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

Multiple Pipe Systems01:21

Multiple Pipe Systems

1.1K
Multipipe systems consist of complex configurations of interconnected pipes designed to transport fluids efficiently across intricate networks. They are essential in engineering applications requiring precise control over flow distribution, pressure, and head loss. They are categorized into series, parallel, loop, and network configurations, each distinguished by unique flow characteristics and applications.
Series Configuration
In a series configuration, fluid flows sequentially from one pipe...
1.1K
Collisions in Multiple Dimensions: Introduction01:05

Collisions in Multiple Dimensions: Introduction

6.3K
It is far more common for collisions to occur in two dimensions; that is, the initial velocity vectors are neither parallel nor antiparallel to each other. Let's see what complications arise from this. The first idea is that momentum is a vector. Like all vectors, it can be expressed as a sum of perpendicular components (usually, though not always, an x-component and a y-component, and a z-component if necessary). Thus, when the statement of conservation of momentum is written for a...
6.3K
Collisions in Multiple Dimensions: Problem Solving01:06

Collisions in Multiple Dimensions: Problem Solving

5.1K
In multiple dimensions, the conservation of momentum applies in each direction independently. Hence, to solve collisions in multiple dimensions, we should write down the momentum conservation in each direction separately. To help understand collisions in multiple dimensions, consider an example.
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...
5.1K
Natural Selection and Adaptation01:15

Natural Selection and Adaptation

1.1K
Natural selection, a fundamental concept in evolutionary biology, is the mechanism by which evolution is driven, favoring organisms that are best adapted to their environments. This process enhances their chances of survival and reproduction. Adaptation, a key outcome of this process, involves genetic modifications that optimize an organism's functionality under specific environmental challenges, such as extreme cold or thinner air at high altitudes.
Beyond physical adaptations,...
1.1K
Parallel Processing01:20

Parallel Processing

550
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
550
Multi-input and Multi-variable systems01:22

Multi-input and Multi-variable systems

332
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence of...
332

You might also read

Related Articles

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

Sort by
Same author

H3K27M-driven hypertranscription leads to a new targetable dependency in diffuse midline gliomas.

bioRxiv : the preprint server for biology·2026
Same author

Geographic variations in ACGME PGY-2 PM&R residency program salaries compared to cost of living.

PM & R : the journal of injury, function, and rehabilitation·2026
Same author

Renewed focus on reducing the burden of pre-eclampsia.

Bulletin of the World Health Organization·2026
Same author

Mise à jour technique n° 467 : La progestérone en cas d'antécédents d'accouchement prématuré spontané.

Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC·2026
Same author

Technical Update No. 467: Progesterone for Previous Spontaneous Preterm Birth.

Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC·2026
Same author

Diagnostic Yield of Sequencing for Prenatal Diagnosis of Fetal Structural Anomalies: An Updated Systematic Review.

Prenatal diagnosis·2026
Same journal

Demonstration of a quantum C-NOT gate in a time-multiplexed fully reconfigurable photonic processor.

Nature communications·2026
Same journal

Nonlinear quantum light source with van der Waals ferroelectric NbOX<sub>2</sub> (X = Br, I).

Nature communications·2026
Same journal

Antagonistic histone H2A variants and autonomous heterochromatin formation shape epigenomic patterns in Arabidopsis.

Nature communications·2026
Same journal

The long tail of nitrate pollution in groundwater challenges governance of global water quality.

Nature communications·2026
Same journal

Select microbial metabolites promote tau aggregation in a murine tauopathy model.

Nature communications·2026
Same journal

Warming climate has lengthened global intense tropical cyclone seasons.

Nature communications·2026
See all related articles

Related Experiment Video

Updated: Dec 25, 2025

Combining Computer Game-Based Behavioural Experiments With High-Density EEG and Infrared Gaze Tracking
13:40

Combining Computer Game-Based Behavioural Experiments With High-Density EEG and Infrared Gaze Tracking

Published on: December 16, 2010

17.1K

Playing games with multiple access channels.

Felix Leditzky1,2, Mohammad A Alhejji3,4, Joshua Levin3,4

  • 1JILA, University of Colorado/NIST, Boulder, CO, 80309, USA. felix.leditzky@jila.colorado.edu.

Nature Communications
|March 22, 2020
PubMed
Summary
This summary is machine-generated.

Quantum entanglement can significantly enhance communication network capacity. However, achieving optimal performance may necessitate unbounded entanglement, and its computability remains an open challenge.

More Related Videos

The HoneyComb Paradigm for Research on Collective Human Behavior
06:48

The HoneyComb Paradigm for Research on Collective Human Behavior

Published on: January 19, 2019

9.7K
Measuring Engagement of Spectators of Social Digital Games
14:02

Measuring Engagement of Spectators of Social Digital Games

Published on: July 3, 2021

3.8K

Related Experiment Videos

Last Updated: Dec 25, 2025

Combining Computer Game-Based Behavioural Experiments With High-Density EEG and Infrared Gaze Tracking
13:40

Combining Computer Game-Based Behavioural Experiments With High-Density EEG and Infrared Gaze Tracking

Published on: December 16, 2010

17.1K
The HoneyComb Paradigm for Research on Collective Human Behavior
06:48

The HoneyComb Paradigm for Research on Collective Human Behavior

Published on: January 19, 2019

9.7K
Measuring Engagement of Spectators of Social Digital Games
14:02

Measuring Engagement of Spectators of Social Digital Games

Published on: July 3, 2021

3.8K

Area of Science:

  • Information Theory
  • Quantum Information Science
  • Computer Science

Background:

  • Multiple Access Channels (MAC) are fundamental in communication networks, modeling scenarios like mobile phone uplinks.
  • The capacity region defines the optimal performance of a MAC, quantifying achievable communication rates.
  • The two-sender classical MAC is a well-studied yet surprisingly complex network model.

Purpose of the Study:

  • To investigate the impact of quantum entanglement on the capacity of classical MACs.
  • To explore the relationship between input size, entanglement, and MAC performance.
  • To determine the decidability and complexity of evaluating MAC capacity regions.

Main Methods:

  • Theoretical analysis of classical and quantum communication protocols for MACs.
  • Investigation of entanglement-assisted communication strategies.
  • Complexity theory analysis, including NP-hardness and undecidability proofs.

Main Results:

  • Shared quantum entanglement can substantially increase the capacity of a classical MAC.
  • Optimal MAC performance with bounded inputs may require unbounded entanglement.
  • Deciding achievability of perfect communication rates with finite entanglement is undecidable.
  • Evaluating the capacity region of a two-sender classical MAC is NP-hard.

Conclusions:

  • Quantum resources offer novel ways to enhance classical communication systems.
  • The complexity of communication channel analysis extends to quantum regimes.
  • Fundamental limits and computational challenges exist in optimizing network performance.