Effective electrostatic attraction between electrons due to quantum interference
arXiv:1808.07082 · doi:10.1103/PhysRevA.100.022101
Abstract
We show how, with the use of quantum interference, we can violate, in some sense, the rule that charges of equal sign always repel each other. By considering two electrons that propagate parallel to each other in a Mach-Zehnder interferometer, we show that the quantum superposition of the electrostatic repulsion when the electrons propagate in the same path with the absence of interaction when they propagate in opposite paths may result in an effective attraction between them, when we post-select by which port each electron leaves the interferometer. We also discuss an experimental setup that could be used to verify such an effect.
arXiv comment7 pages, 4 figures. V3: published version
References in corpus (18)
- Colloquium: Understanding Quantum Weak Values: Basics and Applications
- Quantum Mechanical Interaction-Free Measurements
- Coherence and Indistinguishability of Single Electrons Emitted by Independent Sources
- A double-slit quantum eraser
- A spatially and temporally localized sub-laser-cycle electron source
- A quantum delayed choice experiment
- Entanglement-enabled delayed choice experiment
- Controlled double-slit electron diffraction
- Proposal for a quantum delayed-choice experiment
- Laser-induced ultrafast electron emission from a field emission tip
- Highly coherent electron beam from a laser-triggered tungsten needle tip
- Interaction-free measurements by quantum Zeno stabilisation of ultracold atoms
- Measuring Which-Path Information with Coupled Electronic Mach-Zehnder Interferometers
- A three grating electron interferometer
- Quantum description and properties of electrons emitted from pulsed nanotip electron sources
- The classical limit of quantum optics: not what it seems at first sight
- Hong-Ou-Mandel interference without beam splitters
- Quantum Interference of Force