Integrated-optics circuits for validation of non-classicality

Crespi, Andrea, Bentivegna, Marco, Pitsios, Ioannis, Rusca, Davide, Poderini, Davide, Carvacho, Gonzalo, D'Ambrosio, Vincenzo, Cabello, Adan, Sciarrino, Fabio and Osellame, Roberto 2017. Integrated-optics circuits for validation of non-classicality. Presented at: 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, Germany, 25-29 June 2017. 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 10.1109/CLEOE-EQEC.2017.8087407

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Abstract

Summary form only given. Contrarily to the classical physics picture, according to quantum mechanics the observable properties of the objects do not yield defined values, until a measurement is performed. The measurement outcome depends indeed also on the set of observables that is being measured [1]. Such a fundamental aspect of Nature is named quantum contextuality and it has been studied in several experimental systems, including single particles [2, 3]. Interestingly, it was recently suggested that even the non-classical power of quantum computing originates from contextuality [4]. Therefore, it is highly relevant to find experimental evidence of this aspect in technological platforms that may be adopted in future quantum computing devices, such as integrated photonics [5-7]. In this work we investigate experimentally quantum contextuality of a single photon on-a-chip, employing reconfigurable photonic circuits fabricated by femtosecond laser waveguide writing [7, 8].

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Publisher:	IEEE
ISBN:	978-1-5090-6736-7
Last Modified:	23 Jan 2020 04:20
URI:	https://orca.cardiff.ac.uk/id/eprint/119279

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