Initialization of quantum simulators by sympathetic cooling

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Raghunandan, M.; Wolf, F.; Ospelkaus, C.; Schmidt, P.O.; Weimer, H.: Initialization of quantum simulators by sympathetic cooling. In: Science Advances 6 (2020), eaaw9268. DOI: https://doi.org/10.1126/sciadv.aaw9268

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Sum total of downloads: 48




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Abstract: 
Simulating computationally intractable many-body problems on a quantum simulator holds great potential to deliver insights into physical, chemical, and biological systems. While the implementation of Hamiltonian dynamics within a quantum simulator has already been demonstrated in many experiments, the problem of initialization of quantum simulators to a suitable quantum state has hitherto remained mostly unsolved. Here, we show that already a single dissipatively driven auxiliary particle can efficiently prepare the quantum simulator in a low-energy state of largely arbitrary Hamiltonians. We demonstrate the scalability of our approach and show that it is robust against unwanted sources of decoherence. While our initialization protocol is largely independent of the physical realization of the simulation device, we provide an implementation example for a trapped ion quantum simulator.
License of this version: CC BY 4.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2020
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 26 54.17%
2 image of flag of United States United States 9 18.75%
3 image of flag of China China 4 8.33%
4 image of flag of Ukraine Ukraine 2 4.17%
5 image of flag of Korea, Republic of Korea, Republic of 2 4.17%
6 image of flag of Canada Canada 2 4.17%
7 image of flag of Netherlands Netherlands 1 2.08%
8 image of flag of United Kingdom United Kingdom 1 2.08%
9 image of flag of Austria Austria 1 2.08%

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