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Deterministic Entanglement of Photons in Two Superconducting Microwave Resonators
Open accessAbstract
Quantum entanglement, one of the defining features of quantum mechanics, has been demonstrated in a variety of nonlinear spinlike systems. Quantum entanglement in linear systems has proven significantly more challenging, as the intrinsic energy level degeneracy associated with linearity makes quantum control more difficult. Here we demonstrate the quantum entanglement of photon states in two independent linear microwave resonators, creating N-photon NOON states (entangled states |N0> + |0N>) as a benchmark demonstration. We use a superconducting quantum circuit that includes Josephson qubits to control and measure the two resonators, and we completely characterize the entangled states with bipartite Wigner tomography. These results demonstrate a significant advance in the quantum control of linear resonators in superconducting circuits.
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Cites
Variational characterizations of separability and entanglement of formation
Audenaert, K., Verstraete, F., & De Moor, B. (2001) · Physical Review A · doi:10.1103/physreva.64.052304 · Cited by 176
Cited by
Carusotto, I., & Ciuti, C. (2013) · Reviews of Modern Physics · doi:10.1103/revmodphys.85.299 · Cited by 1,996
Atomic physics and quantum optics using superconducting circuits
You, J. Q., & Nori, F. (2011) · Nature · doi:10.1038/nature10122 · Cited by 1,311
Microwave photonics with superconducting quantum circuits
Gu, X., Kockum, A. F., Miranowicz, A., Liu, Y.-X., & Nori, F. (2017) · Physics Reports · doi:10.1016/j.physrep.2017.10.002 · Cited by 1,307
Universal Gate for Fixed-Frequency Qubits via a Tunable Bus
McKay, D. C., Filipp, S., Mezzacapo, A., Magesan, E., Chow, J. M., & Gambetta, J. M. (2016) · Physical Review Applied · doi:10.1103/physrevapplied.6.064007 · Cited by 321
Low-disorder microwave cavity lattices for quantum simulation with photons
Underwood, D. L., Shanks, W. E., Koch, J., & Houck, A. A. (2012) · Physical Review A · doi:10.1103/physreva.86.023837 · Cited by 208
Metadata
- Authors
- Wang, H., Mariantoni, M., Bialczak, R. C., Lenander, M., Lucero, E., Neeley, M., O’Connell, A. D., Sank, D., Weides, M., Wenner, J., Yamamoto, T., Yin, Y., Zhao, J., Martinis, J. M., & Cleland, A. N.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2011-02-07
- Volume
- 106
- Issue
- 6
- Pages
- 060401-060401
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2002746694
- Cited by
- 201
- References
- 1
- FWCI
- 20.40
- Type
- journal article
- Language
- en
- Open access
- green
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- Wang, H., Mariantoni, M., Bialczak, R. C., Lenander, M., Lucero, E., Neeley, M., O’Connell, A. D., Sank, D., Weides, M., Wenner, J., Yamamoto, T., Yin, Y., Zhao, J., Martinis, J. M., & Cleland, A. N. (2011). Deterministic Entanglement of Photons in Two Superconducting Microwave Resonators. Physical Review Letters. https://doi.org/10.1103/physrevlett.106.060401
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