Type of Publication: | Preprint |
Author: | Chirolli, Luca; Strambini, E.; Giovannetti, Vittorio; Taddei, Fabio; Piazza, Vincenzo; Fazio, Rosario; Beltram, Fabio; Burkard, Guido |
Year of publication: | 2010 |
ArXiv-ID: | arXiv:1004.1895 |
Summary: |
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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Subject (DDC): | 530 Physics |
Bibliography of Konstanz: | Yes |
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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
@unpublished{Chirolli2010Elect-24815, title={Electronic implementations of Interaction-Free Measurements}, year={2010}, author={Chirolli, Luca and Strambini, E. and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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