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arXiv 1706.09337cond-mat.mes-hall
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隧道结中光子辅助的动态库仑阻塞

Photon-assisted Dynamical Coulomb Blockade in a Tunnel Junction

Samuel Houle, Karl Thibault, Édouard Pinsolle, Christian Lupien, Bertrand Reulet

摘要:

本文报道了在动态库仑阻塞下隧道结中光子辅助输运和噪声的测量结果。我们已经测量了直流非线性传输和低频噪声中存在的交流激励的频率高达33 GHz。在这两个实验中,我们观察副本在有限电压的零偏置功能,光子发射/吸收的现象特性。然而,解释我们的数据所需的交流电压对于传输和噪声是明显不同的,这表明通常的光子辅助现象理论不能解释我们的观察结果。

英文摘要:

We report measurements of photon-assisted transport and noise in a tunnel junction in the regime of dynamical Coulomb blockade. We have measured both dc non-linear transport and low frequency noise in the presence of an ac excitation at frequencies up to 33 GHz. In both experiments we observe replicas at finite voltage of the zero bias features, a phenomenon characteristic of photon emission/absorption. However, the ac voltage necessary to explain our data is notably different for transport and noise, indicating that usual theory of photon-assisted phenomena fails to account for our observations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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