The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.
Dissipative production of a maximally entangled steady state of two quantum bits
Open accessAbstract
Entangled states are a key resource in fundamental quantum physics, quantum cryptography and quantum computation. Introduction of controlled unitary processes—quantum gates—to a quantum system has so far been the most widely used method to create entanglement deterministically. These processes require high-fidelity state preparation and minimization of the decoherence that inevitably arises from coupling between the system and the environment, and imperfect control of the system parameters. Here we combine unitary processes with engineered dissipation to deterministically produce and stabilize an approximate Bell state of two trapped-ion quantum bits (qubits), independent of their initial states. Compared with previous studies that involved dissipative entanglement of atomic ensembles or the application of sequences of multiple time-dependent gates to trapped ions, we implement our combined process using trapped-ion qubits in a continuous time-independent fashion (analogous to optical pumping of atomic states). By continuously driving the system towards the steady state, entanglement is stabilized even in the presence of experimental noise and decoherence. Our demonstration of an entangled steady state of two qubits represents a step towards dissipative state engineering, dissipative quantum computation and dissipative phase transitions. Following this approach, engineered coupling to the environment may be applied to a broad range of experimental systems to achieve desired quantum dynamics or steady states. Indeed, concurrently with this work, an entangled steady state of two superconducting qubits was demonstrated using dissipation.
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Cites
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Self-citationQuantum computation and quantum-state engineering driven by dissipation
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Cited by
Trapped-ion quantum computing: Progress and challenges
Bruzewicz, C. D., Chiaverini, J., McConnell, R., & Sage, J. M. (2019) · Applied Physics Reviews · doi:10.1063/1.5088164 · Cited by 1,483
Programmable Quantum Simulations of Spin Systems with Trapped Ions
Monroe, C., Campbell, W. C., Duan, L. M., Gong, Z. X., Gorshkov, A. V., Hess, P., Islam, R., Kim, K., Linke, N., Pagano, G., et al. (2019) · arXiv · doi:10.48550/arxiv.1912.07845 · Cited by 806
Programmable quantum simulations of spin systems with trapped ions
Monroe, C., Campbell, W. C., Duan, L.-M., Gong, Z.-X., Gorshkov, A. V., Hess, P. W., Islam, R., Kim, K., Linke, N. M., Pagano, G., et al. (2021) · Reviews of Modern Physics · doi:10.1103/revmodphys.93.025001 · Cited by 802
Description of quantum coherence in thermodynamic processes requires constraints beyond free energy
Lostaglio, M., Jennings, D., & Rudolph, T. (2015) · Nature Communications · doi:10.1038/ncomms7383 · Cited by 727
Quantum computing with atomic qubits and Rydberg interactions: progress and challenges
Saffman, M. (2016) · Journal of Physics B: Atomic, Molecular and Optical Physics · doi:10.1088/0953-4075/49/20/202001 · Cited by 687
Metadata
- Authors
- Lin, Y., Gaebler, J. P., Reiter, F., Tan, T. R., Bowler, R., Sørensen, A. S., Leibfried, D., & Wineland, D. J.
- Venue
- Nature
- Published
- 2013-11-24
- Volume
- 504
- Issue
- 7480
- Pages
- 415-418
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W2153790436
- Cited by
- 408
- References
- 38
- FWCI
- 40.86
- Type
- journal article
- Language
- en
- Open access
- green
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- Lin, Y., Gaebler, J. P., Reiter, F., Tan, T. R., Bowler, R., Sørensen, A. S., Leibfried, D., & Wineland, D. J. (2013). Dissipative production of a maximally entangled steady state of two quantum bits. Nature. https://doi.org/10.1038/nature12801
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