Dissipative two-level spin system and geometrical phase. (English) Zbl 1098.81043
Mladenov, Ivaïlo (ed.) et al., Proceedings of the 7th international conference on geometry, integrability and quantization, Sts. Constantine and Elena, Bulgaria, June 2–10, 2005. Sofia: Bulgarian Academy of Sciences (ISBN 954-8495-30-9/pbk). 79-88 (2006).
Summary: We propose to extend the concept of geometric phase to quantum dissipative systems, in the case of meta-stable spin states in magnetic resonance. We use the generalized version of Lewis-Riensenfeld invariant theory to study the dissipative systems described by non-hermitian time-dependent Hamiltonian.
|81Q70||Differential-geometric methods in quantum mechanics|
|81S25||Quantum stochastic calculus|