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Optical Implementation of Two Programmable Quantum Measurement Devices

✍ Scribed by Černoch, A. ;Soubusta, J. ;Fiurášek, J. ;Dušek, M.


Book ID
119922560
Publisher
Akadmiai Kiad
Year
2005
Tongue
English
Weight
276 KB
Volume
23
Category
Article
ISSN
1589-9535

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Programmable quantum measurement device
✍ J. Fiurášek; M. Dušek; R. Filip 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 72 KB

## Abstract A “universal” quantum measurement device is proposed. It can approximate any projective measurement on a qubit. The measurement basis is selected by the quantum state of a “program register''. The device is optimized with respect to maximal average fidelity. A contra‐intuitive result is