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

Entropy Change in Reversible Processes01:10

Entropy Change in Reversible Processes

2.5K
In the Carnot engine, which achieves the maximum efficiency between two reservoirs of fixed temperatures, the total change in entropy is zero. The observation can be generalized by considering any reversible cyclic process consisting of many Carnot cycles. Thus, it can be stated that the total entropy change of any ideal reversible cycle is zero.
The statement can be further generalized to prove that entropy is a state function. Take a cyclic process between any two points on a p-V diagram.
2.5K
First Law: Particles in One-dimensional Equilibrium01:10

First Law: Particles in One-dimensional Equilibrium

6.7K
Newton's first law of motion states that a body at rest remains at rest, or if in motion, remains in motion at constant velocity, unless acted on by a net external force. It also states that there must be a cause for any change in velocity (a change in either magnitude or direction) to occur. This cause is a net external force. For example, consider what happens to an object sliding along a rough horizontal surface. The object quickly grinds to a halt, due to the net force of friction. If...
6.7K
First Law: Particles in Two-dimensional Equilibrium01:18

First Law: Particles in Two-dimensional Equilibrium

5.0K
Recall that a particle in equilibrium is one for which the external forces are balanced. Static equilibrium involves objects at rest, and dynamic equilibrium involves objects in motion without acceleration; but it is important to remember that these conditions are relative. For instance, an object may be at rest when viewed from one frame of reference, but that same object would appear to be in motion when viewed by someone moving at a constant velocity.
Newton's first law tells us about...
5.0K
Entropy and the Second Law of Thermodynamics01:20

Entropy and the Second Law of Thermodynamics

2.7K
The second law of thermodynamics can be stated quantitatively using the concept of entropy. Entropy is the measure of disorder of the system.
The relation  between entropy and disorder can be illustrated with the example of the phase change of ice to water. In ice, the molecules are located at specific sites giving a solid state, whereas, in a liquid form, these molecules are much freer to move. The molecular arrangement has therefore become more randomized. Although the change in average...
2.7K
Symmetry in Maxwell's Equations01:28

Symmetry in Maxwell's Equations

3.2K
Once the fields have been calculated using Maxwell's four equations, the Lorentz force equation gives the force that the fields exert on a charged particle moving with a certain velocity. The Lorentz force equation combines the force of the electric field and of the magnetic field on the moving charge. Maxwell's equations and the Lorentz force law together encompass all the laws of electricity and magnetism. The symmetry that Maxwell introduced into his mathematical framework may not be...
3.2K
Space-Time Curvature and the General Theory of Relativity01:17

Space-Time Curvature and the General Theory of Relativity

2.6K
In 1905, Albert Einstein published his special theory of relativity. According to this theory, no matter in the universe can attain a speed greater than the speed of light in a vacuum, which thus serves as the speed limit of the universe.
This has been verified in many experiments. However, space and time are no longer absolute. Two observers moving relative to one another do not agree on the length of objects or the passage of time. The mechanics of objects based on Newton's laws of...
2.6K

You might also read

Related Articles

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

Sort by
Same author

Compact cavity-enhanced aerosol detector using incoherent light sources.

Applied optics·2025
Same author

Polycystic ovary syndrome and its management: In view of oxidative stress.

Biomolecular concepts·2024
Same author

A chip-scale atomic beam clock.

Nature communications·2023
Same author

High-quality-factor microring resonator for strong atom-light interactions using miniature atomic beams.

Optics letters·2020
Same author

Nematic-Orbit Coupling and Nematic Density Waves in Spin-1 Condensates.

Physical review letters·2020
Same author

Room-Temperature Spin Polariton Diode Laser.

Physical review letters·2017

Related Experiment Video

Updated: May 22, 2025

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
00:07

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

8.4K

Deterministic Photonic Entanglement Arising from Non-Abelian Quantum Holonomy.

Aniruddha Bhattacharya1, Chandra Raman1

  • 1Georgia Institute of Technology, School of Physics, 837 State Street, Atlanta, Georgia 30332-0430, USA.

Physical Review Letters
|March 14, 2025
PubMed
Summary

Researchers developed a new protocol for deterministic photon entanglement using on-chip photonic systems. This breakthrough enables high-fidelity quantum information processing with light.

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

14.4K
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

8.9K

Related Experiment Videos

Last Updated: May 22, 2025

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
00:07

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

8.4K
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

14.4K
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

8.9K

Area of Science:

  • Quantum Information Science
  • Photonics
  • Quantum Optics

Background:

  • Deterministic photon entanglement is crucial for quantum information processing but remains a significant challenge.
  • Previous research has explored various methods, but achieving high fidelity and control has been elusive.

Purpose of the Study:

  • To devise a protocol for creating and manipulating highly entangled photon states.
  • To demonstrate deterministic entanglement of N-dimensional quantum systems using photonic platforms.
  • To establish a connection between quantum holonomy and irreducible representations for entanglement.

Main Methods:

  • Utilizing an on-chip photonic system capable of three-dimensional, non-Abelian quantum holonomy.
  • Analyzing matrix representations of unitary quantum holonomy within energy-degenerate subspaces.
  • Connecting quantum holonomy to irreducible representations of rotation operators for N-dimensional systems.

Main Results:

  • The protocol enables the creation of highly entangled superpositions of well-controlled light states.
  • Calculations show that some entangled states are maximally entangled, "volume-law" states.
  • The approach allows for deterministic entanglement of two arbitrarily high, N-dimensional quantum systems.

Conclusions:

  • The developed protocol offers a pathway for deterministic quantum information processing with light.
  • Entanglement generated can be distilled and purified for quantum science applications.
  • The method deterministically entangles distinguishable, individually accessible photonic modes.