Quantum mechanics is a theory in physics that describes the behavior of atoms and other microscopic (actually nanoscopic) objects. Quantum mechanics has many surprising consequences: a particle can be in two places at once; a particle can penetrate a solid wall. When applied to our human scale, this leads to surprising consequences such as the famous cat of Erwin Schroedinger’s Gedanken experiment, which is dead and alive at the same time.
At QNS, we are working with quantum mechanics on a daily basis. One of our main tools utilizes the quantum tunneling effect for electrons and is called a Scanning Tunneling Microscope. This tool has a phenomenal spatial resolution of better than single atoms, enabled through the utilization of quantum mechanics!