Quantum physics, also known as quantum mechanics, is a branch of physics that deals with the behavior of matter and energy at the smallest scales, such as atoms, molecules, and subatomic particles. It was developed in the early 20th century and is now considered one of the pillars of modern physics.
Quantum physics differs from classical physics in several key ways. In classical physics, objects have definite properties such as position, velocity, and energy, while in quantum physics, these properties are described in terms of probabilities. Additionally, quantum physics allows for the phenomenon of quantum entanglement, where the state of two or more particles can become correlated in such a way that the state of one particle can affect the state of another particle, even when they are separated by large distances.
Quantum mechanics has a wide range of practical applications, including the development of technologies such as transistors, lasers, and computer chips. It is also used in the study of chemical reactions, solid-state materials, and in many other areas of physics and engineering.
Despite its many successes, quantum mechanics remains one of the most mysterious and counterintuitive areas of physics. Many of its predictions, such as the dual nature of matter and energy, the uncertainty principle, and the phenomenon of quantum tunneling, are still not fully understood and continue to be the subject of active research and debate among physicists.
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