Speaker
Description
Recent experimental and theoretical works have reignited long-standing debates over the time taken for certain quantum transitions, such as tunneling, to occur. This is important, as tunneling is a common quantum phenomenon in molecular systems where nonadiabatic couplings are significant, and certain simulation methods struggle to accommodate its effects. Here we propose a new type of quantum mechanical flight time, based on weak-averaging, and show the conditions under which it becomes equal to another measure known as the phase time. We compare these results to recent Larmor time experiments for tunneling, and show that the Larmor time and dwell time coincide under the same circumstances as the new flight time and the phase time. Finally, we discuss ongoing work to evaluate flight times in two-level systems with strong nonadiabatic couplings emulating certain electronic transitions, and show the effects nonadiabatic couplings have on tunneling times.
| Presenter name | Tom Rivlin |
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