Comparison of quantal, classical, and semiclassical behavior at an isolated avoided crossing

Comparison of quantal, classical, and semiclassical behavior at an isolated avoided crossing

“Quantal” behavior in classical probability

Phenomena generally believed specific to quantum mechanics — the incompatibility and valueindeterminacy of variables, the non-existence of dispersion-free states, the failure of the standard marginal-probability formula, and the failure of the distributive law of disjunction (“interference”) — are exemplified in a fully non-quantal setting: Sequences of events in a nondeterministic system of mo...

Investigation of Temperature Effect in Landau-Zener Avoided Crossing

Considering a temperature dependent two-level quantum system, we have numerically solved the Landau-Zener transition problem. The method includes the incorporation of temperature effect as a thermal noise added Schrödinger equation for the construction of the Hamiltonian. Here, the obtained results which describe the changes in the system including the quantum states and the transition pro...

Non-adiabatic passage through an avoided crossing

By the application of an ultra fast magnetic field sweeping (2.0 × 105 T/sec) and the zero-field magnetic resonance (ZFMR)/FID techniques, we are able to probe the dynamics at the level anti-crossing region of the photo-excited triplet states of pentacene-h14 in p-terphenyl (PHPT) and pentacene-d14 in p-terphenyl (PDPT) systems. The crossing is a non-adiabatic passage at such a high jumping rat...

an inverstigation into the shrinkage behavior (kinetics) of microfilled hybrid and nano dental composites

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