QUANTUM FLUCTUATIONS AND THE SINGLE-JUNCTION COULOMB BLOCKADE
QUANTUM FLUCTUATIONS AND THE SINGLE-JUNCTION COULOMB BLOCKADE
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DOI：
10.1103/physrevlett.64.3183
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发表时间：
1990-06-25
影响因子：
8.6
通讯作者：
STILES, MD
中科院分区：
文献类型：
--
作者：
GIRVIN, SM;GLAZMAN, LI;STILES, MD
本文研究了通过任意阻抗Z（ω）的传输线耦合到环境中的单隧道结中量子涨落对库仑阻塞的影响。当电子隧穿结时，传输线的量子化振荡模式突然发生位移。对于小Z（相对于电阻量子），弱幂律零偏异常发生与红外发散振荡的低频传输线模式。对于大Z，完全封锁被恢复。与最近的实验进行了比较。
We investigate the effect of quantum fluctuations on the Coulomb blockade in a single tunnel junction coupled to its environment by a transmission line of arbitrary impedance Z (ω). The quantized oscillation modes of the transmission line are suddenly displaced when an electron tunnels through the junction. For small Z (relative to the quantum of resitance), a weak power-law zero-bias anomaly occurs associated with the infrared-divergent shakeup of low-frequency transmission-line modes. For large Z, the full blockade is recovered. Comparison with recent experiments is made.