dorsal/arxiv
View SchemaDephasing in matter-wave interferometry
| Authors | Fernando C. Lombardo, Paula I. Villar |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0511035 |
| URL | https://arxiv.org/abs/quant-ph/0511035 |
| DOI | 10.1088/0305-4470/39/21/S48 |
| Journal | J.Phys. A39 (2006) 6509-6516 |
Abstract
We review different attempts to show the decoherence process in double-slit-like experiments both for charged particles (electrons) and neutral particles with permanent dipole moments. Interference is studied when electrons or atomic systems are coupled to classical or quantum electromagnetic fields. The interaction between the particles and time-dependent fields induces a time-varying Aharonov phase. Averaging over the phase generates a suppression of fringe visibility in the interference pattern. We show that, for suitable experimental conditions, the loss of contrast for dipoles can be almost as large as the corresponding one for coherent electrons and therefore, be observed. We analyze different trajectories in order to show the dependence of the decoherence factor with the velocity of the particles.
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"abstract": "We review different attempts to show the decoherence process in\ndouble-slit-like experiments both for charged particles (electrons) and neutral\nparticles with permanent dipole moments. Interference is studied when electrons\nor atomic systems are coupled to classical or quantum electromagnetic fields.\nThe interaction between the particles and time-dependent fields induces a\ntime-varying Aharonov phase. Averaging over the phase generates a suppression\nof fringe visibility in the interference pattern. We show that, for suitable\nexperimental conditions, the loss of contrast for dipoles can be almost as\nlarge as the corresponding one for coherent electrons and therefore, be\nobserved. We analyze different trajectories in order to show the dependence of\nthe decoherence factor with the velocity of the particles.",
"arxiv_id": "quant-ph/0511035",
"authors": [
"Fernando C. Lombardo",
"Paula I. Villar"
],
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"hep-ph"
],
"doi": "10.1088/0305-4470/39/21/S48",
"journal_ref": "J.Phys. A39 (2006) 6509-6516",
"title": "Dephasing in matter-wave interferometry",
"url": "https://arxiv.org/abs/quant-ph/0511035"
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