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5 papers · 1 filter
Quantifying the imaginarity of quantum states via Tsallis relative entropy
Jianwei Xu
It is a fundamental question that why quantum mechanics uses complex numbers instead of only real numbers. To address this topic, recently, a rigorous resource theory for the imagi…
Imaginarity of Gaussian states
Jianwei Xu
It has been a long-standing debate that why quantum mechanics uses complex numbers but not only real numbers. To address this topic, in recent years, the imaginarity theory has bee…
Quantifying the phase of quantum states
Jianwei Xu
Phase is a basic ingredient for quantum states since quantum mechanics uses complex numbers to describe quantum states. In this letter, we introduce a rigorous framework to quantif…
CoMP Transmission in Downlink NOMA-Based Cellular-Connected UAV Networks
Hongguang Sun, Linyi Zhang, Tony Q. S. Quek +2
In this paper, we study the integration between the coordinated multipoint (CoMP) transmission and the non-orthogonal multiple access (NOMA) in the downlink cellular-connected UAV…
Understanding the Gain of Deploying IRSs in Large-scale Heterogeneous Cellular Networks
Hu Cheng, Hongguang Sun, Linyi Zhang +3
As the superior improvement on wireless network coverage, spectrum efficiency and energy efficiency, Intelligent reflecting surface (IRS) has received more and more attention. In t…