UNIGE document Scientific Article
previous document  unige:36338  next document
add to browser collection

Counting Statistics and Detector Properties of Quantum Point Contacts

Averin, Dmitri V.
Published in Physical Review Letters. 2005, vol. 95, no. 12
Abstract Quantum detector properties of the quantum point contact (QPC) are analyzed for an arbitrary electron transparency and coupling strength to the measured system and are shown to be determined by the electron counting statistics. Conditions of the quantum-limited operation of the QPC detector, which prevent information loss through the scattering time and scattering phases, are found for arbitrary coupling. We show that the phase information can be restored and used for the quantum-limited detection by inclusion of the QPC detector in the electronic Mach-Zehnder interferometer.
PMID: 16197098
Full text
Article (Published version) (126 Kb) - public document Free access
(ISO format)
AVERIN, Dmitri V., SUKHORUKOV, Eugene. Counting Statistics and Detector Properties of Quantum Point Contacts. In: Physical Review Letters, 2005, vol. 95, n° 12. doi: 10.1103/PhysRevLett.95.126803 https://archive-ouverte.unige.ch/unige:36338

376 hits



Deposited on : 2014-05-05

Export document
Format :
Citation style :