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

The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

42.5K
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.
42.5K
Forced Oscillations01:06

Forced Oscillations

6.6K
When an oscillator is forced with a periodic driving force, the motion may seem chaotic. The motions of such oscillators are known as transients. After the transients die out, the oscillator reaches a steady state, where the motion is periodic, and the displacement is determined.
6.6K
Atomic Nuclei: Nuclear Relaxation Processes01:23

Atomic Nuclei: Nuclear Relaxation Processes

683
In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis.
683
The Bohr Model02:18

The Bohr Model

56.4K
Following the work of Ernest Rutherford and his colleagues in the early twentieth century, the picture of atoms consisting of tiny dense nuclei surrounded by lighter and even tinier electrons continually moving about the nucleus was well established. This picture was called the planetary model since it pictured the atom as a miniature “solar system” with the electrons orbiting the nucleus like planets orbiting the sun. The simplest atom is hydrogen, consisting of a single proton as...
56.4K
Oscillations In An LC Circuit01:30

Oscillations In An LC Circuit

2.3K
An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
2.3K
Fermi Level Dynamics01:12

Fermi Level Dynamics

286
The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
286

You might also read

Related Articles

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

Sort by
Same author

Non-reciprocal population dynamics in a quantum trimer.

Proceedings. Mathematical, physical, and engineering sciences·2022
Same author

Searching for kagome multi-bands and edge states in a predicted organic topological insulator.

Nanoscale·2021
Same author

Plasmonic modes in cylindrical nanoparticles and dimers.

Proceedings. Mathematical, physical, and engineering sciences·2021
Same journal

Turbulent flow in a vortex separator with a directed pipe inlet.

Scientific reports·2026
Same journal

Systematic characteristic evaluation of clay-based cementitious material derived from calcium carbide residue and waste tile powder.

Scientific reports·2026
Same journal

Retraction Note: Improvement of a rapid diagnostic application of monoclonal antibodies against avian influenza H7 subtype virus using Europium nanoparticles.

Scientific reports·2026
Same journal

Applying large language models to spam detection in the Kazakh low-resource language setting.

Scientific reports·2026
Same journal

An open-source 3D printing system enabling in-situ freeze-thaw processing of hydrogels.

Scientific reports·2026
Same journal

An enhanced EfficientNet framework for automated waste classification using cosine annealing and label smoothing.

Scientific reports·2026
See all related articles

Related Experiment Video

Updated: Jul 24, 2025

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

14.6K

Parametrically driving a quantum oscillator into exceptionality.

C A Downing1, A Vidiella-Barranco2

  • 1Department of Physics and Astronomy, University of Exeter, Exeter, EX4 4QL, UK. c.a.downing@exeter.ac.uk.

Scientific Reports
|July 7, 2023
PubMed
Summary
This summary is machine-generated.

This study explores exceptional points in driven, dissipative quantum systems. These points mark transitions between distinct quantum phases, influencing system dynamics and properties.

More Related Videos

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.0K
Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
14:58

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

14.8K

Related Experiment Videos

Last Updated: Jul 24, 2025

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

14.6K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.0K
Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
14:58

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

14.8K

Area of Science:

  • Quantum Physics
  • Non-Hermitian Physics
  • Condensed Matter Physics

Background:

  • Singularities are common in physical theories, including spacetime, condensed matter, and wave physics.
  • Exceptional points (EPs) in dissipative systems are where eigenvalues and eigenvectors coalesce.
  • The behavior of EPs in open quantum systems remains less explored.

Purpose of the Study:

  • Investigate exceptional points in a parametrically driven, lossy quantum oscillator.
  • Analyze the influence of EPs on quantum system dynamics and observable properties.
  • Examine dissipative phase transitions and their relation to the Liouvillian gap.

Main Methods:

  • Analysis of a quantum oscillator model with parametric driving and dissipation.
  • Study of the dynamical equations for the first and second moments of the system.
  • Investigation of eigenvalue coalescence and Liouvillian gap closure.

Main Results:

  • An exceptional point was identified in the moments' dynamics, acting as a phase boundary.
  • System properties like populations, correlations, and spectra depend on the position relative to the EP.
  • A dissipative phase transition was observed, linked to the closing of the Liouvillian gap.

Conclusions:

  • Exceptional points serve as critical boundaries in open quantum systems.
  • The findings highlight the distinct physical consequences of being above or below an EP.
  • The study suggests experimental verification and a broader re-evaluation of EPs in dissipative quantum mechanics.