1996
DOI: 10.1063/1.471423
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Semiclassical analysis of resonance states induced by a conical intersection

Abstract: The resonance states induced by nonadiabatic coupling in the conical intersection problem are analyzed semiclassically. Not only the general framework but also the explicit analytical expressions of resonance positions and widths are presented. Interestingly, the nonadiabatic transition schemes are found to be quite different in the two representations employed, i.e., the adiabatic and generalized adiabatic ͑or dynamical state, or postadiabatic͒ representations. In the former case the transition is assigned to… Show more

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Cited by 16 publications
(5 citation statements)
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“…Specifically, regions of non-analytic behavior are expected to be found in the upper half, which is the one that corresponds to negative temperatures, and analytic behavior is expected in the lower half plane, that corresponds to positive temperatures. The formal extension of the nuclear coordinate space onto a complex plane, as is done in [44,45], is an essentially equivalent procedure, since in the semi-classical formalism of these works the particle coordinates depend parametrically on time. Complex topological phases are considered in, e.g., [170,171], which can arise from a non-Hermitean Hamiltonian.…”
Section: Aspects Of Phase In Moleculesmentioning
confidence: 99%
See 1 more Smart Citation
“…Specifically, regions of non-analytic behavior are expected to be found in the upper half, which is the one that corresponds to negative temperatures, and analytic behavior is expected in the lower half plane, that corresponds to positive temperatures. The formal extension of the nuclear coordinate space onto a complex plane, as is done in [44,45], is an essentially equivalent procedure, since in the semi-classical formalism of these works the particle coordinates depend parametrically on time. Complex topological phases are considered in, e.g., [170,171], which can arise from a non-Hermitean Hamiltonian.…”
Section: Aspects Of Phase In Moleculesmentioning
confidence: 99%
“…It features in wave optics [28] for "complex analytic signals" (which is an electromagnetic field with only positive frequencies) and in non-demolition measurements performed on photons [41]. For transitions between adiabatic states (which is also discussed in this review), it was previously introduced in several works ( [42] - [45]).…”
Section: Introduction and Preview Of The Chaptermentioning
confidence: 99%
“…Such potentials are always real (provided that the coupling P is real) because the matrix U + i cP is Hermitian. The post-adiabatic potentials in the sense of Zhu et al are just the usual adiabatic potentials. In a number of papers by Berry et al, a hierarchy of corrections to the adiabatic approximation is studied in certain systems with classical slow variables and classical or quantum fast variables, and some of those corrections (e.g., the so-called geometric magnetism and deterministic friction) are sometimes referred to as post-adiabatic corrections. , However, such corrections have nothing in common with the post-adiabatic representations and potentials as introduced by Klar and Fano …”
Section: Post-adiabatic Iterative Proceduresmentioning
confidence: 99%
“…Thus the above replacement should be applied only to the LZ-case. complex crossing point, 20, 29, 31, 36, 92, 107, 108, 131, 133, 159, 194, 195, 197, 206, 16,145,147,149,179,183,185,252, 286 nonadiabatic tunneling (NT) type, 8, 9, 28, 62-65, 68, 78, 80, 84, 85, 125, 150-152, 154-157, 179, 180, 182, 183, 209, 224, 229, 231, 235, 236, …”
Section: Appendix B Time-dependentmentioning
confidence: 99%