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Entanglement Verification with Finite Data

Blume-Kohout, Robin and Yin, Jun O. S. and van Enk, S. J. (2010) Entanglement Verification with Finite Data. Physical Review Letters, 105 (17). Art. No. 170501. ISSN 0031-9007.

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Suppose an experimentalist wishes to verify that his apparatus produces entangled quantum states. A finite amount of data cannot conclusively demonstrate entanglement, so drawing conclusions from real-world data requires statistical reasoning. We propose a reliable method to quantify the weight of evidence for (or against) entanglement, based on a likelihood ratio test. Our method is universal in that it can be applied to any sort of measurements. We demonstrate the method by applying it to two simulated experiments on two qubits. The first measures a single entanglement witness, while the second performs a tomographically complete measurement.

Item Type:Article
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Additional Information:© 2010 The American Physical Society. Received 4 May 2010; published 21 October 2010.
Issue or Number:17
Classification Code:PACS: 03.67.Mn, 02.50.Tt
Record Number:CaltechAUTHORS:20101111-095711336
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Official Citation:Blume-Kohout, R., J. O. S. Yin, et al. (2010). "Entanglement Verification with Finite Data." Physical Review Letters 105(17): 170501.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:20756
Deposited By: Tony Diaz
Deposited On:16 Nov 2010 19:43
Last Modified:03 Oct 2019 02:14

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