Aufsatz
Quantum optimal control of the dissipative production of a maximally entangled state
Zusammenfassung
Entanglement generation can be robust against certain types of noise in approaches that deliberately incorporate dissipation into the system dynamics. The presence of additional dissipation channels may, however, limit fidelity and speed of the process. Here we show how quantum optimal control techniques can be used to both speed up the entanglement generation and increase the fidelity in a realistic setup, whilst respecting typical experimental limitations. For the example of entangling two trapped ion qubits (Lin et al 2013 Nature 504 415), we find an improved fidelity by simply optimizing the polarization of the laser beams utilized in the experiment. More significantly, an alternate combination of transitions between internal states of the ions, when combined with optimized polarization, enables faster entanglement and decreases the error by an order of magnitude.
Zitierform
In: New Journal of Physics 2018 / 20 (2018-12-14) , S. 123010 ; ISSN 1367-2630Förderhinweis
Gefördert durch den Publikationsfonds der Universität KasselZitieren
@article{doi:10.17170/kobra-20190204147,
author={Horn, Karl P. and Reiter, Florentin and Lin, Yiheng and Leibfried, Dietrich and Koch, Christiane P.},
title={Quantum optimal control of the dissipative production of a maximally entangled state},
journal={New Journal of Physics},
year={2018}
}
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2019-02-05T12:57:38Z 2019-02-05T12:57:38Z 2018-12-14 doi:10.17170/kobra-20190204147 http://hdl.handle.net/123456789/11062 Gefördert durch den Publikationsfonds der Universität Kassel eng Urheberrechtlich geschützt https://rightsstatements.org/page/InC/1.0/ quantum optimal control entanglement trapped ions quantum reservoir engineering open quantum systems 530 Quantum optimal control of the dissipative production of a maximally entangled state Aufsatz Entanglement generation can be robust against certain types of noise in approaches that deliberately incorporate dissipation into the system dynamics. The presence of additional dissipation channels may, however, limit fidelity and speed of the process. Here we show how quantum optimal control techniques can be used to both speed up the entanglement generation and increase the fidelity in a realistic setup, whilst respecting typical experimental limitations. For the example of entangling two trapped ion qubits (Lin et al 2013 Nature 504 415), we find an improved fidelity by simply optimizing the polarization of the laser beams utilized in the experiment. More significantly, an alternate combination of transitions between internal states of the ions, when combined with optimized polarization, enables faster entanglement and decreases the error by an order of magnitude. open access Horn, Karl P. Reiter, Florentin Lin, Yiheng Leibfried, Dietrich Koch, Christiane P. doi:10.1088/1367-2630/aaf360 publishedVersion ISSN 1367-2630 20 New Journal of Physics 123010 2018
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:Urheberrechtlich geschützt