Journal
NATURE PHYSICS
Volume 9, Issue 3, Pages 168-173Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nphys2519
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Funding
- Alexander von Humboldt Foundation
- EU Integrating Project Q-ESSENCE
- EU STREP PICC
- DIAMANT
- BMBF Verbundprojekt QuOReP
- DFG [FOR 1482, FOR 1493, SFB/TR 21]
- DARPA
- Marie-Curie Intra-European Fellowship [FP7]
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Strongly correlated quantum many-body systems may exhibit exotic phases, such as spin liquids and supersolids. Although their numerical simulation becomes intractable for as few as 50 particles, quantum simulators offer a route to overcome this computational barrier. However, proposed realizations either require stringent conditions such as low temperature/ultra-high vacuum, or are extremely hard to scale. Here, we propose a new solid-state architecture for a scalable quantum simulator that consists of strongly interacting nuclear spins attached to the diamond surface. Initialization, control and read-out of this quantum simulator can be accomplished with nitrogen-vacancy centers implanted in diamond. The system can be engineered to simulate a wide variety of strongly correlated spin models. Owing to the superior coherence time of nuclear spins and nitrogen-vacancy centers in diamond, our proposal offers new opportunities towards large-scale quantum simulation at ambient conditions of temperature and pressure.
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