4 papers · 1 filter
Why Some Quantum States Cannot Be Recovered
Yuan Liu, Linhan Lin, Ke-Mi Xu
The recovery of quantum information after subsystem loss is a central challenge in quantum information processing. However, some states remain beyond the reach of any recovery stra…
Precision Interferometry with Collectively Enhanced Atomic Mirror
Yuan Liu, Ke-Mi Xu, Hong-Bo Sun +1
Quantum metrology exploits quantum resources to enhance measurement precision beyond the classical limit. Conventional protocols normally rely on the preparation of delicate quantu…
Unconditional quantum teleportational advantage of single photons
Li-Chao Peng, Dian Wu, Xue-Mei Gu +10
Photon loss is the biggest enemy in quantum communications. Direct transmission typically results in a small fraction of photons surviving over long distances, hindering advanced a…
Boosted fusion gates above the percolation threshold for scalable graph-state generation
Yong-Peng Guo, Geng-Yan Zou, Xing Ding +15
Fusing small resource states into a larger, fully connected graph-state is essential for scalable photonic quantum computing. Theoretical analysis reveals that this can only be ach…