6533b870fe1ef96bd12cfa98
RESEARCH PRODUCT
JOSEPHSON MESOJUNCTIONS AS DETECTORS OF LOW-INTENSITY QUANTIZED COHERENT FAR-INFRARED FIELDS
Anna NapoliRosanna MiglioreAntonino Messinasubject
Josephson effectPhysicsMesoscopic physicsCondensed matter physicsQuantum noiseStatistical and Nonlinear PhysicsCondensed Matter::Mesoscopic Systems and Quantum Hall EffectCondensed Matter Physicslaw.inventionPi Josephson junctionSQUIDFar infraredlawCondensed Matter::SuperconductivityQuantum mechanicsSuperconducting tunnel junctionQuantumdescription
We show that the quantum nature of a mesoscopic Josephson junction may be exploited for detecting low-intensity electromagnetic quantized fields. In particular we prove that intensity and phase of single-mode quantized coherent field may be reconstructed measuring amplitude and quantum noise of the first quantum Shapiro step occurring in the I-V characteristic of the ultrasmall Josephson junction.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-10-30 | International Journal of Modern Physics B |