Search Results - "Durkin, Gabriel A."

Local and global distinguishability in quantum interferometry by Durkin, Gabriel A, Dowling, Jonathan P

“…A statistical distinguishability based on relative entropy characterizes the fitness of quantum states for phase estimation. This criterion is employed in the…”
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Parameter estimation with entangled photons produced by parametric down-conversion by Cable, Hugo, Durkin, Gabriel A

“…We explore the advantages offered by twin light beams produced in parametric down-conversion for precision measurement. The symmetry of these bipartite quantum…”
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Towards practical quantum metrology with photon counting by Matthews, Jonathan CF, Zhou, Xiao-Qi, Cable, Hugo, Shadbolt, Peter J, Saunders, Dylan J, Durkin, Gabriel A, Pryde, Geoff J, O’Brien, Jeremy L

“…Quantum metrology aims to realise new sensors operating at the ultimate limit of precision measurement. However, optical loss, the complexity of proposed…”
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Preferred measurements: optimality and stability in quantum parameter estimation by Durkin, Gabriel A

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Scaling laws for precision in quantum interferometry and the bifurcation landscape of the optimal state by Knysh, Sergey, Smelyanskiy, Vadim N., Durkin, Gabriel A.

“…Phase precision in optimal two-channel quantum interferometry is studied in the limit of large photon number N>>1, for losses occurring in either one or both…”
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Multiphoton entanglement concentration and quantum cryptography by Durkin, Gabriel A, Simon, Christoph, Bouwmeester, Dik

“…Multiphoton states from parametric down-conversion can be entangled both in polarization and photon number. Maximal high-dimensional entanglement can be…”
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Multipartite entanglement inequalities via spin vector geometry by DURKIN, Gabriel A, SIMON, Christoph

“…We introduce inequalities for multipartite entanglement, derived from the geometry of spin vectors. The criteria are constructed iteratively from cross and dot…”
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Publisher’s Note: Parameter Estimation with Entangled Photons Produced by Parametric Down-Conversion [Phys. Rev. Lett. 105 , 013603 (2010)] by Cable, Hugo, Durkin, Gabriel A.

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Quantum Speed-Up at Zero Temperature via Coherent Catalysis by Durkin, Gabriel A

“…Phys. Rev. A 99, 032315 (2019) It is known that secondary non-stoquastic drivers may offer speed-ups or catalysis in some models of adiabatic quantum…”
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Goldilocks Probes for Noisy Interferometry via Quantum Annealing to Criticality by Durkin, Gabriel A

“…Phys. Rev. A 94, 043821 (2016) Quantum annealing is explored as a resource for quantum information beyond solution of classical combinatorial problems…”
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Preferred Measurements: Optimality and Stability in Quantum Parameter Estimation by Durkin, Gabriel A

“…New J. Phys. 12 023010 (10pp) (2010) We explore precision in a measurement process incorporating pure probe states, unitary dynamics and complete measurements…”
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Estimation of Phase and Diffusion: Combining Quantum Statistics and Classical Noise by Knysh, Sergey I, Durkin, Gabriel A

“…Coherent ensembles of $N$ qubits present an advantage in quantum phase estimation over separable mixtures, but coherence decay due to classical phase diffusion…”
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Classical Fisher Information in Quantum Metrology -- Interplay of Probe, Dynamics and Measurement by Durkin, Gabriel A

“…We introduce a positive Hermitian operator, the Fisher operator, and use it to examine a measurement process incorporating unitary dynamics and complete…”
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Quantum Phase Estimation with Entangled Photons produced by Parametric Down Conversion by Cable, Hugo, Durkin, Gabriel A

“…Phys. Rev. Lett. 105, 013603 (2010) We explore the advantages offered by twin light beams produced in parametric down-conversion for precision measurement. The…”
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True Limits to Precision via Unique Quantum Probe by Knysh, Sergey I, Chen, Edward H, Durkin, Gabriel A

“…Quantum instruments derived from composite systems allow greater measurement precision than their classical counterparts due to coherences maintained between N…”
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Scaling laws for precision in quantum interferometry and bifurcation landscape of optimal state by Knysh, Sergey, Smelyanskiy, Vadim N, Durkin, Gabriel A

“…Phase precision in optimal 2-channel quantum interferometry is studied in the limit of large photon number $N\gg 1$, for losses occurring in either one or both…”
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Multi-Partite Entanglement Inequalities via Spin Vector Geometry by Durkin, Gabriel A, Simon, Christoph

“…Phys. Rev. Lett. 95 180402 (October 2005) We introduce inequalities for multi-partite entanglement, derived from the geometry of spin vectors. The criteria are…”
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Local and Global Distinguishability in Quantum Interferometry by Durkin, Gabriel A, Dowling, Jonathan P

“…A statistical distinguishability based on relative entropy characterises the fitness of quantum states for phase estimation. This criterion is employed in the…”
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Resilience of multiphoton entanglement under losses by Durkin, Gabriel A., Simon, Christoph, Eisert, Jens, Bouwmeester, Dirk

“…We analyze the resilience under photon loss of the bipartite entanglement present in multiphoton states produced by parametric down-conversion. The…”
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Practical Quantum Metrology by Matthews, Jonathan C. F, Zhou, Xiao-Qi, Cable, Hugo, Shadbolt, Peter J, Saunders, Dylan J, Durkin, Gabriel A, Pryde, Geoff J, O'Brien, Jeremy L

“…NPJ Quantum Information, vol 2, article no. 16023 (2016) Quantum metrology research promises approaches to build new sensors that achieve the ultimate level of…”
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