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Description
| - We investigate the optimal trade-off between information gained about an unknown coherent state and the state disturbance caused by the measurement process. We propose several optical schemes that can enable this task, and we implement one of them, a scheme that relies on only linear optics and homodyne detection. Experimentally we reach near optimal performance, limited only by detection inefficiencies. In addition, we show that such a scheme can be used to enhance the transmission fidelity of a class of noisy channels.
- We investigate the optimal trade-off between information gained about an unknown coherent state and the state disturbance caused by the measurement process. We propose several optical schemes that can enable this task, and we implement one of them, a scheme that relies on only linear optics and homodyne detection. Experimentally we reach near optimal performance, limited only by detection inefficiencies. In addition, we show that such a scheme can be used to enhance the transmission fidelity of a class of noisy channels. (en)
- Nerovnost mezi optimální fidelitou získanou z gaussovského měření a fidelitou porušeného stavu je odvozena pro koherentní stavy. Je navrženo měření saturující tuto nerovnost a následně je experimentálně demonstrováno, s využitím pouze lineární optiky, homodynní detekce elektro-optické kontroly. Bylo dosaženo téměř optimálního výsledku, který byl limitován již pouze detekční účinností. (cs)
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Title
| - Experimental demonstration of coherent state estimation with minimal disturbance
- Experimentální demonstrace měření koherentních stavů s minimální poruchou (cs)
- Experimental demonstration of coherent state estimation with minimal disturbance (en)
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skos:prefLabel
| - Experimental demonstration of coherent state estimation with minimal disturbance
- Experimentální demonstrace měření koherentních stavů s minimální poruchou (cs)
- Experimental demonstration of coherent state estimation with minimal disturbance (en)
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skos:notation
| - RIV/61989592:15310/06:00003044!RIV07-GA0-15310___
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GP202/03/D239), Z(MSM6198959213)
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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/61989592:15310/06:00003044
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - QUANTUM CRYPTOGRAPHY; INFORMATION (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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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...vavai/riv/projekt
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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
| - Filip, Radim
- Andersen, Ulrik
- Leuchs, Gerd
- Sabuncu, Metin
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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://localhost/t...ganizacniJednotka
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is http://linked.open...avai/riv/vysledek
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