3.9k citations
- Tsinghua UniversityCN533 papers
- Collaborative Innovation Center of Quantum MatterCN194 papers
- Chinese Academy of SciencesCN134 papers
- Beijing Academy of Quantum Information SciencesCN95 papers
- Institute of PhysicsPL84 papers
- Frontier Science Center for Quantum Information of the Ministry of Education of ChinaCN66 papers
- University of Science and Technology of ChinaCN56 papers
- RIKEN Center for Emergent Matter ScienceJP38 papers
- University of Chinese Academy of SciencesCN36 papers
- Peking UniversityCN34 papers
- Southern University of Science and TechnologyCN34 papers
- Jinan Institute of Quantum TechnologyCN29 papers
10 papers · 2 filters
The transport character of quantum state in one-dimensional coupled-cavity-arrays: effect of the number of photons and entanglement degree
Shao-Qiang Ma, Guo-Feng Zhang
The transport properties of the photons injected into one-dimensional coupled-cavity-arrays (CCAs) are studied. It is found that the number of photons cannot change the evolution c…
Tomography is necessary for universal entanglement detection with single-copy observables
Dawei Lu, Tao Xin, Nengkun Yu +7
Entanglement, one of the central mysteries of quantum mechanics, plays an essential role in numerous applications of quantum information theory. A natural question of both theoreti…
Decoy-state quantum key distribution with biased-bases revisited
Z. -W. Yu, Y. -H. Zhou, X. -B. Wang
In order to improve the key rate of the decoy-state method, we need to jointly study yields of different bases. Given the delicate fact that pulses of the same preparation state ca…
Universal quantum gates for photon-atom hybrid systems assisted by bad cavities
Guan-Yu Wang, Qian Liu, Hai-Rui Wei +3
We present two deterministic schemes for constructing a CNOT gate and a Toffoli gate on photon-atom and photon-atom-atom hybrid quantum systems assisted by bad cavities, respective…
Geometry of reduced density matrices for symmetry-protected topological phases
Ji-Yao Chen, Zhengfeng Ji, Zheng-Xin Liu +2
In this paper, we study the geometry of reduced density matrices for states with symmetry-protected topological (SPT) order. We observe ruled surface structures on the boundary of…
Spin squeezing of the non-Hermitian one-axis twisting model
Ling-Na Wu, Guang-Ri Jin, Li You
In the absence of decay, the conditional dynamics for an opensystem is often describable by a non-Hermitian Hamiltonian. This study investigates spin squeezing (SS) in non-Hermitia…