Are Dynamical Quantum Jumps Detector Dependent?

被引：25

作者：

Wiseman, Howard M. ^{[1
]}

Gambetta, Jay M. ^{[2
]}

机构：

[1] Griffith Univ, Ctr Quantum Dynam, Australian Res Council, Ctr Quantum Computat & Commun Technol, Brisbane, Qld 4111, Australia

[2] IBM TJ Watson Res Ctr, Yorktown Hts, NY 10598 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 22期

关键词：

STOCHASTIC DIFFERENTIAL-EQUATIONS; SYSTEMS; STATES;

D O I：

10.1103/PhysRevLett.108.220402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Dynamical quantum jumps were initially conceived by Bohr as objective events associated with the emission of a light quantum by an atom. Since the early 1990s they have come to be understood as being associated rather with the detection of a photon by a measurement device, and that different detection schemes result in different types of jumps (or diffusion). Here we propose experimental tests to rigorously prove the detector dependence of the stochastic evolution of an individual atom. The tests involve no special preparation of the atom or field, and the required efficiency can be as low as eta approximate to 58%.

引用

页数：5

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