تقرير
Electronic implementations of Interaction-Free Measurements
| العنوان: | Electronic implementations of Interaction-Free Measurements |
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| المؤلفون: | Chirolli, L., Strambini, E., Giovannetti, V., Taddei, F., Piazza, V., Fazio, R., Beltram, F., Burkard, G. |
| المصدر: | Phys. Rev. B 82, 045403 (2010) |
| سنة النشر: | 2010 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Quantum Physics |
| الوصف: | 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. Comment: 12 pages, 10 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.82.045403 |
| URL الوصول: | http://arxiv.org/abs/1004.1895 |
| رقم الأكسشن: | edsarx.1004.1895 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.82.045403 |
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