Search Results - "Turner, Peter S."
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Quantum communication using a bounded-size quantum reference frame
Published in New journal of physics (08-06-2009)Get full text
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Precision-guaranteed quantum tomography
Published in Physical review letters (18-10-2013)“…Quantum state tomography is currently the standard tool for verifying that a state prepared in the lab is close to an ideal target state, but up to now there…”
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Derandomizing Quantum Circuits with Measurement-Based Unitary Designs
Published in Physical review letters (20-05-2016)“…Entangled multipartite states are resources for universal quantum computation, but they can also give rise to ensembles of unitary transformations, a topic…”
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Entanglement cost of implementing controlled-unitary operations
Published in Physical review letters (28-10-2011)“…We investigate the minimum entanglement cost of the deterministic implementation of two-qubit controlled-unitary operations using local operations and…”
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Quantum data compression of a qubit ensemble
Published in Physical review letters (17-10-2014)“…Data compression is a ubiquitous aspect of modern information technology, and the advent of quantum information raises the question of what types of…”
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Effect of non-negativity on estimation errors in one-qubit state tomography with finite data
Published in New journal of physics (01-08-2012)“…We analyze the behavior of estimation errors evaluated by two loss functions, namely the Hilbert-Schmidt distance and infidelity, in one-qubit state tomography…”
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Approaching the quantum limit of precision in absorbance estimation using classical resources
Published in Physical review research (12-08-2020)“…The utility of transmission measurement has made it a target for quantum enhanced measurement strategies. Here we find if the length of an absorbing object is…”
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Quantum Data Compression of a Qubit Ensemble
Published in Physical review letters (17-10-2014)Get full text
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Degradation of a quantum reference frame
Published in New journal of physics (19-04-2006)Get full text
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Degradation of a quantum directional reference frame as a random walk
Published in Journal of modern optics (10-09-2007)“…We investigate whether the degradation of a quantum directional reference frame through repeated use can be modelled as a classical direction undergoing a…”
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The Curious Nonexistence of Gaussian 2-Designs
Published in Communications in mathematical physics (01-03-2014)“…Ensembles of pure quantum states whose 2nd moments equal those of the unitarily uniform Haar ensemble— 2-designs —are optimal solutions for several tasks in…”
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Quantum computation over the butterfly network
Published in Physical review. A, Atomic, molecular, and optical physics (27-07-2011)“…In order to investigate distributed quantum computation under restricted network resources, we introduce a quantum computation task over the butterfly network…”
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Testing randomness using multi-photon interference
Published in 2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications (01-06-2014)“…We demonstrate pseudorandom optical processes known as t-designs, showing that for t =1(2) they are statistically indistinguishable from random operations for…”
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Testing randomness with photons by direct characterization of optical t -designs
Published in Physical review. A, Atomic, molecular, and optical physics (17-02-2015)Get full text
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Discriminating distinguishability
Published 04-06-2018“…Phys. Rev. A 98, 043839 (2018) Particle distinguishability is a significant challenge for quantum technologies, in particular photonics where the…”
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Postselective quantum interference of distinguishable particles
Published 19-08-2016“…We show that it is possible for completely distinguishable particles to interfere postselectively without operating on, or indeed having any knowledge of, the…”
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Error probability analysis in quantum tomography: A tool for evaluating experiments
Published in Physical review. A, Atomic, molecular, and optical physics (18-01-2011)Get full text
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Precision-guaranteed quantum tomography
Published 03-10-2018“…Phys. Rev. Lett. 111, 160406 (2013) Quantum state tomography is the standard tool in current experiments for verifying that a state prepared in the lab is…”
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