Experimental Test of Bell inequalities with Six-Qubit Graph States (2009)
Gao, Wei-Bo, Yao, Xing-Can, Xu, Ping, Gühne, Otfried, Cabello, Adán, Lu, Chao-Yang, ...
We report on the experimental realization of two different Bell inequality tests based on six-qubit linear-type and Y-shape graph states. For each of these states, the Bell inequalities tested are...
Experimental Realization of a Controlled-NOT Gate with Four-Photon Six-Qubit Cluster States (2009)
Gao, Wei-Bo, Xu, Ping, Yao, Xing-Can, Gühne, Otfried, Cabello, Adán, Lu, Chao-Yang, ...
We experimentally demonstrate an optical controlled-NOT (CNOT) gate with arbitrary single inputs based on a 4-photon 6-qubit cluster state entangled both in polarization and spatial modes. We first...
Experimental demonstration of topological error correction (2009)
Gao, Wei-Bo, Fowler, Austin G., Raussendorf, Robert, Yao, Xing-Can, Lu, He, Xu, Ping, ...
Topological error correction--a novel method to actively correct errors based on cluster states with topological properties--has the highest order of tolerable error rates known to date (10^{-2})....
Experimental demonstration of a hyper-entangled ten-qubit Schr\"odinger cat state (2008)
Gao, Wei-Bo, Lu, Chao-Yang, Yao, Xing-Can, Xu, Ping, Gühne, Otfried, Goebel, Alexander, ...
Coherent manipulation of an increasing number of qubits for the generation of entangled states has been an important goal and benchmark in the emerging field of quantum information science. The...
Experimental quantum coding against qubit loss error (2008)
Lu, Chao-Yang, Gao, Wei-Bo, Zhang, Jin, Zhou, Xiao-Qi, Yang, Tao, Pan, Jian-Wei
A significant obstacle for practical quantum computation is the loss of physical qubits in quantum computers, a decoherence mechanism most notably in optical systems. Here we experimentally...
Demonstrating anyonic fractional statistics with a six-qubit quantum simulator (2007)
Lu, Chao-Yang, Gao, Wei-Bo, Gühne, Otfried, Zhou, Xiao-Qi, Chen, Zeng-Bing, Pan, Jian-Wei
Anyons are exotic quasiparticles living in two dimensions that do not fit into the usual categories of fermions and bosons, but obey a new form of fractional statistics. Following a recent proposal...
Toolbox for entanglement detection and fidelity estimation (2007)
Gühne, Otfried, Lu, Chao-Yang, Gao, Wei-Bo, Pan, Jian-Wei
The determination of the state fidelity and the detection of entanglement are fundamental problems in quantum information experiments. We investigate how these goals can be achieved with a minimal...
Experimental entanglement of six photons in graph states (2006)
Lu, Chao-Yang, Zhou, Xiao-Qi, Gühne, Otfried, Gao, Wei-Bo, Zhang, Jin, Yuan, Zhen-Sheng, ...
Graph states are special kinds of multipartite entangled states that correspond to mathematical graphs where the vertices take the role of quantum spin systems and the edges represent interactions....
Peng, Cheng-Zhi, Zhang, Jun, Yang, Dong, Gao, Wei-Bo, Ma, Huai-Xin, Yin, Hao, ...
We demonstrate the decoy-state quantum key distribution (QKD) with one-way quantum communication in polarization space over 102km. Further, we simplify the experimental setup and use only one...
As a continuum work of Bhaumik et al who derived the common eigenvector of the number-difference operator Q and pair-annihilation operator ab (J. Phys. A9 (1976) 1507) we search for the simultaneous...
Experimental quantum coding against qubit loss error
Lu, Chao-Yang, Gao, Wei-Bo, Zhang, Jin, Zhou, Xiao-Qi, Yang, Tao, Pan, Jian-Wei
The fundamental unit for quantum computing is the qubit, an isolated, controllable two-level system. However, for many proposed quantum computer architectures, especially photonic systems, the qubits...