Abstract: The word "information" has been given many different meanings by various writers in the general field of information theory. It is likely that at least a number of these will prove ...

Kyoto-based precision equipment manufacturer Shimadzu Corporation has begun selling the world's most accurate commercially available timepiece -- a strontium optical lattice clock with a deviation of ...

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China Guangdong Provincial Key Laboratory of Optical Information Materials ...