What Is Quantum Physics and What Do You Need to Know About It?

Quantum physics may not be well-known to everyone. A hotly disputed, intriguing theory that has the potential to revolutionize our understanding of the cosmos around us. Quantum discoveries have been adopted by some as a way to view existence. This relatively young subject has a history, but where does it come from? Retracing the major phases and discoveries of creative research, let's find out together!

This Unknown Fact About Quantum Mechanics

It is referred to as quantum physics, although it may also be referred to as quantum-theoretical mechanics. In fact, it is a mechanics theory that concentrates on the phenomena of the length scale, atomic and subatomic energies, giving fresh life to earlier ideas that were previously considered outmoded.


What are the distinctions between classical and quantum mechanics? The latter depicts radiation and matter as wave and particle phenomena. As a result, the wave-particle dualism might be regarded one of the discipline's distinguishing characteristics. Two concepts are explored and proven in the connection between waves and particles:

  • Complementarity principle
  • The uncertainty principle of Heisenberg

The former is formalised by the latter.

We may confidently assert that these intuitions gave rise to a new era, modern physics, following the discovery of relativity and the development of classical physics. Integration of several fields of physics is necessary to explore quantum mechanics comprehensively:

  • Physics of the atom
  • The science of matter
  • Nuclear physics is the study of nuclear reactions.
  • Physicists study particles.

But what has prompted this field's demand for new vistas and research?

How did quantum physics come to be?

The Beginning of Modern Physics

Classical physics could not examine the matter at the tiny level, beyond the atom, until the late nineteenth century. As a result, the experimental reality, particularly phenomena involving light and the electron, could not be examined. Man, on the other hand, has always desired to go farther, and his natural curiosity has pushed him to do more studies.

Image from LeverageEdu

The discoveries from the atomic scales challenges the antique assumptions in the early years of the 20th century. Through a term coined by scientist Max Planck at the beginning of the 20th century, quantum theory was born. The fundamental concept is that, although in continuous but discreet ways, the magnitudes and microscopic quantities of certain physical systems may vary.

But these conclusions were reached thanks to previous findings.

  • 1803 Atomics recognition as a molecular element
  • 1860 Periodic table grouping of chemical atoms
  • Electron and nuclear discovery in 1874
  • Violet radiation studies of 1887

This date may be regarded as a major turning point. For radiation frequencies below a certain threshold, the phenomenon of electromagnetic radiation interacting with matter (photoelectric effect) vanished. The energy of electrons was proportional to the frequency of electromagnetic radiation in the photoelectric effect. The wave theory of Maxwell was no longer adequate to explain certain phenomena.

Quantum Theory's Origin

To summarise the contribution to the development of quantum physics, we are able to provide important dates related to the findings and insights. Technical students are well aware of what we are discussing, but they do not always remember the succession of events that led to these sensational scientific revolutions.


A concisely defined timeline for retracing quantum mechanics history:

  • 1900: Planck proposes the notion of quantizing and emitting energy
  • 1905: the photoelectric effect of Einstein is demonstrated (the light quanta transports energy of the electromagnetic field (photons)
  • 1913: Bohr quantizes the electron's orbital movement
  • 1915: Sommerfeld presents new principles, which generalises methods of quantization

But the foundations have been established for what we now know as Quantum Theory since 1924. Louise de Broglie has developed a material wave hypothesis on this date. In 1927, he will always develop the principle of insecurity, in 1927 he will follow Dirac in 1927 with the particular theory of relativeity and the name Heisenberg will be taken over in the following year. The findings followed each other in a narrow manner until 1982, when the Orsay Optical Institute completed its investigation into the breach of Bell's inequality.


Enjoyed this article? Stay informed by joining our newsletter!


You must be logged in to post a comment.

About Author