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...
Spin-resolved quantum-dot resonance fluorescence (2008)
Vamivakas, A. Nick, Zhao, Yong, Lu, Chao-Yang, Atature, Mete
In the quest for physically realizable quantum information science (QIS) primitives, self-assembled quantum dots (QDs) serve a dual role as sources of photonic (flying) qubits and traps for electron...
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...
Demonstration of Shor's quantum factoring algorithm using photonic qubits (2007)
Lu, Chao-Yang, Browne, Daniel E., Yang, Tao, Pan, Jian-Wei
We report an experimental demonstration of a complied version of Shor's algorithm using four photonic qubits. We choose the simplest instance of this algorithm, that is, factorization of N=15 in the...
Zhang, Qiang, Bao, Xiao-Hui, Lu, Chao-Yang, Zhou, Xiao-Qi, Yang, Tao, Rudolph, Terry, ...
We present a feasible and efficient scheme, and its proof-of-principle demonstration, of creating entangled photon pairs in an event-ready way using only simple linear optical elements and single...
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....
Quantum-Relay-Assisted Key Distribution over High Photon Loss Channels (2005)
Zhang, An-Ning, Chen, Yu-Ao, Lu, Chao-Yang, Zhou, Xiao-Qi, Zhao, Zhi, Zhang, Qiang, ...
The maximum distance of quantum communication is limited due to the photon loss and detector noise. Exploiting entanglement swapping, quantum relay could offer ways to extend the achievable distance...
Experimental Quantum Secret Sharing and Third-Man Quantum Cryptography (2005)
Chen, Yu-Ao, Zhang, An-Ning, Zhao, Zhi, Zhou, Xiao-Qi, Lu, Chao-Yang, Peng, Cheng-Zhi, ...
Quantum secret sharing (QSS) is a protocol to split a message into several parts so that no subset of parts is sufficient to read the message, but the entire set is. In the scheme, three parties...
Experimental Construction of Optical Multi-qubit Cluster States From Bell States (2005)
Zhang, An-Ning, Lu, Chao-Yang, Zhou, Xiao-Qi, Chen, Yu-Ao, Zhao, Zhi, Yang, Tao, ...
Cluster states serve as the central physical resource for the measurement-based quantum computation. We here present a simple experimental demonstration of the scalable cluster-state-construction...
Zhao, Zhi, Zhang, An-Ning, Zhou, Xiao-Qi, Chen, Yu-Ao, Lu, Chao-Yang, Karlsson, Anders, ...
We report an experimental realization of both optimal asymmetric cloning and telecloning of single photons by making use of partial teleportation of an unknown state. In the experiment, we...
Design and fabrication of high performance UMOSFETs in 4H silicon carbide (2003)
Due to their high breakdown strength, power transistors made of wide bandgap semiconductors, for example diamond, III-V nitrides, and silicon carbide (SIC), can have 2-3 orders of magnitude lower...
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...