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Nonadiabatic geometric angle in nuclear magnetic resonance connection. (English) Zbl 1077.81514
Mladenov, Ivaïlo M.(ed.) et al., Proceedings of the 6th international conference on geometry, integrability and quantization, Sts. Constantine and Elena, Bulgaria, June 3–10, 2004. Sofia: Bulgarian Academy of Sciences (ISBN 954-84952-9-5/pbk). 175-182 (2005).
Summary: By using the Grassmannian invariant-angle coherents states approach, the classical analogue of the Aharonov-Anandan nonadiabatic geometrical phase is found for a spin one-half in Nuclear Magnetic Resonance (NMR). In the adiabatic limit, the semi-classical relation between the adiabatic Berry’s phase and Hannay’s angle gives exactly the experimental result observed by D. Suter et al. [Mol. Phys. 61, 1327–1340 (1987)].
MSC:
81Q70Differential-geometric methods in quantum mechanics