Researchers from the University of Basel, Switzerland, were able to measure new parameters of the electron using the "artificial atom" technology. It is based on the manipulation of quantum dots, which are implemented using tiny semiconductor crystals in the nanometer range. They are used, for example, in experimental QLED displays. Now physicists have managed with their help to reveal the secrets of the electron.
Quantum dots are called artificial atoms for their ability to capture individual electrons and keep them in their area of control using electric fields. This phenomenon is largely identical to how "real" atoms interact with ions, but in this case the energy parameters of the system can be controlled and changed. This allowed the researchers to conduct a series of experiments with different field parameters in order to study the behavior of an electron in such a trap.
As a result, it was possible to calculate the shape of the electron wave function within the quantum dot, and even less than a nanometer appears in the equations. Scientists have accurately tracked the trajectory of an electron in magnetic fields, thereby obtaining its "geometry". And they made cautious statements that in the future they will be able to achieve complete control over the wave function and learn how to build routes for the movement of electrons for their purposes.
This unprecedented level of measurement and control of electrons opens up new possibilities for creating quantum computers. An electron rotating with specified parameters may well become an ideal candidate for the role of a qubit. Especially if it is possible to orient the wave functions of two electrons in the same plane and obtain optimal quantum entanglement. But for this you need to know about the structure and behavior of the electron more than the current level, so the experiments continue.