Entangling two distant oscillators with a quantum reservoir
Open accessAbstract
The generation of entanglement between two oscillators that interact via a common reservoir is theoretically studied. The reservoir is modeled by a one-dimensional harmonic crystal initially in thermal equilibrium. Starting from a separable state, the oscillators can become entangled after a transient time, that is of the order of the thermalization time scale. This behaviour is observed at finite temperature even when the oscillators are at a distance significantly larger than the crystal's interparticle spacing. The underlying physical mechanisms can be explained by the dynamical properties of the collective variables of the two oscillators which may decouple from or be squeezed by the reservoir. Our predictions can be tested with an ion chain in a linear Paul trap.
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Purely Markovian dephasing at the same effective rate leads the dimer to a maximally mixed separable steady state with no long-term entanglement.
“whereas purely Markovian dynamics governed by Lindblad master equations lead to separable steady states.”
From Non-Markovianity-Assisted Steady State Entanglement (2012) · cites this paper as [8]
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Non-Markovianity-Assisted Steady State Entanglement
Huelga, S. F., Rivas, Á., & Plenio, M. B. (2012) · Physical Review Letters · doi:10.1103/physrevlett.108.160402 · Cited by 203 · see citing works
- Authors
- Wolf, A., De Chiara, G., Kajari, E., Lutz, E., & Morigi, G.
- Affiliations
- Universität Ulm (DE)
- University of Augsburg (DE)
- Universitat Autònoma de Barcelona (ES)
- ORCID
- Venue
- EPL (Europhysics Letters)
- Publisher
- IOP Publishing
- Published
- 2011-09-01
- Volume
- 95
- Issue
- 6
- Pages
- 60008
- ISSN
- 0295-5075 (ISSN-L)
- 1286-4854
- OpenAlex
- W1987512103
- Cited by
- 35
- References
- 43
- Citations by year
- 2026: 1 · 2023: 1 · 2022: 2 · 2020: 2 · 2019: 2 · 2018: 3 · 2017: 1 · 2016: 3 · 2015: 2 · 2014: 5 · 2013: 9 · 2012: 4
- FWCI
- 3.12
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Europhysics Letters (EPL) (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- Springer Link (Chiba Institute of Technology) (submittedVersion)
- Research Portal (Queen's University Belfast) (submittedVersion)
- arXiv (Cornell University)
- Funders
- European Commission
- Deutsche Forschungsgemeinschaft
- Generalitat de Catalunya (00343)
- Ministerio de Ciencia e Innovación
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Mechanical and Optical Resonators
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
- Keywords
- entanglement generation, coupled oscillators, thermalization, finite temperature, collective variables, squeezing, ion chains, linear Paul trap, open quantum systems
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