Results 81 to 90 of about 374,177 (189)
Intermediate quantum maps for quantum computation
, 2005 We study quantum maps displaying spectral statistics intermediate between Poisson and Wigner-Dyson. It is shown that they can be simulated on a quantum computer with a small number of gates, and efficiently yield information about fidelity decay or ...
B. Georgeot +4 more
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Precision bounds for characterising quantum measurements
Nature CommunicationsQuantum measurements, alongside quantum states and processes, form a cornerstone of quantum information processing. However, unlike states and processes, their efficient characterisation remains relatively unexplored.
Aritra Das +8 more
doaj +1 more source
Quantum probe hyperpolarisation of molecular nuclear spins
Nature Communications, 2018 Molecules with ‘hyperpolarised’ nuclear spins can be used to improve MRI performance but require an efficient polarisation method. Broadway et al. demonstrate a quantum control protocol using a nitrogen vacancy centre inside a diamond to hyperpolarise ...
David A. Broadway +6 more
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Quantum Spin Dynamics and Quantum Computation [PDF]
, 1999 We describe a simulation method for a quantum spin model of a generic, general purpose quantum computer. The use of this quantum computer simulator is illustrated through several implementations of Grover's database search algorithm.
De Raedt, H. +4 more
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Quantum algorithms for problems in number theory, algebraic geometry, and group theory
, 2012 Quantum computers can execute algorithms that sometimes dramatically outperform classical computation. Undoubtedly the best-known example of this is Shor's discovery of an efficient quantum algorithm for factoring integers, whereas the same problem ...
Sasaki, Yoshitaka, van Dam, Wim
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Optical Quantum Computing [PDF]
Science, 2007 In 2001, all-optical quantum computing became feasible with the discovery that scalable quantum computing is possible using only single-photon sources, linear optical elements, and single-photon detectors. Although it was in principle scalable, the massive resource overhead made the scheme practically daunting.
openaire +4 more sources
Efficient Quantum Computation with Probabilistic Quantum Gates [PDF]
, 2005 With a combination of the quantum repeater and the cluster state approaches, we show that efficient quantum computation can be constructed even if all the entangling quantum gates only succeed with an arbitrarily small probability p.
Duan, L.-M., Kimble, H. J.
core
Hybrid Quantum Computing [PDF]
, 2003 12 pages, latex2e, submitted to Physical Review ...
openaire +2 more sources
Long optical and electron spin coherence times for erbium ions in silicon
npj Quantum InformationSpins in silicon that are accessible via a telecom-compatible optical transition are a versatile platform for quantum information processing that can leverage the well-established silicon nanofabrication industry.
Ian R. Berkman +14 more
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Quantum Discord and Quantum Computing - An Appraisal
, 2011 We discuss models of computing that are beyond classical. The primary motivation is to unearth the cause of nonclassical advantages in computation. Completeness results from computational complexity theory lead to the identification of very disparate ...
ANIL SHAJI +8 more
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