performing pulse amplitude modulation (PAM), binary phase shift keying (BPSK) or quadratic (QPSK) on impinging antenna. Using sum-frequency-generation receiver, our protocol achieves 6 dB error exponent gain for PAM BPSK, 3 QPSK...

The recent advances in the field of microwave superconducting circuits open way for a multitude engineering applications that revolutionize classical communications. To exploit this new technology, we propose novel quantum-enhanced backscattering system based on laws quantum physics. Both transmitter and receiver are mechanical nature accommodated at infrastructure side, while device is classical. advocated breaks performance barrier systems approaches ultimate attainable sensitivity....

Backscattered signals are always obscured by the unavoidable channel noise. However, exploiting quantum physics recent protocols had been developed to enhance probability of detecting backscattered in a very noisy environment [1], [2]. In this paper we propose new detection scheme that is simpler nature than sum frequency receiver was proposed for illumination protocol [3]. Signals generated using spontaneous parametric down conversion (SPDC) and transmitted via simple modulation technique...

Microwave quantum information networks require reliable transmission of single photon propagating modes over lossy channels. In this article we propose a microwave <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">noise-less linear amplifier</i> (NLA) suitable to circumvent the losses incurred by flying undergoing an xmlns:xlink="http://www.w3.org/1999/xlink">amplitude damping channel</i> (ADC). The proposed model is constructed engineering...

In quantum illumination (QI) the non-classical correlations between continuous variable (CV) entangled modes of radiation are exploited to detect presence a target embedded in thermal noise. The extreme environment where QI outperforms its optimal classical counterpart suggests that applications microwave domain would benefit most from this new sensing paradigm. However all proposed receivers rely on ideal photon counters or detectors, which not currently feasible domain. Here we propose...

In <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">quantum illumination</i> (QI) the non-classical correlations between xmlns:xlink="http://www.w3.org/1999/xlink">continuous variable</i> (CV) entangled modes of radiation are exploited to detect presence a target embedded in thermal noise. The extreme environment where QI outperforms its optimal classical counterpart suggests that applications microwave domain would benefit most from this new...

Microwave quantum information networks require reliable transmission of single photon propagating modes over lossy channels. In this article we propose a microwave noise-less linear amplifier (NLA) suitable to circumvent the losses incurred by flying undergoing an amplitude damping channel (ADC). The proposed model is constructed engineering simple one-dimensional four node cluster state. Contrary conventional NLAs based on scissors (QS), amplification realized without need for number...

In this paper, we propose a novel quantum backscatter communications (QBC) protocol, inspired by the illumination (QI) concept. QBC paradigm, transmitter generates entangled photon pair. The signal is transmitted and idler kept at receiver. tag antenna communicates performing pulse amplitude modulation (PAM), binary phase shift keying (BPSK) or quadratic (QPSK) on impinging antenna. Using sum-frequency-generation receiver, our protocol achieves 6 dB error exponent gain for PAM BPSK, 3 QPSK...

Quantum sensing based on entangled photon pairs is gradually establishing itself as a cornerstone in modern communication networks. The unrivalled capability of quantum techniques distilling signals plagued by noise, renders them suitable for deployment backscatter Several attempts have been made recently to utilize signal- idler photons, enhance the sensitivity photo- detection However, these efforts always assumed lossless retention mode, which challenging task from practical perspective....