36,207 research outputs found
Signal mixer for optical heterodyne receiver
Incoming signal is mixed with local oscillator signal by a beam splitter inside laser cavity. Laser power can be reduced by 50 to 100 times
Dephasing in a quantum dot due to coupling with a quantum point contact
We consider the dephasing of an one-electron state in a quantum dot due to
charge fluctuations in a biased quantum point contact coupled to the dot
capacitively. The contribution to the dephasing rate due to the bias depends on
temperature and bias in the same way as shot-noise in the point contact at zero
frequency, but do not follow the |t|^2(1-|t|^2) suppression.Comment: 6 pages, no figures, Europhysics Letters styl
What is Law?
You broke the law. There should be a law. Loi du 29 juillet 1881 sur la
liberte de la presse. It is the law of God. It is the law of our ancestors. It
is a law of nature. It is the second law of thermodynamics. It is the tax code.
What is law? What common concept is expressed in the many uses of the word law
and its synonyms? What single concept of law is encompassed in its encoding in
scientific, judicial, and customary forms? Since understandings of law can be
culture specific, what concept of law is common across social systems? This
paper will develop a definition of law--and a way to measure the binding power
of a law or legal system--that is applicable across forms and civilizations. In
developing the definition, the paper will demonstrate that a QBist
understanding of quantum mechanics can serve as a Rosetta Stone which allows us
to reconcile Western and non-Western scientific systems.Comment: Minor corrections and updates. 16 page
- …
