The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.
Generation of three-qubit entangled states using superconducting phase qubits
Open accessAbstract
Entanglement is one of the key resources required for quantum computation, so the experimental creation and measurement of entangled states is of crucial importance for various physical implementations of quantum computers. In superconducting devices, two-qubit entangled states have been demonstrated and used to show violations of Bell’s inequality and to implement simple quantum algorithms. Unlike the two-qubit case, where all maximally entangled two-qubit states are equivalent up to local changes of basis, three qubits can be entangled in two fundamentally different ways. These are typified by the states |GHZ〉 = (|000〉 + |111〉)/ and |W〉 = (|001〉 + |010〉 + |100〉)/. Here we demonstrate the operation of three coupled superconducting phase qubits and use them to create and measure |GHZ〉 and |W〉 states. The states are fully characterized using quantum state tomography and are shown to satisfy entanglement witnesses, confirming that they are indeed examples of three-qubit entanglement and are not separable into mixtures of two-qubit entanglement.
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Cites
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Cited by
Brunner, N., Cavalcanti, D., Pironio, S., Scarani, V., & Wehner, S. (2014) · Reviews of Modern Physics · doi:10.1103/revmodphys.86.419 · Cited by 2,688
Superconducting quantum circuits at the surface code threshold for fault tolerance
Barends, R., Kelly, J., Megrant, A., Veitia, A., Sank, D., Jeffrey, E., White, T. C., Mutus, J., Fowler, A. G., Campbell, B., et al. (2014) · Nature · doi:10.1038/nature13171 · Cited by 1,733
Self-citationSuperconducting Qubits: Current State of Play
Kjaergaard, M., Schwartz, M. E., Braumüller, J., Krantz, P., Wang, J. I.-J., Gustavsson, S., & Oliver, W. D. (2020) · Annual Review of Condensed Matter Physics · doi:10.1146/annurev-conmatphys-031119-050605 · Cited by 1,544
Atomic physics and quantum optics using superconducting circuits
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Microwave photonics with superconducting quantum circuits
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Metadata
- Authors
- Neeley, M., Bialczak, R. C., Lenander, M., Lucero, E., Mariantoni, M., O’Connell, A. D., Sank, D., Wang, H., Weides, M., Wenner, J., Yin, Y., Yamamoto, T., Cleland, A. N., & Martinis, J. M.
- Venue
- Nature
- Published
- 2010-09
- Volume
- 467
- Issue
- 7315
- Pages
- 570-573
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W2117997131
- Cited by
- 423
- References
- 7
- FWCI
- 46.59
- Type
- journal article
- Language
- en
- Open access
- green
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- Neeley, M., Bialczak, R. C., Lenander, M., Lucero, E., Mariantoni, M., O’Connell, A. D., Sank, D., Wang, H., Weides, M., Wenner, J., Yin, Y., Yamamoto, T., Cleland, A. N., & Martinis, J. M. (2010). Generation of three-qubit entangled states using superconducting phase qubits. Nature. https://doi.org/10.1038/nature09418
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