dorsal/arxiv
View SchemaBloch-Zener oscillations
| Authors | B. M. Breid, D. Witthaut, H. J. Korsch |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0603093 |
| URL | https://arxiv.org/abs/quant-ph/0603093 |
| DOI | 10.1088/1367-2630/8/7/110 |
| Journal | New J. Phys. 8 (2006) 110 |
Abstract
It is well known that a particle in a periodic potential with an additional constant force performs Bloch oscillations. Modulating every second period of the potential, the original Bloch band splits into two subbands. The dynamics of quantum particles shows a coherent superposition of Bloch oscillations and Zener tunneling between the subbands, a Bloch-Zener oscillation. Such a system is modelled by a tight-binding Hamiltonian, a system of two minibands with an easily controllable gap. The dynamics of the system is investigated by using an algebraic ansatz leading to a differential equation of Whittaker-Hill type. It is shown that the parameters of the system can be tuned to generate a periodic reconstruction of the wave packet and thus of the occupation probability. As an application, the construction of a matter wave beam splitter and a Mach-Zehnder interferometer is briefly discussed.
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"abstract": "It is well known that a particle in a periodic potential with an additional\nconstant force performs Bloch oscillations. Modulating every second period of\nthe potential, the original Bloch band splits into two subbands. The dynamics\nof quantum particles shows a coherent superposition of Bloch oscillations and\nZener tunneling between the subbands, a Bloch-Zener oscillation. Such a system\nis modelled by a tight-binding Hamiltonian, a system of two minibands with an\neasily controllable gap. The dynamics of the system is investigated by using an\nalgebraic ansatz leading to a differential equation of Whittaker-Hill type. It\nis shown that the parameters of the system can be tuned to generate a periodic\nreconstruction of the wave packet and thus of the occupation probability. As an\napplication, the construction of a matter wave beam splitter and a Mach-Zehnder\ninterferometer is briefly discussed.",
"arxiv_id": "quant-ph/0603093",
"authors": [
"B. M. Breid",
"D. Witthaut",
"H. J. Korsch"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/1367-2630/8/7/110",
"journal_ref": "New J. Phys. 8 (2006) 110",
"title": "Bloch-Zener oscillations",
"url": "https://arxiv.org/abs/quant-ph/0603093"
},
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