Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | eaaw9268 |
| Fachzeitschrift | Science advances |
| Jahrgang | 6 |
| Ausgabenummer | 10 |
| Publikationsstatus | Veröffentlicht - 6 März 2020 |
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.
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in: Science advances, Jahrgang 6, Nr. 10, eaaw9268, 06.03.2020.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Initialization of quantum simulators by sympathetic cooling
AU - Raghunandan, Meghana
AU - Wolf, Fabian
AU - Ospelkaus, Christian
AU - Schmidt, Piet O
AU - Weimer, Hendrik
N1 - Funding information: This work was funded by the Volkswagen Foundation and the DFG within SFB 1227 (DQ-mat, projects A01, A04, and B05).
PY - 2020/3/6
Y1 - 2020/3/6
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85081974697&partnerID=8YFLogxK
U2 - 10.1126/sciadv.aaw9268
DO - 10.1126/sciadv.aaw9268
M3 - Article
C2 - 32181335
VL - 6
JO - Science advances
JF - Science advances
SN - 2375-2548
IS - 10
M1 - eaaw9268
ER -