Periodical phenomena or, more precisely, quasiperiodical phenomena, occupy a central position in physics. For a long time, their most important parameter has be

This text on precision frequency measurement and its key enabling techniques includes reviews written by some of the most experienced researchers in their respe

Modern quantum measurement for graduate students and researchers in quantum information, quantum metrology, quantum control and related fields.

Of all measurement units, frequency is the one that may be determined with the highest degree of accuracy. It equally allows precise measurements of other physi