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Related Concept Videos

The de Broglie Wavelength02:32

The de Broglie Wavelength

In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
The Quantum-Mechanical Model of an Atom02:45

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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. Schrödinger...
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¹³C NMR: ¹H–¹³C Decoupling

The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
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Propagation of Uncertainty from Systematic Error01:10

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The atomic mass of an element varies due to the relative ratio of its isotopes. A sample's relative proportion of oxygen isotopes influences its average atomic mass. For instance, if we were to measure the atomic mass of oxygen from a sample, the mass would be a weighted average of the isotopic masses of oxygen in that sample. Since a single sample is not likely to perfectly reflect the true atomic mass of oxygen for all the molecules of oxygen on Earth, the mass we obtain from this particular...
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
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Related Experiment Video

Updated: May 20, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Anticipating decoherence in quantum systems.

Pranshu Maan1, Yuheng Chen1, Sean Borneman2

  • 1Elmore Family School of Electrical and Computer Engineering, Birck Nanotechnology Center,Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN, USA.

Nature Communications
|May 18, 2026
PubMed
Summary
This summary is machine-generated.

Environmental disorder causes decoherence in quantum technologies. This study reveals predictable patterns in decoherence using statistical methods, enabling enhanced coherence for scalable quantum systems.

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Gradient Echo Quantum Memory in Warm Atomic Vapor
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Gradient Echo Quantum Memory in Warm Atomic Vapor

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Last Updated: May 20, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Gradient Echo Quantum Memory in Warm Atomic Vapor
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Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

Area of Science:

  • Quantum Information Science
  • Quantum Computing
  • Quantum Communication

Background:

  • Scalable quantum technologies depend on maintaining quantum coherence across distant nodes.
  • Environmental disorder, including dephasing and spectral diffusion, significantly degrades quantum coherence.

Purpose of the Study:

  • To uncover correlations in decoherence channels induced by slowly varying environments.
  • To develop a framework for predicting and mitigating decoherence dynamics in quantum systems.

Main Methods:

  • Utilized statistical methods and replica-theory-inspired trajectory analysis.
  • Employed an anticipatory systems framework to predict spectral dynamics.
  • Validated findings across multiple quantum systems, including nitrogen-vacancy centers, quantum-dot spin qubits, and superconducting qubits.

Main Results:

  • Identified predictable temporal structures in decoherence dynamics.
  • Demonstrated that the anticipatory systems framework can reduce spectral shift by factors of 2 to 19.
  • Showcased the framework's applicability to diverse disordered quantum systems.

Conclusions:

  • The developed framework offers a method to enhance quantum coherence by predicting and mitigating environmental noise.
  • This approach is crucial for enabling robust multi-node synchronization in scalable quantum communication, computation, imaging, and sensing.