dorsal/arxiv
View SchemaTowards a time-reversal mirror for quantum systems
| Authors | Horacio M. Pastawski, Ernesto P. Danieli, Hernan L. Calvo, Luis E. F. Foa Torres |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0403130 |
| URL | https://arxiv.org/abs/quant-ph/0403130 |
| DOI | 10.1209/0295-5075/77/40001 |
| Journal | EPL 77, 40001 (2007) |
Abstract
The reversion of the time evolution of a quantum state can be achieved by changing the sign of the Hamiltonian as in the polarization echo experiment in NMR. In this work we describe an alternative mechanism inspired by the acoustic time reversal mirror. By solving the inverse time problem in a discrete space we develop a new procedure, the perfect inverse filter. It achieves the exact time reversion in a given region by reinjecting a prescribed wave function at its periphery.
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"abstract": "The reversion of the time evolution of a quantum state can be achieved by\nchanging the sign of the Hamiltonian as in the polarization echo experiment in\nNMR. In this work we describe an alternative mechanism inspired by the acoustic\ntime reversal mirror. By solving the inverse time problem in a discrete space\nwe develop a new procedure, the perfect inverse filter. It achieves the exact\ntime reversion in a given region by reinjecting a prescribed wave function at\nits periphery.",
"arxiv_id": "quant-ph/0403130",
"authors": [
"Horacio M. Pastawski",
"Ernesto P. Danieli",
"Hernan L. Calvo",
"Luis E. F. Foa Torres"
],
"categories": [
"quant-ph",
"cond-mat.mes-hall"
],
"doi": "10.1209/0295-5075/77/40001",
"journal_ref": "EPL 77, 40001 (2007)",
"title": "Towards a time-reversal mirror for quantum systems",
"url": "https://arxiv.org/abs/quant-ph/0403130"
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