Electron Interferometer
نویسندگان
چکیده
منابع مشابه
An electron Talbot interferometer
The Talbot effect [1], in which a wave imprinted with transverse periodicity reconstructs itself at regular intervals, is a diffraction phenomenon that occurs in many physical systems. Here we present the first observation of the Talbot effect for electron de Broglie waves behind a nanofabricated transmission grating. This was thought to be difficult because of Coulomb interactions between elec...
متن کاملElectron transport in a quantum interferometer
Electron transport properties of a quantum interferometer are studied based on the Green’s function formalism. The interferometer is symmetrically attached to two one-dimensional metallic electrodes, viz, source and drain, and here we adopt a simple tight-binding model to describe the bridge system. In this article we address numerically the conductance-energy and current-voltage characteristic...
متن کاملQuantum Transport in an Aharonov-Bohm Electron Interferometer
We report experiments on quantum electron interferometers fabricated from GaAs/AlGaAs heterojunctions. In this kind of devices, an electron island with two nearly open constrictions is defined by etched trenches. In the quantum Hall (QH) regime, two counterpropagating edge channels are coupled by tunneling in the constrictions, thus forming a closed interference path. We observe periodic Aharon...
متن کاملUnexpected behavior in a two-path electron interferometer.
We report the observation of an unpredictable behavior of a simple, two-path, electron interferometer. Utilizing an electronic analog of the well-known optical Mach-Zehnder interferometer, with current carrying edge channels in the quantum Hall effect regime, we measured high contrast Aharonov-Bohm (AB) oscillations. Surprisingly, the amplitude of the oscillations varied with energy in a lobe f...
متن کاملMolecular interferometer to decode attosecond electron-nuclear dynamics.
Understanding the coupled electronic and nuclear dynamics in molecules by using pump-probe schemes requires not only the use of short enough laser pulses but also wavelengths and intensities that do not modify the intrinsic behavior of the system. In this respect, extreme UV pulses of few-femtosecond and attosecond durations have been recognized as the ideal tool because their short wavelengths...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review
سال: 1952
ISSN: 0031-899X
DOI: 10.1103/physrev.85.1057