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检索条件"机构=Institute for Quantum Computing and Department of Combinatorics and Optimization"
233 条 记 录,以下是201-210 订阅
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quantum algorithms for algebraic problems
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Reviews of Modern Physics 2010年 第1期82卷 1-1页
作者: Andrew M. Childs Wim van Dam []Department of Combinatorics and Optimization and Institute for Quantum Computing University of Waterloo Waterloo Ontario Canada N2L 3G1
quantum computers can execute algorithms that dramatically outperform classical computation. As the best-known example, Shor discovered an efficient quantum algorithm for factoring integers, whereas factoring appears ... 详细信息
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Robustness of ethnocentrism to changes in interpersonal interactions
Robustness of ethnocentrism to changes in interpersonal inte...
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2010 AAAI Fall Symposium
作者: Kaznatcheev, Artem School of Computer Science Department of Psychology McGill University 3600 University Street Montreal QC H3A 2T8 Canada Department of Combinatorics and Optimization Institute for Quantum Computing University of Waterloo 200 University Avenue West Waterloo ON N2L 3G1 Canada
We use the methods of evolutionary game theory and computational modelling to examine the evolution of ethnocentrism. We show that ethnocentrism evolves in a spatially structured population not only under prisoner'... 详细信息
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Interacting Boson Problems Can Be QMA Hard
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Physical Review Letters 2010年 第4期104卷 040501-040501页
作者: Tzu-Chieh Wei Michele Mosca Ashwin Nayak Institute for Quantum Computing University of Waterloo Waterloo Ontario Canada Department of Physics and Astronomy University of Waterloo Waterloo Ontario Canada Department of Physics and Astronomy University of British Columbia Vancouver British Columbia Canada Department of Combinatorics and Optimization University of Waterloo Waterloo Ontario Canada Perimeter Institute for Theoretical Physics Waterloo Ontario Canada
computing the ground-state energy of interacting electron problems has recently been shown to be hard for quantum Merlin Arthur (QMA), a quantum analogue of the complexity class NP. Fermionic problems are usually hard... 详细信息
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Tensor product representation of a topological ordered phase: Necessary symmetry conditions
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Physical Review B 2010年 第16期82卷 165119-165119页
作者: Xie Chen Bei Zeng Zheng-Cheng Gu Isaac L. Chuang Xiao-Gang Wen Department of Physics Massachusetts Institute of Technology Cambridge Massachusetts 02139 USA Institute for Quantum Computing University of Waterloo Waterloo Ontario Canada Department of Combinatorics and Optimization University of Waterloo Waterloo Ontario Canada Department of Mathematics and Statistics University of Guelph Guelph Ontario Canada Kavli Institute for Theoretical Physics University of California Santa Barbara California 93106 USA
The tensor product representation of quantum states leads to a promising variational approach to study quantum phase and quantum phase transitions, especially topological ordered phases which are impossible to handle ...
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Entanglement and area law with a fractal boundary in a topologically ordered phase
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Physical Review A 2010年 第1期81卷 010102(R)-010102(R)页
作者: Alioscia Hamma Daniel A. Lidar Simone Severini Perimeter Institute for Theoretical Physics 31 Caroline St. N N2L 2Y5 Waterloo Ontario Canada Departments of Chemistry Electrical Engineering and Physics and Center for Quantum Information Science and Technology University of Southern California Los Angeles California 90089 USA Institute for Quantum Computing and Department of Combinatorics & Optimization University of Waterloo 200 University Ave. W N2L 3G1 Waterloo Ontario Canada
quantum systems with short-range interactions are known to respect an area law for the entanglement entropy: The von Neumann entropy S associated to a bipartition scales with the boundary p between the two parts. Here... 详细信息
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quantum State Reduction for Universal Measurement Based Computation
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Physical Review Letters 2010年 第2期105卷 020502-020502页
作者: Xie Chen Runyao Duan Zhengfeng Ji Bei Zeng Department of Physics Massachusetts Institute of Technology Cambridge Massachusetts USA Centre for Quantum Computation and Intelligent Systems (QCIS) Faculty of Engineering and Information Technology University of Technology Sydney NSW Australia Department of Computer Science and Technology Tsinghua National Laboratory for Information Science and Technology Tsinghua University Beijing China Perimeter Institute for Theoretical Physics Waterloo Ontario Canada State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing China Institute for Quantum Computing University of Waterloo Waterloo Ontario Canada Department of Combinatorics and Optimization University of Waterloo Waterloo Ontario Canada
Measurement based quantum computation, which requires only single particle measurements on a universal resource state to achieve the full power of quantum computing, has been recognized as one of the most promising mo... 详细信息
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quantum-capacity-approaching codes for the detected-jump channel
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Physical Review A 2010年 第6期82卷 062324-062324页
作者: Markus Grassl Zhengfeng Ji Zhaohui Wei Bei Zeng Centre for Quantum Technologies National University of Singapore Singapore 117543 Singapore Perimeter Institute for Theoretical Physics Waterloo Ontario N2L 2Y5 Canada State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing 100190 China Department of Mathematics and Statistics University of Guelph Guelph Ontario N1G 2W1 Canada Institute for Quantum Computing and Department of Combinatorics and Optimization University of Waterloo Waterloo Ontario N2L 3G1 Canada
The quantum-channel capacity gives the ultimate limit for the rate at which quantum data can be reliably transmitted through a noisy quantum channel. Degradable quantum channels are among the few channels whose quantu... 详细信息
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Multi-error-correcting amplitude damping codes
Multi-error-correcting amplitude damping codes
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IEEE International Symposium on Information Theory
作者: Runyao Duan Markus Grassl Zhengfeng Ji Bei Zeng State Key Laboratory of Intelligent Technology and Systems Tsinghua National Laboratory for Information Science and Technology Department of Computer Science and Technology Tsinghua University Beijing China Centre for Quantum Computation and Intelligent Systems (QCIS) Faculty of Engineering and Information Technology University of Technology Sydney NSW Australia Centre for Quantum Technologies National University of Singapore Singapore Perimeter Institute of Theoretical Physics Waterloo ONT Canada State Key Laboratory of Computer Science Institute of Software Chinese Academy and Sciences Beijing China Institute for Quantum Computing and the Department of Combinatorics and Optimization University of Waterloo Waterloo ONT Canada
We construct new families of multi-error-correcting quantum codes for the amplitude damping channel. Our key observation is that, with proper encoding, two uses of the amplitude damping channel simulate a quantum eras... 详细信息
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A note on observables for counting trails and paths in graphs
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Journal of Mathematical Modelling and Algorithms 2009年 第3期8卷 335-342页
作者: Markopoulou, Fotini Severini, Simone Perimeter Institute for Theoretical Physics Waterloo N2L 2Y5 ON Canada Institute for Quantum Computing and Department of Combinatorics and Optimization University of Waterloo Waterloo N2L 3G1 ON 200 University Avenue West Canada
We point out that the total number of trails and the total number of paths of given length, between two vertices of a simple undirected graph, are obtained as expectation values of specifically engineered quantum mech... 详细信息
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Universal Computation by quantum Walk
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Physical Review Letters 2009年 第18期102卷 180501-180501页
作者: Andrew M. Childs Department of Combinatorics and Optimization and Institute for Quantum Computing University of Waterloo 200 University Avenue West Waterloo Ontario Canada N2L 3G1
In some of the earliest work on quantum computing, Feynman showed how to implement universal quantum computation with a time-independent Hamiltonian. I show that this remains possible even if the Hamiltonian is restri... 详细信息
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