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Quantum Information Science news

Quantum metrology paper in PRL

Tillmann's paper on the quantum enhanced estiamtion of non-commuting phases is published in Physical Review Letters. It shows that the simultaneous estimation of all three components of a magnetic field can be better than estimating them indivdually. It presents the measurements that come close to attaining the quantum limit. Our study also reveals that too much quantum entanglement may be detrimental to attaining the Heisenberg scaling in the estimation of unitarily generated parameters.

Here is the link to a highlight on the Physics website.

Sun 14 Feb 2016, 12:18 | Tags: Publications

Paper on tomography of superconducting detectors published in New Journal of Physics

Latest paper with Ian Walmsley's group at Oxford, studying how photon numbers can be inferred from the continuous trace outputs of superconducting transition edge sensors.

Wed 28 Oct 2015, 11:26 | Tags: Publications

Weak measurement metrology paper published in Physical Review Letters

after an 18-month long refereeing progress. See here for the published version, and here for the ancient arXiv version.

Joint work with Lijian Zhang (Nanjing) and Ian Walmsley (Oxford).

Thu 28 May 2015, 22:31 | Tags: Publications

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