Dwell-time distributions in quantum mechanics
arXiv:0901.1371 · doi:10.1007/978-3-642-03174-8_5
Abstract
Some fundamental and formal aspects of the quantum dwell time are reviewed, examples for free motion and scattering off a potential barrier are provided, as well as extensions of the concept. We also examine the connection between the dwell time of a quantum particle in a region of space and flux-flux correlations at the boundaries, as well as operational approaches and approximations to measure the flux-flux correlation function and thus the second moment of the dwell time, which is shown to be characteristically quantum, and larger than the corresponding classical moment even for freely moving particles.
To appear in "Time in Quantum Mechanics, Vol. 2", Springer 2009, ed. by J. G. Muga, A. Ruschhaupt and A. del Campo
References in corpus (9)
- A measurement-based approach to quantum arrival times
- Quantum reflection and dwell times of metastable states
- Generalized relation between pulsed and continuous measurements in the quantum Zeno effect
- Ramsey interferometry with ultracold atoms
- Optimal atomic detection by control of detuning and spatial dependence of laser intensity
- Quantum time-of-flight measurements: kick clock versus continuous clock
- Ramsey interferometry with a two-level Tonks-Girardeau gas
- On the classical-quantum correspondence for the scattering dwell time
- Relation between quantum dwell times and flux-flux correlations