Single spin read out in quantum dots

被引：0
|
作者：
Wolf, S [1 ]
Curcic, T [1 ]
机构：
[1] Univ Virginia, Charlottesville, VA USA
来源：
PHYSICS WORLD | 2005年 / 18卷 / 07期
关键词：
Electric potential - Electrons - Gates (transistor) - Ground state - Magnetic field effects - Nuclear magnetic resonance - Photons - Polarization - Quantum cryptography - Semiconductor quantum dots;
D O I：
10.1088/2058-7058/18/7/31
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A method for reading out the states of an electron in a single measurement for the development of quantum computing, is described. Delft researchers, in an experiment, have determined whether the pair is in singlet state, whereby the two electron spins point in opposite directions. For this purpose, an electron was added to a quantum dot that already contained one electron by applying a voltage pulse to one of the confining gates. The voltage pulse ends about a millisecond later, allowing one electron to escape from the quantum dot.
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页码：21 / 21
页数：1
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