Theoretische Physik, ETH Zurich, Switzerland.
Phys Rev Lett. 2011 Aug 12;107(7):076803. doi: 10.1103/PhysRevLett.107.076803. Epub 2011 Aug 10.
We study a single-electron pulse injected into the chiral edge state of a quantum Hall device and subject it to a capacitive Coulomb interaction. We find that the scattered multiparticle state remains unentangled and hence can be created itself by a suitable classical voltage pulse. The application of an appropriate inverse pulse corrects for the shakeup due to the interaction and resurrects the original injected wave packet. We suggest an experiment with an asymmetric Mach-Zehnder interferometer where the application of such pulses manifests itself in an improved visibility.
我们研究了一个被注入量子霍尔器件手性边缘态的单电子脉冲，并对其施加电容库仑相互作用。我们发现，散射多粒子态仍然保持纠缠，因此可以通过适当的经典电压脉冲来创建自身。应用适当的逆脉冲可以纠正由于相互作用引起的微扰，并使原始注入的波包复活。我们提出了一个具有非对称马赫-曾德尔干涉仪的实验方案，其中这种脉冲的应用表现为提高了可见度。
