Kvanttivastusta

Kvanttivastusta, also known as quantum resistance, is a phenomenon observed in certain materials at very low temperatures, where the electrical resistance does not decrease to zero as expected, but instead remains finite. This behavior is contrary to the classical Ohm's law, which states that the resistance of a conductor decreases as its temperature decreases. Kvanttivastusta was first observed in 1980 by Georg Bednorz and K. Alex Müller, who were awarded the Nobel Prize in Physics in 1987 for their discovery.

The effect is typically observed in materials that are superconductors at low temperatures, but exhibit a finite resistance above a certain critical temperature. This critical temperature is much lower than the temperature at which the material becomes a superconductor. The origin of kvanttivastusta is not fully understood, but it is believed to be related to the quantum mechanical behavior of electrons in the material.

Kvanttivastusta has important implications for the study of superconductivity and the development of new materials with unique electrical properties. It is also of interest in the field of quantum computing, where the behavior of electrons at the quantum level is crucial. Despite its importance, kvanttivastusta remains an active area of research, with many unanswered questions and ongoing debates about its underlying mechanisms.