Keeping a Quantum Bit Alive by Optimized π -Pulse Sequences
Open accessAbstract
A general strategy to maintain the coherence of a quantum bit is proposed. The analytical result is derived rigorously including all memory and backaction effects. It is based on an optimized pi-pulse sequence for dynamic decoupling extending the Carr-Purcell-Meiboom-Gill cycle. The optimized sequence is very efficient, in particular, for strong couplings to the environment.
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Further characterization of magnetic field noise by applying different orders of the Uhrig dynamical decoupling sequence yielded extracted coherence times of 3.2(1) ms, 5.8(3) ms and 8.0(7) ms for orders 1, 3 and 5, respectively.
“Further characterization of the magnetic field noise is performed by applying different orders of the Uhrig dynamical decoupling sequence40,41, with the resulting extracted coherence time from the measurements being 3.2(1) ms, 5.8(3) ms and 8.0(7) ms for orders 1, 3 and 5, respectively.”
From Penning micro-trap for quantum computing (2024) · cites this paper as [40]
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- Authors
- Uhrig, G. S.
- Affiliations
- TU Dortmund University (DE)
- Corresponding author
- Uhrig, Götz S.
- ORCID
- Uhrig, Götz S.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2007-03-09
- Volume
- 98
- Issue
- 10
- Pages
- 100504-100504
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2023564955
- Cited by
- 716
- References
- 2
- Citations by year
- 2026: 32 · 2025: 52 · 2024: 34 · 2023: 31 · 2022: 29 · 2021: 35 · 2020: 23 · 2019: 39 · 2018: 30 · 2017: 31 · 2016: 44 · 2015: 38 · 2014: 42 · 2013: 46 · 2012: 57
- FWCI
- 37.88
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Computing Algorithms and Architecture
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
- Keywords
- dynamical decoupling, Carr-Purcell-Meiboom-Gill sequence, memory effects, back-action, decoherence suppression
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