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Bounding the quantu...
Bounding the quantum dimension with contextuality
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- Guehne, Otfried (author)
- University of Siegen, Germany
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- Budroni, Costantino (author)
- University of Siegen, Germany
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- Cabello, Adan (author)
- University of Seville, Spain
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- Kleinmann, Matthias (author)
- University of Siegen, Germany
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- Larsson, Jan-Åke (author)
- Linköpings universitet,Informationskodning,Tekniska högskolan
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(creator_code:org_t)
- American Physical Society, 2014
- 2014
- English.
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In: Physical Review A. Atomic, Molecular, and Optical Physics. - : American Physical Society. - 1050-2947 .- 1094-1622. ; 89:6
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https://liu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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Abstract
Subject headings
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- We show that the phenomenon of quantum contextuality can be used to certify lower bounds on the dimension accessed by the measurement devices. To prove this, we derive bounds for different dimensions and scenarios of the simplest noncontextuality inequalities. Some of the resulting dimension witnesses work independently of the prepared quantum state. Our constructions are robust against noise and imperfections, and we show that a recent experiment can be viewed as an implementation of a state-independent quantum dimension witness.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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