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Effects of non-Gaussian noise on a calcium oscillation system |
| Wang Bing (王兵)a b, Sun Ya-Qin (孙雅琴)b, Tang Xu-Dong (唐旭东)b |
a Department of Physics, Yunnan University, Kunming 650091, China;
b Department of Physics and Mathematics, Anhui University of Science and Technology, Huainan 232001, China |
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Abstract We investigate the effects of the non-Gaussian colored noise on a calcium oscillation system using stochastic simulation methods. It is found that the reciprocal coefficient of variance R has a maximum (Rmax) with increasing noise intensity Q. The non-Gaussian noise parameter q has an important effect on the system. For some values of q (e.g., q=0.9, q=1.0), R exists a maximum with increasing correlation time τ. Non-Gaussian noise induced spikes are more regular than Gaussian noise induced spikes when q is small and Q has large values. The R has a maximum with increasing q. Therefore, non-Gaussian noise could play more effective roles in the calcium oscillation system.
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Received: 14 March 2012
Revised: 27 June 2012
Accepted manuscript online:
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PACS:
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05.45.-a
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(Nonlinear dynamics and chaos)
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82.40.Bj
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(Oscillations, chaos, and bifurcations)
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| Fund: Project supported by the Natural Science Foundation of Anhui Province, China (Grant No. KJ2012A085). |
Corresponding Authors:
Wang Bing
E-mail: hnitwb@163.com
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Cite this article:
Wang Bing (王兵), Sun Ya-Qin (孙雅琴), Tang Xu-Dong (唐旭东) Effects of non-Gaussian noise on a calcium oscillation system 2013 Chin. Phys. B 22 010501
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