dorsal/arxiv
View SchemaQuantum time-of-flight measurements: kick clock versus continuous clock
| Authors | D. Alonso, R. Sala Mayato, J. G. Muga |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0205136 |
| URL | https://arxiv.org/abs/quant-ph/0205136 |
| DOI | 10.1103/PhysRevA.67.032105 |
Abstract
The measurement of time durations or instants of ocurrence of events has been frequently modelled ``operationally'' by coupling the system of interest to a ``clock''. According to several of these models the operational approach is limited at low energies because the perturbation of the clock does not allow to reproduce accurately the corresponding ideal time quantity, defined for the system in isolation. We show that, for a time-of-flight measurement model that can be set to measure dwell or arrival times, these limitations may be overcome by extending the range of energies where the clock works properly using pulsed couplings rather than continuous ones.
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"abstract": "The measurement of time durations or instants of ocurrence of events has been\nfrequently modelled ``operationally\u0027\u0027 by coupling the system of interest to a\n``clock\u0027\u0027. According to several of these models the operational approach is\nlimited at low energies because the perturbation of the clock does not allow to\nreproduce accurately the corresponding ideal time quantity, defined for the\nsystem in isolation. We show that, for a time-of-flight measurement model that\ncan be set to measure dwell or arrival times, these limitations may be overcome\nby extending the range of energies where the clock works properly using pulsed\ncouplings rather than continuous ones.",
"arxiv_id": "quant-ph/0205136",
"authors": [
"D. Alonso",
"R. Sala Mayato",
"J. G. Muga"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.67.032105",
"title": "Quantum time-of-flight measurements: kick clock versus continuous clock",
"url": "https://arxiv.org/abs/quant-ph/0205136"
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