Quantum physics encompasses any discipline concerned with quantum-mechanical effects. Applications of quantum mechanics include explaining phenomena found in nature and developing technologies that rely upon quantum effects, like integrated circuits and lasers.
Quantum mechanics can also provide quantitative insight into ionic and covalent bonding processes by explicitly showing which molecules are energetically favorable to which others and the magnitudes of the energies involved. Quantum chemistry is also critically important for understanding how individual atoms are joined to form molecules.
Important applications of quantum theory include quantum chemistry and quantum optics, quantum computing, superconducting magnets, light-emitting diodes, optical amplifier and the laser, the transistor and semiconductors such as the microprocessor, magnetic resonance imaging and electron microscopy.
Conclusion:
Quantum physics encompasses any discipline concerned with quantum-mechanical effects. Applications include explaining phenomena found in nature and developing technologies that rely upon quantum effects such as integrated circuits and lasers. Quantum mechanics can also provide quantitative insight into ionic and covalent bonding processes by explicitly showing which molecules are energetically favorable to which others and the magnitude of the energies involved.
Source:
[1] Wikipedia Contributors. “Applications of Quantum Mechanics.” Wikipedia, Wikimedia Foundation, 27 Dec. 2020, en.wikipedia.org/wiki/Applications_of_quantum_mechanics. Accessed 4 Jan. 2021.