Berry's phase in magnetic resonance
- 20 August 1987
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 61 (6) , 1327-1340
- https://doi.org/10.1080/00268978700101831
Abstract
According to Berry, quantum states of a hamiltonian which varies adiabatically through a circuit C in parameter space may acquire geometrical phase factors exp (iγ(C)) in addition to the normal dynamical phase factors exp ((-i/ħ) ∝ E(t) dt). We present N.M.R. experiments in the rotating frame which bear out these predictions for simple conical circuits, and point out that they are related to familiar behaviour based on the classical Bloch equations and on Haeberlen-Waugh coherent averaging theory. Extensions to coupled spins and electric quadrupolar effects are discussed.This publication has 19 references indexed in Scilit:
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