Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

2.3K
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...
2.3K
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

62.2K
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...
62.2K
Quantum Numbers02:43

Quantum Numbers

54.8K
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.
54.8K
The Pauli Exclusion Principle03:06

The Pauli Exclusion Principle

62.2K
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:
62.2K
Atomic Nuclei: Nuclear Spin State Population Distribution01:14

Atomic Nuclei: Nuclear Spin State Population Distribution

2.6K
Near absolute zero temperatures, in the presence of a magnetic field, the majority of nuclei prefer the lower energy spin-up state to the higher energy spin-down state. As temperatures increase, the energy from thermal collisions distributes the spins more equally between the two states. The Boltzmann distribution equation gives the ratio of the number of spins predicted in the spin −½ (N−) and spin +½ (N+) states.
2.6K
Spin–Spin Coupling Constant: Overview01:08

Spin–Spin Coupling Constant: Overview

1.7K
In bromoethane, the three methyl protons are coupled to the two methylene protons that are three bonds away. In accordance with the n+1 rule, the signal from the methyl protons is split into three peaks with 1:2:1 relative intensities. The methylene protons appear as a quartet, with the relative intensities of 1:3:3:1.
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must...
1.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Measuring the visual angle of polarization-related entoptic phenomena using structured light.

Biomedical optics express·2024
Same author

Persistent disparities of cervical cancer among American Indians/Alaska natives: Are we maximizing prevention tools?

Gynecologic oncology·2022
Same author

Human psychophysical discrimination of spatially dependant Pancharatnam-Berry phases in optical spin-orbit states.

Scientific reports·2022
Same author

Noise refocusing in a five-blade neutron interferometer.

Journal of applied physics·2021
Same author

Methods for preparation and detection of neutron spin-orbit states.

New journal of physics·2021
Same author

Neutron limit on the strongly-coupled chameleon field.

Physical review. D. (2016)·2021

Related Experiment Video

Updated: Apr 17, 2026

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
15:47

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

17.2K

Quantum model of spin noise.

R Annabestani1, D G Cory2, J Emerson3

  • 1Institute for Quantum Computing, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada; Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.

Journal of Magnetic Resonance (San Diego, Calif. : 1997)
|February 15, 2015
PubMed
Summary
This summary is machine-generated.

Researchers describe spin noise, or quantum particle fluctuations, using open quantum systems. This unified model accurately predicts spin noise and its correlations for any particle dynamics or initial state.

Keywords:
Open quantum systemsSpin noise

More Related Videos

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

15.2K
Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

13.3K

Related Experiment Videos

Last Updated: Apr 17, 2026

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
15:47

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

17.2K
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

15.2K
Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

13.3K

Area of Science:

  • Quantum physics
  • Statistical mechanics

Background:

  • Spin noise arises from statistical fluctuations in ensembles of quantum particles.
  • Understanding spin noise is crucial for various quantum technologies and fundamental physics research.

Purpose of the Study:

  • To develop a unified theoretical framework for describing spin noise.
  • To model spin noise within the established principles of open quantum systems.
  • To account for diverse quantum particle dynamics and initial states.

Main Methods:

  • Formulating a description of spin noise using the mathematical language of open quantum systems.
  • Developing a model applicable to both strong and weak measurement regimes.
  • Incorporating arbitrary spin dynamics and initial states into the model.

Main Results:

  • The developed model successfully unifies the signatures of spin noise across different measurement strengths.
  • The framework allows for the calculation of spin noise for any arbitrary spin dynamics.
  • The time correlation function of spin noise can also be determined using this model.

Conclusions:

  • The open quantum systems approach provides a comprehensive and unified description of spin noise.
  • This model offers a powerful tool for analyzing and predicting spin noise in various quantum systems.
  • The findings have implications for the characterization and control of quantum states and noise.