Definition for "Spin Echo" in the Quantum Dictionary

- Modern Physics -

Quantum Mechanics Dictionary

An angular momentum concept defining quantized rotational degrees of freedom and their algebraic structure. It governs discrete measurement outcomes, coupling rules, and the response to external fields through well-defined operators. It does not describe classical rotation directly and requires correct quantum numbers and coupling conventions to be applied consistently.

Natural & Formal Sciences Dictionary

A pulse-sequence technique in magnetic resonance that applies radiofrequency pulses to an ensemble of precessing spins so that phase dispersion accumulated from static inhomogeneities is reversed and a coherent signal (the echo) is recovered at a predictable later time; used to characterize transverse relaxation and to reduce effects of field inhomogeneity.