dorsal/arxiv
View SchemaAharonov-Bohm interference in the presence of metallic mesoscopic cylinders
| Authors | Silviu Olariu |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9702024 |
| URL | https://arxiv.org/abs/quant-ph/9702024 |
| DOI | 10.1103/PhysRevA.55.94 |
Abstract
This work studies the interference of electrons in the presence of a line of magnetic flux surrounded by a normal-conducting mesoscopic cylinder at low temperature. It is found that, while there is a supplementary phase contribution from each electron of the mesoscopic cylinder, the sum of these individual supplementary phases is equal to zero, so that the presence of a normal-conducting mesoscopic ring at low temperature does not change the Aharonov-Bohm interference pattern of the incident electron. It is shown that it is not possible to ascertain by experimental observation that the shielding electrons have responded to the field of an incident electron, and at the same time to preserve the interference pattern of the incident electron. It is also shown that the measuring of the transient magnetic field in the region between the two paths of an electron interference experiment with an accuracy at least equal to the magnetic field of the incident electron generates a phase uncertainty which destroys the interference pattern.
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"abstract": "This work studies the interference of electrons in the presence of a line of\nmagnetic flux surrounded by a normal-conducting mesoscopic cylinder at low\ntemperature. It is found that, while there is a supplementary phase\ncontribution from each electron of the mesoscopic cylinder, the sum of these\nindividual supplementary phases is equal to zero, so that the presence of a\nnormal-conducting mesoscopic ring at low temperature does not change the\nAharonov-Bohm interference pattern of the incident electron. It is shown that\nit is not possible to ascertain by experimental observation that the shielding\nelectrons have responded to the field of an incident electron, and at the same\ntime to preserve the interference pattern of the incident electron. It is also\nshown that the measuring of the transient magnetic field in the region between\nthe two paths of an electron interference experiment with an accuracy at least\nequal to the magnetic field of the incident electron generates a phase\nuncertainty which destroys the interference pattern.",
"arxiv_id": "quant-ph/9702024",
"authors": [
"Silviu Olariu"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.55.94",
"title": "Aharonov-Bohm interference in the presence of metallic mesoscopic cylinders",
"url": "https://arxiv.org/abs/quant-ph/9702024"
},
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