We derive fidelity tradeoffs for probabilistic minimal disturbance measurements for certain discrete sets of symmetrical single qubit states. We propose and experimentally demonstrate a simple linear optical scheme saturating these tradeoffs in which the degree of disturbance is controlled only by measurement of a single ancillary photon.
PROBABILISTIC MINIMAL DISTURBANCE MEASUREMENT OF SYMMETRICAL QUBIT STATE / Filip, R; MITA L., Jr; DE MARTINI, F; Ricci, Marco; Sciarrino, F.. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 74, 052312(2006).
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Titolo: | PROBABILISTIC MINIMAL DISTURBANCE MEASUREMENT OF SYMMETRICAL QUBIT STATE |
Autori: | |
Data di pubblicazione: | 2006 |
Rivista: | |
Citazione: | PROBABILISTIC MINIMAL DISTURBANCE MEASUREMENT OF SYMMETRICAL QUBIT STATE / Filip, R; MITA L., Jr; DE MARTINI, F; Ricci, Marco; Sciarrino, F.. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 74, 052312(2006). |
Abstract: | We derive fidelity tradeoffs for probabilistic minimal disturbance measurements for certain discrete sets of symmetrical single qubit states. We propose and experimentally demonstrate a simple linear optical scheme saturating these tradeoffs in which the degree of disturbance is controlled only by measurement of a single ancillary photon. |
Handle: | http://hdl.handle.net/20.500.11770/151381 |
Appare nelle tipologie: | 1.1 Articolo in rivista |