Published October 21, 2010
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Entanglement Verification with Finite Data
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.
Additional Information
© 2010 The American Physical Society. Received 4 May 2010; published 21 October 2010.Attached Files
Published - BlumeKohout2010p11748Phys_Rev_Lett.pdf
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BlumeKohout2010p11748Phys_Rev_Lett.pdf
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- Eprint ID
- 20756
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- CaltechAUTHORS:20101111-095711336
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2010-11-16Created from EPrint's datestamp field
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2021-11-09Created from EPrint's last_modified field