Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Seminar Series SEM-LPTM-UCP
Subjects quant-ph
Date Thursday 14 November 2019
Time 14:00
Institute LPTM
Seminar Room 4.13 St Martin II
Speaker's Last Name Sokolovski
Speaker's First Name Dmitri
Speaker's Email Address
Speaker's Institution Departmento de Quimica-Fisica, UPV/EHU, Leioa, Spain
Title No time at the end of the tunnel?
Abstract For a classical particle, one easily defines such time parameters as the net duration spent in a region of space, or a delay experienced due to the action of a force. Tunnelling, on the other hand, requires coherent superposition of various (classical-like) scenarios, so that the information about these times parameters is lost to interference, and an attempt to extract their values is frustrated by the uncertainty principle. Response of the particle to a small perturbation, or the study of its spatial or temporal delays, may only reveal the values of the corresponding probability amplitudes ,or their combinations. These values cannot be taken to represent physical durations. If they are, one would need to deal with particles ”moving faster than light”, or spending in a potential a ”time, exceeding the duration of the experiment” and, frankly, nobody should want that
arXiv Preprint Number

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