Zusammenfassung: | |
In a recent experiment, Barreiro et al (2011 Nature 470 486) demonstrated the fundamental building blocks of an open-system quantum simulator with trapped ions. Using up to five ions, dynamics were realized by sequences that combined single- and multi-qubit entangling gate operations with optical pumping. This enabled the implementation of both coherent many-body dynamics and dissipative processes by controlling the coupling of the system to an artificial, suitably tailored environment. This engineering was illustrated by the dissipative preparation of entangled two- and four-qubit states, the simulation of coherent four-body spin interactions and the quantum non-demolition measurement of a multi-qubit stabilizer operator. In this paper, we present the theoretical framework of this gate-based ('digital') simulation approach for open-system dynamics with trapped ions. In addition, we discuss how within this simulation approach, minimal instances of spin models of interest in the context © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
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Lizenzbestimmungen: | CC BY-NC-SA 3.0 Unported - https://creativecommons.org/licenses/by-nc-sa/3.0/ |
Publikationstyp: | Article |
Publikationsstatus: | publishedVersion |
Erstveröffentlichung: | 2011 |
Schlagwörter (englisch): | Dissipative process, Fundamental building blocks, Gate operation, Many-body, Many-body interactions, Open quantum systems, Quantum nondemolition measurements, Quantum simulators, Simulation approach, Spin interaction, Spin models, Theoretical framework, Trapped ion, Computer simulation, Ions, Optical pumping, Pumps, Quantum electronics, Quantum optics, Quantum entanglement |
Fachliche Zuordnung (DDC): | 530 | Physik |
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