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46 papers · 2 filters
Fault-tolerant quantum error correction code conversion
Charles D. Hill, Austin G. Fowler, David S. Wang +1
In this paper we demonstrate how data encoded in a five-qubit quantum error correction code can be converted, fault-tolerantly, into a seven-qubit Steane code. This is achieved by…
Memory-Enhanced Noiseless Cross Phase Modulation
M. Hosseini, S. Rebic, B. M. Sparkes +3
Using a gradient echo memory, we experimentally demonstrate cross phase modulation (XPM) between two optical pulses; one stored and one freely propagating through the memory medium…
Using weak values to experimentally determine "negative probabilities" in a two-photon state with Bell correlations
B. L. Higgins, M. S. Palsson, G. Y. Xiang +2
Bipartite quantum entangled systems can exhibit measurement correlations that violate Bell inequalities, revealing the profoundly counter-intuitive nature of the physical universe.…
Near-deterministic quantum teleportation and resource-efficient quantum computation using linear optics and hybrid qubits
Seung-Woo Lee, Hyunseok Jeong
We propose a scheme to realize deterministic quantum teleportation using linear optics and hybrid qubits. It enables one to efficiently perform teleportation and universal linear-o…
Generalisations of the recent Pusey-Barrett-Rudolph theorem for statistical models of quantum phenomena
Michael J. W. Hall
Pusey, Barrett and Rudolph (PBR) have recently given a completely novel argument that restricts the class of possible models for quantum phenomena (arXiv:1111.3328). In these notes…
Error tolerance of the BosonSampling model for linear optics quantum computing
Peter P. Rohde, Timothy C. Ralph
Linear optics quantum computing (LOQC) is a promising approach to implementing scalable quantum computation (QC). However, this approach has very demanding physical resource requir…