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- Title
Minimal evolution time and quantum speed limit of non-Markovian open systems.
- Authors
Meng, Xiangyi; Wu, Chengjun; Guo, Hong
- Abstract
We derive a sharp bound as the quantum speed limit (QSL) for the minimal evolution time of quantum open systems in the non-Markovian strong-coupling regime with initial mixed states by considering the effects of both renormalized Hamiltonian and dissipator. For a non-Markovian quantum open system, the possible evolution time between two arbitrary states is not unique, among the set of which we find that the minimal one and its QSL can decrease more steeply by adjusting the coupling strength of the dissipator, which thus provides potential improvements of efficiency in many quantum physics and quantum information areas.
- Subjects
QUANTUM theory; HEAT sinks (Electronics); HAMILTON'S equations; QUANTUM operators; OPEN systems (Physics)
- Publication
Scientific Reports, 2015, p16357
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/srep16357