What does "Dynamical Tunneling" mean?
Table of Contents
Dynamical tunneling is a process where particles move through barriers in a way that seems impossible based on classical physics. In simple terms, it allows particles, like electrons, to pass from one area to another without needing enough energy to overcome the barrier directly.
How It Works
In some special structures called superlattices, particles can be guided along specific paths known as superwires. These paths are not rigid; they are influenced by slight changes in the superlattice. This dynamic guidance is what helps particles tunnel through areas that should be off-limits according to classical rules.
Quantum Effects
The behavior of particles in this tunneling process is very different from what we see in our everyday world. When tunneling occurs, it can change certain important values that are usually conserved in classical systems. This means that some rules we expect to hold true can be bent under the influence of quantum mechanics.
Applications
Understanding dynamical tunneling can lead to new technologies, especially in tiny devices known as nanodevices. By controlling how tunneling happens, we can develop better, more efficient electronic components.