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Generation and detection of photonic qutrit states by linear optics
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT.ORCID iD: 0000-0002-2082-9583
2008 (English)In: Quantum information & computation, ISSN 1533-7146, Vol. 8, no 5, 386-398 p.Article in journal (Refereed) Published
Abstract [en]

We address the problem of generation and detection of the four mutually unbiased biphoton polarization-qutrit bases by linear optics. First, the generation of the bases is studied. Our numeric results show that the linear optics method can be used to generate the 4 mutually unbiased basis qutrit states probabilistically with high fidelity. Second, we investigate whether or not linear polarization-optics components are sufficient to realize the simultaneous detection of the qutrit states forming a complete basis. Analytical results show that every state in two of the bases, namely only half of the 4 mutually unbiased bases qutrit states can be identified.

Place, publisher, year, edition, pages
2008. Vol. 8, no 5, 386-398 p.
Keyword [en]
linear optics, mutually unbiased based, photonic qutrit, quantum cryptography, systems, realization, biphotons
URN: urn:nbn:se:kth:diva-17435ISI: 000254677700002ScopusID: 2-s2.0-65549102757OAI: diva2:335479
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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Björk, Gunnar
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