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Quantum Physics!!!

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by

Joseph Mugisha

on 2 July 2014

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Transcript of Quantum Physics!!!

The History
More History
• 1913- Neil Bohr stated that electrons retained wavelike properties.
• 1924- Louis de Broglie stated that all particles can be associated with waves. He concluded that any particle has wave-particle duality.

Quantum Theory
The Quantum field Theory
• if something moves, it is made of quantons, or quantum particles
• in nature actions smaller than ħ = 1.1 ⋅ 10 to the power of34 Js is not observed
• it addresses particle transformation


Main concepts
Usefullness
What is Quantum Physics?
Quantum Physics!!!
• Quantum physics is the science of the miniscule, it deals with the behavior of matter and energy on the molecular/ atomic level.
• It mostly deals with subatomic particles and waves on levels even smaller than microscopic levels.
• Quantum physics is the foundation for other fields of study such as: quantum chemistry, structural biology and particle physics.


• 1900- Planck came up with the theory that light with frequency v is emitted in small quantized lumps of energy that are multiplied by a constant
o Planck’s constant E=hv where h ≈ 6.63 · 10−34 J · s
o He was initially experimenting on how radiation is related to temperature

• 1905- Einstein hypothesized that the quantization was inherent to light, concluding that the lumps could be interpreted as particles (photons)
• 1925-Werner Heisenberg categorized a section of quantum mechanics that made use of matrix mechanics.
• 1926- Erwin Schrodinger formulated a section of quantum mechanics based on waves, his equation deals with the governance of how waves behave in space and time.

• 1926- Max Born interpreted Schrodinger’s wave and discovered it to be an amplitude probability and that it yields the probability of finding a particle in a given location.
• 1926- Paul Dirac proved that Heisenberg’s and Schrodinger’s versions of quantum mechanics could derived from the same general version of quantum mechanics.

Fields of Quantum Physics
Quantum Chromodynamics
Quantum Electrodynamics
• The field theory of stronger nuclear interaction.
• Photons and light it helps
• Deals with the interactions between quarks and gluons.
• Study led to lasers and night vision


• “The quantum field description of electromagnetism".
• It delves into electromagnetic decay, lamps, lasers, vacuum energy, Casimir effect, etc.
• Photon exchange in electrons
• Explains the theory of weak nuclear interaction, which explains radioactivity and heat production.
• Delves into particle transformation and includes corrections to “classical” electrodynamics.

Quantum Entanglement
Schrodinger's cat
Uncertainty Principle
String Theory
Young's Double split experiments
• Quantum mechanics explained atom structure and therefore most advances in chemistry and physics would not be possible
• Most theories in quantum physics are in use today
• Ideas of quantum entanglement will probably play a significant role in the future

By Joseph Mugisha
Full transcript