5 papers
Universal quantum state purification under energy-preserving constraints
Xing-Chen Guo, Benchi Zhao, Xin Wang
Pure quantum states are a fundamental resource for quantum information processing, but unavoidable noise degrades their purity and limits the performance of quantum tasks. Quantum…
The communication power of indefinite causal order
Xuanqiang Zhao, Benchi Zhao, Cyril Branciard +1
Quantum theory is in principle compatible with scenarios where physical processes occur in an indefinite order, potentially yielding advantages in a broad range of information proc…
Power and limitations of distributed quantum state purification
Benchi Zhao, Yu-Ao Chen, Xuanqiang Zhao +3
Quantum state purification protocols, which mitigate noise by converting multiple copies of noisy quantum states into fewer copies with a lower noise level, have applications in qu…
Dynamic LOCC Circuits for Automated Entanglement Manipulation
Xia Liu, Jiayi Zhao, Benchi Zhao +1
Due to the limited qubit number of quantum devices, distributed quantum computing is considered a promising pathway to overcome this constraint. In this paradigm, multiple quantum…
Power of quantum measurement in simulating unphysical operations
Xuanqiang Zhao, Lei Zhang, Benchi Zhao +1
The manipulation of quantum states through linear maps beyond quantum operations has many important applications in various areas of quantum information processing. Current methods…