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Related Concept Videos

Quantum Numbers02:43

Quantum Numbers

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It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
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Luminescence, the emission of light by a substance that has absorbed energy, is a process that involves the interaction of molecules with light. The energy-level diagram, or Jablonski diagram, is a graphical representation of these interactions, illustrating the various states and transitions a molecule can undergo. In a typical Jablonski diagram, the lowest horizontal line represents the ground-state energy of the molecule, which is usually a singlet state. This state represents the energies...
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NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of one, the...
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Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
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The Pauli Exclusion Principle03:06

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The arrangement of electrons in the orbitals of an atom is called its electron configuration. We describe an electron configuration with a symbol that contains three pieces of information:
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Discorrelated quantum states.

Evan Meyer-Scott1, Johannes Tiedau1, Georg Harder1

  • 1Department of Physics, University of Paderborn, Warburger Straße 100, 33098 Paderborn, Germany.

Scientific Reports
|January 31, 2017
PubMed
Summary
This summary is machine-generated.

Researchers discovered "discorrelation," a quantum optical phenomenon where measuring one system guarantees a zero probability for a specific outcome in another. This novel quantum property, achieved with basic optical elements, has implications for quantum information science.

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Area of Science:

  • Quantum optics
  • Quantum mechanics
  • Quantum information science

Background:

  • Statistical properties of photons are key to quantum mechanics.
  • Correlations in multiphoton, two-mode systems link measurement outcomes between subsystems.

Purpose of the Study:

  • Introduce and demonstrate a novel statistical property termed "discorrelation" in quantum optics.
  • Explore the construction and properties of discorrelated quantum states.

Main Methods:

  • Utilized fundamental quantum optics building blocks: coherent states, single photons, beam splitters, and projective measurements.
  • Constructed various discorrelated states from these basic components.

Main Results:

  • Demonstrated "discorrelation," where a measurement on one subsystem forces a zero probability for a specific outcome in the other.
  • Showcased that these discorrelated states are inherently entangled.
  • Analyzed the sensitivity of these discorrelated states to photon loss.

Conclusions:

  • Discorrelation is a novel, experimentally achievable quantum optical phenomenon.
  • Discorrelated states represent a new class of entangled states with potential applications.
  • Understanding discorrelated state sensitivity to loss is crucial for practical implementation.