Naslov
The time distribution of quantum events

Autori
Jurman, Danijel ; Nikolić, Hrvoje

Izvornik
Physics letters. A (0375-9601) 396 (2021); 127247, 7

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Time distribution ; Quantum event ; Projection

Sažetak
We develop a general theory of the time distribution of quantum events, applicable to a large class of problems such as arrival time, dwell time and tunneling time. A stopwatch ticks until an awaited event is detected, at which time the stopwatch stops. The awaited event is represented by a projection operator π, while the ideal stopwatch is modeled as a series of projective measurements at which the quantum state gets projected with either π¯=1−π (when the awaited event does not happen) or π (when the awaited event eventually happens). In the approximation in which the time δt between the subsequent measurements is sufficiently small (but not zero!), we find a fairly simple general formula for the time distribution P(t), representing the probability density that the awaited event will be detected at time t.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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