Anomalous decoherence in a dissipative two-level system
Open accessAbstract
We study systematically the non-Markovian decoherence dynamics of a dissipative two-level system, i.e., the so-called spin-boson model. It is interesting to find that the decoherence tends to be inhibited with the increase of the coupling strength between the system and the reservoir, which is contrary to the common recognition that a stronger coupling always induces a severer decoherence. This is attributed to the occurrence of a quantum phase transition (QPT). The relationship between this QPT and conventional delocalized-localized QPT is also discussed. Our result suggests a useful control method to overcome the detrimental effects of the reservoir to the system.
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Our mechanism is applicable to a dissipative harmonic oscillator, whose dynamics is governed by the same bound-state mechanism as our TLS, and the spin-boson model, where the bound state has been found playing a leading role in the quantum phase transition.
“Our mechanism is applicable to a dissipative harmonic oscillator, whose dynamics is governed by the same bound-state mechanism as our TLS [45, 46], and the spinboson model, where the bound state has been found playing a leading role in the quantum phase transition of the model [39, 47].”
From Mechanism for quantum speedup in open quantum systems (2016) · cites this paper as [39]
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References 48 · Cited by 47
Research works printed but not linked: 3
- [29]H. Nakazato, M. Namiki, and S. Pascazio, Int. J. Mod. Phys. B 10, 247 (1996).
- [32]K. Rzazewski, M. Lewenstein, and J. H. Eberly, J. Phys. B 15, L661 (1982).
- [33]M. Lewenstein and K. Rzazewski, Phys. Rev. A 61, 022105 (2000).
- Authors
- Liu, H.-B., An, J.-H., Chen, C., Tong, Q.-J., Luo, H.-G., & Oh, C. H.
- Affiliations
- Centre for Quantum Technologies (SG)
- Lanzhou University (CN)
- Beijing Computational Science Research Center (CN)
- Venue
- Physical Review A
- Publisher
- American Physical Society (APS)
- Published
- 2013-05-31
- Volume
- 87
- Issue
- 5
- ISSN
- 0556-2791 (ISSN-L)
- 1050-2947
- 1094-1622
- OpenAlex
- W1994772872
- Cited by
- 47
- References
- 48
- Citations by year
- 2026: 7 · 2025: 2 · 2024: 1 · 2023: 1 · 2022: 1 · 2021: 2 · 2020: 2 · 2019: 2 · 2018: 5 · 2017: 3 · 2016: 5 · 2015: 4 · 2014: 9 · 2013: 3
- FWCI
- 3.60
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Licence
- Locations
- Physical Review A (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- National University of Singapore (submittedVersion)
- Lanzhou University Institutional Repository (submittedVersion)
- arXiv (Cornell University)
- Funders
- National Science Foundation
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum many-body systems
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Keywords
- non-Markovian decoherence, spin-boson model, quantum phase transitions, decoherence suppression, open quantum systems
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