Physics – Quantum Physics
Scientific paper
2008-10-28
Physics
Quantum Physics
7 pages with 8 figures; make FIG 1 be color; add some labels in FIG 5 and FIG 6; change the content of the first paragraph of
Scientific paper
10.1103/PhysRevA.79.023830
Faraday rotation is one way to realize quantum non-demolition measurement of electron spin in quantum dots. To describe Faraday rotation, semiclassical models are typically used, based on quantized electron spin states and classical electromagnetic fields. Such treatments neglect the entanglement between electronic and photonic degrees of freedom that produce intrinsic quantum noise, limiting the ultimate sensitivity of this technique. We present a fully quantum-mechanical description of Faraday rotation, and quantify this intrinsic noise. A method for measuring the purity of a given spin state is suggested based on this analysis.
Levy Jeremy
Ma Yanjun
No associations
LandOfFree
Intrinsic Quantum Noise in Faraday Rotation Measurements of a Single Electron Spin does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Intrinsic Quantum Noise in Faraday Rotation Measurements of a Single Electron Spin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intrinsic Quantum Noise in Faraday Rotation Measurements of a Single Electron Spin will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-486312