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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. http://resolver.caltech.edu/CaltechAUTHORS:20101111-095711336

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Abstract

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
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevLett.105.170501 DOIUNSPECIFIED
http://prl.aps.org/abstract/PRL/v105/i17/e170501PublisherUNSPECIFIED
http://link.aps.org/doi/10.1103/PhysRevLett.105.170501PublisherUNSPECIFIED
Additional Information:© 2010 The American Physical Society. Received 4 May 2010; published 21 October 2010.
Classification Code:PACS: 03.67.Mn, 02.50.Tt
Record Number:CaltechAUTHORS:20101111-095711336
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20101111-095711336
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
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:16 Nov 2010 19:43
Last Modified:26 Dec 2012 12:37

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