Publikation: Electronic implementations of interaction-free measurements
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2010
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Chirolli, Luca
Strambini, E.
Giovannetti, Vittorio
Taddei, Fabio
Piazza, Vincenzo
Fazio, Rosario
Beltram, Fabio
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Physical Review B. 2010, 82(4). ISSN 1098-0121. Verfügbar unter: doi: 10.1103/PhysRevB.82.045403
Zusammenfassung
Three different implementations of interaction-free measurements (IFMs) in solid-state nanodevices are discussed. The first one is based on a series of concatenated Mach-Zehnder interferometers, in analogy to optical-IFM setups. The second one consists of a single interferometer and concatenation is achieved in the time domain making use of a quantized electron emitter. The third implementation consists of an asymmetric Aharonov-Bohm ring. For all three cases we show that the presence of a dephasing source acting on one arm of the interferometer can be detected without degrading the coherence of the measured current. Electronic implementations of IFMs in nanoelectronics may play a fundamental role as very accurate and noninvasive measuring schemes for quantum devices.
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CHIROLLI, Luca, E. STRAMBINI, Vittorio GIOVANNETTI, Fabio TADDEI, Vincenzo PIAZZA, Rosario FAZIO, Fabio BELTRAM, Guido BURKARD, 2010. Electronic implementations of interaction-free measurements. In: Physical Review B. 2010, 82(4). ISSN 1098-0121. Verfügbar unter: doi: 10.1103/PhysRevB.82.045403BibTex
@article{Chirolli2010Elect-12443,
year={2010},
doi={10.1103/PhysRevB.82.045403},
title={Electronic implementations of interaction-free measurements},
number={4},
volume={82},
issn={1098-0121},
journal={Physical Review B},
author={Chirolli, Luca and Strambini, E. and Giovannetti, Vittorio and Taddei, Fabio and Piazza, Vincenzo and Fazio, Rosario and Beltram, Fabio and Burkard, Guido}
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