Abstract By introducing a series of mathematical symbols and phase quantization condition, we give a new approach to the phase operator, which is defined directly in the conventionally-used infinite-dimensional state spaces. Properties of the phase operator and its expressions in some widely-used representations are given. As an example, phase properties of coherent states are analyzed based on this definition.
Received: 25 February 1997
Revised: 02 July 1997
Accepted manuscript online:
Fund: Project supported by the National Natural Science foundation of China.
Cite this article:
DUAN LU-MING (段路明), GUO GUANG-CAN (郭光灿) ALTERNATIVE APPROACH TO THE PHASE OPERATOR AND ITS PROPERTIES 1997 Acta Physica Sinica (Overseas Edition) 6 811
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
