Quasi-Intrinsic Angular Momentum and the Measurement of Its Spectrum
نویسندگان
چکیده
منابع مشابه
Quasi-intrinsic angular momentum and the measurement of its spectrum.
We introduce the concept of quasi-intrinsic angular momentum to denote fields for which the mean value of the angular momentum is unaltered by a lateral shift of the rotation axis but the spectrum changes. This property is exemplified by the orbital angular momentum of a beam of light about its propagation direction. We propose an interferometric experiment to measure efficiently the exact angu...
متن کاملThe Classical Spin or Intrinsic Angular Momentum
It is possible that in classical mechanics the concept of spin, in the sense of intrinsic angular momentum, has not been given the importance that, due to its unique character, it perhaps deserves. Nevertheless, there is more than sufficient evidence backing up the importance of taking spin into account, not only in quantum mechanics but also in classical mechanics. Its unique physical nature d...
متن کاملQuasi-Local Energy-Momentum and Angular Momentum in General Relativity
The present status of the quasi-local mass, energy-momentum and angular-momentum constructions in general relativity is reviewed. First, the general ideas, concepts, and strategies, as well as the necessary tools to construct and analyze the quasi-local quantities, are recalled. Then, the various specific constructions and their properties (both successes and deficiencies are discussed. Finally...
متن کاملIntrinsic angular momentum in general relativity
There are several definitions of the notion of angular momentum in general relativity. However none of them can be said to capture the physical notion of intrinsic angular momentum of the sources in the presence of gravitational radiation. We present a definition which is appropriate for the description of intrinsic angular momentum in radiative spacetimes. This notion is required in calculatio...
متن کاملMeasurement of the orbital-angular-momentum spectrum of fields with partial angular coherence using double-angular-slit interference
We implement an interferometric method using two angular slits to measure the orbital-angular-momentum (OAM) mode spectrum of a field with partial angular coherence. As the angular separation of the slits changes, an interference pattern for a particular OAM mode is obtained. The visibility of this interference pattern as a function of angular separation is equivalent to the angular correlation...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2006
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.96.113901