Quantum nondemolition measurements of a qubit

被引：0
|
作者：
Averin, DV [1 ]
机构：
[1] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA
来源：
TOWARDS THE CONTROLLABLE QUANTUM STATES: MESOSCOPIC SUPERCONDUCTIVITY AND SPINTRONICS | 2003年
关键词：
D O I：
10.1142/9789812705556_0055
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The concept of quantum nondemolition (QND) measurement is extended to coherent oscillations in an individual two-state system. Such a measurement enables direct observation of intrinsic spectrum of these oscillations avoiding the detector-induced dephasing that affects the standard (non-QND) measurements. The suggested scheme can be realized in Josephson-junction qubits which combine flux and charge dynamics.
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页码：328 / 333
页数：6
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