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29 March 2024
 
  » arxiv » quant-ph/0411180

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Experimental Demonstration of Quantum State Multi-meter and One-qubit Fingerprinting in a Single Quantum Device
Jiangfeng Du ; Ping Zou ; Daniel K. L. Oi ; Xinhua Peng ; L. C. Kwek ; C. H. Oh ; Artur Ekert ;
Date 24 Nov 2004
Subject quant-ph
AbstractWe experimentally demonstrate in NMR a quantum interferometric multi-meter for extracting certain properties of unknown quantum states without resource to quantum tomography. It can perform direct state determinations, eigenvalue/eigenvector estimations, purity tests of a quantum system, as well as the overlap of any two unknown quantum states. Using the same device, we also demonstrate one-qubit quantum fingerprinting.
Source arXiv, quant-ph/0411180
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