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Controlled collisions for multi-particle entanglement of optically trapped atoms
Open accessAbstract
Entanglement lies at the heart of quantum mechanics, and in recent years has been identified as an essential resource for quantum information processing and computation. The experimentally challenging production of highly entangled multi-particle states is therefore important for investigating both fundamental physics and practical applications. Here we report the creation of highly entangled states of neutral atoms trapped in the periodic potential of an optical lattice. Controlled collisions between individual neighbouring atoms are used to realize an array of quantum gates, with massively parallel operation. We observe a coherent entangling-disentangling evolution in the many-body system, depending on the phase shift acquired during the collision between neighbouring atoms. Such dynamics are indicative of highly entangled many-body states; moreover, these are formed in a single operational step, independent of the size of the system.
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“Tuning the polarization of the trapping lasers can induce entangling interactions 22,23 between neighboring atoms across the array and create a cluster state across the whole lattice 20,24,25 .”
From Measurement-based quantum computation (2009) · cites this paper as [25]
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“require such a quantification to be versatile enough to deal with the states encountered in actual experiments, which are in general mixed and typically involve several particles.”
From Measures and dynamics of entangled states (2005) · cites this paper as [8]
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“In general, perfect screening is impossible, but experimental techniques are sufficiently advanced [5,8,74] to preserve entanglement over appreciable periods of time.”
From Measures and dynamics of entangled states (2005) · cites this paper as [8]
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Flagged first, then by citations
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Cited by
Sorted by citations
Many-body physics with ultracold gases
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Dynamics of Bose-Einstein condensates in optical lattices
Morsch, O., & Oberthaler, M. K. (2006) · Reviews of Modern Physics · doi:10.1103/revmodphys.78.179 · Cited by 1,642
Metadata
- Authors
- Mandel, O., Greiner, M., Widera, A., Rom, T., Hänsch, T. W., & Bloch, I.
- Affiliations
- Ludwig-Maximilians-Universität München (DE)
- Max Planck Institute of Quantum Optics (DE)
- Corresponding author
- Bloch, Immanuel
- Venue
- Nature
- Published
- 2003-10
- Volume
- 425
- Issue
- 6961
- Pages
- 937-940
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W2018098207
- Cited by
- 789
- References
- 28
- Citations by year
- 2026: 12 · 2025: 11 · 2024: 14 · 2023: 21 · 2022: 21 · 2021: 14 · 2020: 25 · 2019: 24 · 2018: 23 · 2017: 28 · 2016: 31 · 2015: 25 · 2014: 32 · 2013: 22 · 2012: 30
- FWCI
- 32.85
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature (publishedVersion)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- Max Planck Institute for Plasma Physics (submittedVersion)
- MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Cold Atom Physics and Bose-Einstein Condensates
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum many-body systems
- Keywords
- multi-particle entanglement, optical lattices, optically trapped atoms, quantum gates, quantum many-body states, neutral atoms, phase shift, quantum information processing
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