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Description
| - Experimental observations are usually described using theoretical models that make assumptions about the dimensionality of the system under consideration. However, would it be possible to assess the dimension of a completely unknown system only from the results of measurements performed on it, without any extra assumption? The concept of a dimension witness(1-6) answers this question, as it allows bounding the dimension of an unknown system only from measurement statistics. Here, we report on the experimental demonstration of dimension witnesses in a prepare and measure scenario(6). We use photon pairs entangled in polarization and orbital angular momentum(7-9) to generate ensembles of classical and quantum states of dimensions up to 4. We then use a dimension witness to certify their dimensionality as well as their quantum nature. Our work opens newavenues in quantum information science, where dimension represents a powerful resource(10-12), especially for device-independent estimation of quantum systems(13-16) and quantum communications(17,18).
- Experimental observations are usually described using theoretical models that make assumptions about the dimensionality of the system under consideration. However, would it be possible to assess the dimension of a completely unknown system only from the results of measurements performed on it, without any extra assumption? The concept of a dimension witness(1-6) answers this question, as it allows bounding the dimension of an unknown system only from measurement statistics. Here, we report on the experimental demonstration of dimension witnesses in a prepare and measure scenario(6). We use photon pairs entangled in polarization and orbital angular momentum(7-9) to generate ensembles of classical and quantum states of dimensions up to 4. We then use a dimension witness to certify their dimensionality as well as their quantum nature. Our work opens newavenues in quantum information science, where dimension represents a powerful resource(10-12), especially for device-independent estimation of quantum systems(13-16) and quantum communications(17,18). (en)
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Title
| - Experimental estimation of the dimension of classical and quantum systems
- Experimental estimation of the dimension of classical and quantum systems (en)
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skos:prefLabel
| - Experimental estimation of the dimension of classical and quantum systems
- Experimental estimation of the dimension of classical and quantum systems (en)
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skos:notation
| - RIV/61989592:15310/12:33140470!RIV13-MSM-15310___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61989592:15310/12:33140470
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - PHOTONS; ENTANGLEMENT; BELL INEQUALITIES; ORBITAL ANGULAR-MOMENTUM (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Hendrych, Martin
- Mičuda, Michal
- Torres, Juan P.
- Acin, Antonio
- Brunner, Nicolas
- Gallego, Rodrigo
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http://linked.open...ain/vavai/riv/wos
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://bibframe.org/vocab/doi
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http://localhost/t...ganizacniJednotka
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