The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Room-temperature entanglement between single defect spins in diamond
Open accessAbstract
Engineered defects in the diamond lattice hold promise for the storage and manipulation of quantum information. Entanglement between the electron and nuclear spins of two such defects is demonstrated at room temperature. Entanglement is the central yet fleeting phenomenon of quantum physics. Once being considered a peculiar counter-intuitive property of quantum theory1, it has developed into the most central element of quantum technology. Consequently, there have been a number of experimental demonstrations of entanglement between photons2, atoms3, ions4 and solid-state systems such as spins or quantum dots5,6,7, superconducting circuits8,9 and macroscopic diamond10. Here we experimentally demonstrate entanglement between two engineered single solid-state spin quantum bits (qubits) at ambient conditions. Photon emission of defect pairs reveals ground-state spin correlation. Entanglement (fidelity = 0.67±0.04) is proved by quantum state tomography. Moreover, the lifetime of electron spin entanglement is extended to milliseconds by entanglement swapping to nuclear spins. The experiments mark an important step towards a scalable room-temperature quantum device being of potential use in quantum information processing as well as metrology.
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Cites
Quantum Computation and Quantum Information
Nielsen, M. A., Chuang, I., & Grover, L. K. (2002) · American Journal of Physics · doi:10.1119/1.1463744 · Cited by 21,895
Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?
Einstein, A., Podolsky, B., & Rosen, N. (1935) · Physical Review · doi:10.1103/physrev.47.777 · Cited by 16,654
Ladd, T. D., Jelezko, F., Laflamme, R., Nakamura, Y., Monroe, C., & O’Brien, J. L. (2010) · Nature · doi:10.1038/nature08812 · Cited by 3,592
Self-citationHeralded entanglement between solid-state qubits separated by three metres
Bernien, H., Hensen, B., Pfaff, W., Koolstra, G., Blok, M. S., Robledo, L., Taminiau, T. H., Markham, M., Twitchen, D. J., Childress, L., et al. (2013) · Nature · doi:10.1038/nature12016 · Cited by 1,187
An elementary quantum network of single atoms in optical cavities
Ritter, S., Nölleke, C., Hahn, C., Reiserer, A., Neuzner, A., Uphoff, M., Mücke, M., Figueroa, E., Bochmann, J., & Rempe, G. (2012) · Nature · doi:10.1038/nature11023 · Cited by 894
Cited by
Heralded entanglement between solid-state qubits separated by three metres
Bernien, H., Hensen, B., Pfaff, W., Koolstra, G., Blok, M. S., Robledo, L., Taminiau, T. H., Markham, M., Twitchen, D. J., Childress, L., et al. (2013) · Nature · doi:10.1038/nature12016 · Cited by 1,187
A Survey on quantum computing technology
Gyongyosi, L., & Imre, S. (2019) · Computer Science Review · doi:10.1016/j.cosrev.2018.11.002 · Cited by 646
A ten-qubit solid-state spin register with quantum memory up to one minute
Bradley, C. E., Randall, J., Abobeih, M. H., Berrevoets, R. C., Degen, M. J., Bakker, M. A., Markham, M., Twitchen, D. J., & Taminiau, T. H. (2019) · Physical Review X · doi:10.1103/physrevx.9.031045 · Cited by 546
Nonlinear optical signals and spectroscopy with quantum light
Dorfman, K. E., Schlawin, F., & Mukamel, S. (2016) · Reviews of Modern Physics · doi:10.1103/revmodphys.88.045008 · Cited by 361
Aharonovich, I., & Neu, E. (2014) · Advanced Optical Materials · doi:10.1002/adom.201400189 · Cited by 359
Metadata
- Authors
- Dolde, F., Jakobi, I., Naydenov, B., Zhao, N., Pezzagna, S., Trautmann, C., Meijer, J., Neumann, P., Jelezko, F., & Wrachtrup, J.
- Venue
- Nature Physics
- Published
- 2013-02-10
- Volume
- 9
- Issue
- 3
- Pages
- 139-143
- ISSN
- 1745-2473 (ISSN-L)
- 1745-2481
- OpenAlex
- W2030568927
- Cited by
- 467
- References
- 5
- FWCI
- 19.98
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Dolde, F., Jakobi, I., Naydenov, B., Zhao, N., Pezzagna, S., Trautmann, C., Meijer, J., Neumann, P., Jelezko, F., & Wrachtrup, J. (2013). Room-temperature entanglement between single defect spins in diamond. Nature Physics. https://doi.org/10.1038/nphys2545
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