Search Results - "Laflamme, Raymond"

Experimental violation of the Leggett-Garg inequality in a three-level system by Katiyar, Hemant, Brodutch, Aharon, Lu, Dawei, Laflamme, Raymond

“…The Leggett-Garg (LG) test of macroscopic realism involves a series of dichotomic non-invasive measurements that are used to calculate a function which has a…”
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Using concatenated quantum codes for universal fault-tolerant quantum gates by Jochym-O'Connor, Tomas, Laflamme, Raymond

“…We propose a method for universal fault-tolerant quantum computation using concatenated quantum error correcting codes. The concatenation scheme exploits the…”
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Quantum State Tomography via Reduced Density Matrices by Xin, Tao, Lu, Dawei, Klassen, Joel, Yu, Nengkun, Ji, Zhengfeng, Chen, Jianxin, Ma, Xian, Long, Guilu, Zeng, Bei, Laflamme, Raymond

“…Quantum state tomography via local measurements is an efficient tool for characterizing quantum states. However, it requires that the original global state be…”
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Experimental implementation of encoded logical qubit operations in a perfect quantum error correcting code by Zhang, Jingfu, Laflamme, Raymond, Suter, Dieter

“…Large-scale universal quantum computing requires the implementation of quantum error correction (QEC). While the implementation of QEC has already been…”
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Hybrid quantum-classical approach to enhanced quantum metrology by Yang, Xiaodong, Chen, Xi, Li, Jun, Peng, Xinhua, Laflamme, Raymond

“…Quantum metrology plays a fundamental role in many scientific areas. However, the complexity of engineering entangled probes and the external noise raise…”
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Experimental Identification of Non-Abelian Topological Orders on a Quantum Simulator by Li, Keren, Wan, Yidun, Hung, Ling-Yan, Lan, Tian, Long, Guilu, Lu, Dawei, Zeng, Bei, Laflamme, Raymond

“…Topological orders can be used as media for topological quantum computing-a promising quantum computation model due to its invulnerability against local…”
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Symmetrized Characterization of Noisy Quantum Processes by Emerson, Joseph, Silva, Marcus, Moussa, Osama, Ryan, Colm, Laforest, Martin, Baugh, Jonathan, Cory, David G, Laflamme, Raymond

“…A major goal of developing high-precision control of many-body quantum systems is to realize their potential as quantum computers. A substantial obstacle to…”
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Heat-bath algorithmic cooling with correlated qubit-environment interactions by Rodríguez-Briones, Nayeli A, Li, Jun, Peng, Xinhua, Mor, Tal, Weinstein, Yossi, Laflamme, Raymond

“…Cooling techniques are essential to understand fundamental thermodynamic questions of the low-energy states of physical systems, furthermore they are at the…”
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Theory of quasi-exact fault-tolerant quantum computing and valence-bond-solid codes by Wang, Dong-Sheng, Wang, Yun-Jiang, Cao, Ningping, Zeng, Bei, Laflamme, Raymond

“…Abstract In this work, we develop the theory of quasi-exact fault-tolerant quantum (QEQ) computation, which uses qubits encoded into quasi-exact quantum…”
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Experimental estimation of average fidelity of a Clifford gate on a 7-qubit quantum processor by Lu, Dawei, Li, Hang, Trottier, Denis-Alexandre, Li, Jun, Brodutch, Aharon, Krismanich, Anthony P, Ghavami, Ahmad, Dmitrienko, Gary I, Long, Guilu, Baugh, Jonathan, Laflamme, Raymond

“…One of the major experimental achievements in the past decades is the ability to control quantum systems to high levels of precision. To quantify the level of…”
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On the freedom in representing quantum operations by Lin, Junan, Buonacorsi, Brandon, Laflamme, Raymond, Wallman, Joel J

“…We discuss the effects of a gauge freedom in representing quantum information processing devices, and its implications for characterizing these devices. We…”
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Unified and generalized approach to quantum error correction by KRIBS, David, LAFLAMME, Raymond, POULIN, David

“…We present a unified approach to quantum error correction, called operator quantum error correction. Our scheme relies on a generalized notion of a noiseless…”
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Simulation of anyonic statistics and its topological path independence using a seven-qubit quantum simulator by Park, Annie Jihyun, McKay, Emma, Lu, Dawei, Laflamme, Raymond

“…Anyons, quasiparticles living in two-dimensional spaces with exotic exchange statistics, can serve as the fundamental units for fault-tolerant quantum…”
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Experimental Implementation of Efficient Quantum Pseudorandomness on a 12-Spin System by Li, Jun, Luo, Zhihuang, Xin, Tao, Wang, Hengyan, Kribs, David, Lu, Dawei, Zeng, Bei, Laflamme, Raymond

“…Quantum pseudorandomness, also known as unitary designs, comprises a powerful resource for emergent quantum technologies. Although in theory pseudorandom…”
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Experimental realization of post-selected weak measurements on an NMR quantum processor by Lu, Dawei, Brodutch, Aharon, Li, Jun, Li, Hang, Laflamme, Raymond

“…The ability to post-select the outcomes of an experiment is a useful theoretical concept and experimental tool. In the context of weak measurements,…”
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Coherent control of two nuclear spins using the anisotropic hyperfine interaction by Zhang, Yingjie, Ryan, Colm A, Laflamme, Raymond, Baugh, Jonathan

“…We demonstrate coherent control of two nuclear spins mediated by the magnetic resonance of a hyperfine-coupled electron spin. This control is used to create a…”
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Defect production in non-equilibrium phase transitions: experimental investigation of the Kibble-Zurek mechanism in a two-qubit quantum simulator by Zhang, Jingfu, Cucchietti, Fernando M, Laflamme, Raymond, Suter, Dieter

“…Systems passing through quantum critical points at finite rates have a finite probability of undergoing transitions between different eigenstates of the…”
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Enhancing quantum control by bootstrapping a quantum processor of 12 qubits by Lu, Dawei, Li, Keren, Li, Jun, Katiyar, Hemant, Park, Annie Jihyun, Feng, Guanru, Xin, Tao, Li, Hang, Long, Guilu, Brodutch, Aharon, Baugh, Jonathan, Zeng, Bei, Laflamme, Raymond

“…Accurate and efficient control of quantum systems is one of the central challenges for quantum information processing. Current state-of-the-art experiments…”
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Theory of quantum error correction for general noise by Knill, E, Laflamme, R, Viola, L

“…A measure of quality of an error-correcting code is the maximum number of errors that it is able to correct. We show that a suitable notion of "number of…”
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Independent state and measurement characterization for quantum computers by Lin, Junan, Wallman, Joel J., Hincks, Ian, Laflamme, Raymond

“…Correctly characterizing state preparation and measurement (SPAM) processes is a necessary step towards building reliable quantum processing units (QPUs). In…”
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