Single cooper-pair tunnelling induced by non-classical microwaves

被引：21

作者：

Odintsov, AA

Vourdas, A

机构：

[1] MOSCOW MV LOMONOSOV STATE UNIV,INST PHYS NUCL,MOSCOW 119899,RUSSIA

[2] UNIV LIVERPOOL,DEPT ELECT ENGN & ELECT,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND

来源：

EUROPHYSICS LETTERS | 1996年 / 34卷 / 05期

关键词：

D O I：

10.1209/epl/i1996-00468-4

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A mesoscopic Josephson junction interacting with a mode of non-classical microwaves with frequency omega is considered. Squeezing of the electromagnetic field drastically affects the dynamics of Cooper tunnelling. In particular, Bloch steps can be observed even when the microwaves are in the squeezed vacuum state with zero average amplitude of the field [E(t)] = 0. The interval between these steps is double in size in comparison to the conventional Bloch steps.

引用

页码：385 / 389

页数：5

共 15 条

[1]

AVERIN DV, 1990, QUANTUM EFFECTS SMAL

[2]

GRABERT H., 1992, NATO ASI SER, V294

[3]

HEKKING FWJ, 1994, PHYSICA B, V203

[4] THE SINGLE-ELECTRON TRANSISTOR [J].