Quantum computers may represent the next major paradigm shift in technology. In theory, such computers could perform faster and more complex computations using a fraction of the energy. However, in practice, building a quantum computer is a very tricky engineering challenge.
At the atomic level, particles do not behave in a way one would expect from the laws of classical physics. According to the Heisenberg uncertainty principle, it is impossible to precisely determine the speed and location of a particle at any given moment. Instead, particles are characterized by a wave function that represents a probability that the particle will be in a given physical state.
To read more, click here.