参数空间中的类属结构与棘轮输运
Generic Structures in Parameter Space and Ratchet Transport
摘要:
本文研究了棘轮模型参数空间中等周期稳定棘轮输运结构的存在性,讨论了耗散对空间不对称性和相位的影响。这样的结构被发现[物理。106,234101(2011)],并且它们似乎具有通用形状,并且沿着参数空间中的优选方向排列它们自己。由于棘轮电流通常在这些结构中较大,这允许我们对相关参数组合进行一般性陈述,以获得有效的棘轮电流。本工作的结果给出了进一步的证据的背景下,棘轮运输的等周期稳定结构的建议的通用属性。
英文摘要:
This work reports the existence of Isoperiodic Stable Ratchet Transport Structures in the parameter spaces dissipation versus spatial asymmetry and versus phase of a ratchet model. Such structures were found [Phys. Rev. Lett. 106, 234101 (2011)] in the parameter space dissipation versus amplitude of the ratchet potential and they appear to have generic shapes and to align themselves along preferred directions in the parameter space. Since the ratchet current is usually larger inside these structures, this allows us to make general statements about the relevant parameters combination to obtain an efficient ratchet current. Results of the present work give further evidences of the suggested generic properties of the isoperiodic stable structures in the context of ratchet transport.
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