J. Wineland, “Realization of quantum error correction,” Nature 432, 602–5 (2005).J Chiaverini, D Leibfried, T Schaetz, M D Barrett, R B Blakestad, J Britton, W M Itano, J D Jost, E Knill, C Langer, R Ozeri, and D J Wineland. Realization of quantum error correction. ...
We verify error correction by comparing the corrected final state to the uncorrected state and to the initial state. In principle, the approach enables a quantum state to be maintained by means of repeated error correction, an important step towards scalable fault-tolerant quantum computation using ...
errorcontroltoprotectquantuminformationagainstunavoid- ablenoise.Quantumerrorcorrection 2,3 protectsinformation storedintwo-levelquantumsystems(qubits)byrectifyingerrors withoperationsconditionedonthemeasurementoutcomes. Error-correctionprotocolshavebeenimplementedinnuclear ...
quantum error correction, and is thus less severe for fault-tolerance31. Nevertheless, it is always desirable to achieve and to verify lower crosstalk errors to save the overhead for large-scale quantum error correction. As for the entanglement fidelity of the communication qubit, our current ...
quantum cloning and quantum error correction;(4) To avoid decoherence in quantum algorithms,we construct a decoherence-free subspace(DFS) by using multiple quantum coherences.The validity of this DFS is also experimentally verified on our NMR quantum computers.The DFS makes the three unaddressed ...
[2] Chiaverini, J. et al.Realization of quantum error correction. Nature 432, 602-605 (2004). 机译:量子信息处理算法通常被分解成量子门操作的序列,最常见的是单量子位和二量子位的门[1]。虽然这种运算构成了量子计算的通用集,但作用于两个以上量子位的门可以简化复杂量子算法的实现[2]。因此,单个三...
This allows us to measure the fidelity of a controlled-not logic gate and to experimentally investigate the error model for our computer. Based on the latter analysis, we test an important assumption underlying nearly all models of quantum error correction, the independence of errors on different ...
The exact crossover boundary is sensitive to platform-specific details such as gate times and control capabilities; given the large spread in gate timescales (≳3 orders of magnitude) across present-day platforms49,50, and uncertain overheads from quantum error correction or mitigation, we avoid ...
Ghosh, D., Agarwal, P., Pandey, P., Behera, B.K., Panigrahi, P.K.: Automated error correction in IBM quantum computer and explicit generalization. Quantum Inf. Process. 17, 153 (2018) Article ADS MathSciNet Google Scholar Roffe, J., Headley, D., Chancellor, N., Horsman, D., ...
Universal quantum error-correction requires the ability of manipulating entanglement of five or more particles. Although entanglement of three or four part... Z Zhao,YA Chen,AN Zhang,... - Elsevier/North-Holland, 被引量: 818发表: 2004年 Grover's search algorithm: an optical approach Experimenta...