dorsal/arxiv
View SchemaLoschmidt echo in the Bose-Hubbard model: turning back time in an optical lattice
| Authors | Fernando M. Cucchietti |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0609202 |
| URL | https://arxiv.org/abs/quant-ph/0609202 |
| DOI | 10.1364/JOSAB.27.000A30 |
| Journal | J. Opt. Soc. Am. B 27, A30-A35 (2010) |
Abstract
I show how to perform a Loschmidt echo (time reversal) in the Bose-Hubbard model implemented with cold bosonic atoms in an optical lattice. The echo is obtained by applying a linear phase imprint on the lattice and a change in magnetic field to tune the boson-boson scattering length through a Feshbach resonance. I discuss how the echo can measure the fidelity of the quantum simulation, the intensity of an external potential (e.g. gravity), or the critical point of the superfluid-insulator quantum phase transition.
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"abstract": "I show how to perform a Loschmidt echo (time reversal) in the Bose-Hubbard\nmodel implemented with cold bosonic atoms in an optical lattice. The echo is\nobtained by applying a linear phase imprint on the lattice and a change in\nmagnetic field to tune the boson-boson scattering length through a Feshbach\nresonance. I discuss how the echo can measure the fidelity of the quantum\nsimulation, the intensity of an external potential (e.g. gravity), or the\ncritical point of the superfluid-insulator quantum phase transition.",
"arxiv_id": "quant-ph/0609202",
"authors": [
"Fernando M. Cucchietti"
],
"categories": [
"quant-ph",
"cond-mat.other",
"physics.atom-ph"
],
"doi": "10.1364/JOSAB.27.000A30",
"journal_ref": "J. Opt. Soc. Am. B 27, A30-A35 (2010)",
"title": "Loschmidt echo in the Bose-Hubbard model: turning back time in an optical lattice",
"url": "https://arxiv.org/abs/quant-ph/0609202"
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