Compare Papers
Paper 1
Achieve higher efficiency at maximum power with finite-time quantum Otto cycle
Jin-Fu Chen, Chang-Pu Sun, Hui Dong
- Year
- 2019
- Journal
- Physical Review E
- DOI
- 10.1103/physreve.100.062140
- arXiv
- -
No abstract.
Open paperPaper 2
Left handness in a four-level atomic system
Shuncai Zhao, Zhengdong Liu
- Year
- 2026
- Journal
- arXiv preprint
- DOI
- arXiv:2605.00077
- arXiv
- 2605.00077
A scheme is proposed for realizing simultaneous negative permittivity and negative permeability based on quantum coherence in a four-level dense atomic system here.Under some parametric conditions the system shows that simultaneous negative permittivity and negative permeability(i.e.Left handness) can be achieved in a wider frequency band because of quantum coherence.And the novelty properties of gain and dispersion near the resonance frequency may have some potential applications.
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