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

¹H NMR: Long-Range Coupling01:27

¹H NMR: Long-Range Coupling

2.3K
The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene...
2.3K
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

6.9K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.9K
Overview of Cell Signaling01:23

Overview of Cell Signaling

22.9K
Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
22.9K
Assembly of Signaling Complexes01:30

Assembly of Signaling Complexes

6.3K
Multiprotein signaling complexes are formed in a dynamic process involving protein-protein interactions at the cytoplasmic domain of transmembrane receptors or enzymatic and non-enzymatic proteins associated with the receptor. These complexes ensure the activation and propagation of intracellular signals that regulate cell functions.
Interaction domains in cell signaling
Interaction domains recognize exposed features of their binding partners containing post-translationally modified sequences,...
6.3K
¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

1.3K
Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
1.3K
Contact-dependent Signaling01:19

Contact-dependent Signaling

46.2K
Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...
46.2K

You might also read

Related Articles

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

Sort by
Same author

Nonequilibrium universality of the nonreciprocally coupled O(n_{1})×O(n_{2}) model.

Physical review. E·2026
Same author

Correlated Noise Estimation with Quantum Sensor Networks.

Physical review letters·2026
Same author

Efficient Preparation of Dicke States.

Physical review letters·2026
Same author

Dynamical Complexity of Non-Gaussian Many-Body Systems with Dissipation.

Physical review letters·2025
Same author

Covariant Quantum Error-Correcting Codes with Metrological Entanglement Advantage.

Physical review letters·2025
Same author

Erratum: Enhancement of Rydberg Blockade via Microwave Dressing [Phys. Rev. Lett. 134, 123404 (2025)].

Physical review letters·2025
Same journal

Quantum algorithm for simulating the wave equation.

Physical review. A·2026
Same journal

Laser-free trapped-ion entangling gates with simultaneous insensitivity to qubit and motional decoherence.

Physical review. A·2026
Same journal

Subradiance of multilevel fermionic atoms in arrays with filling <math><mrow><mi>n</mi> <mo>⩾</mo> <mn>2</mn></mrow></math>.

Physical review. A·2026
Same journal

Blackbody radiation Zeeman shift in Rydberg atoms.

Physical review. A·2026
Same journal

Separation estimation of two freely rotating dipole emitters near the quantum limit.

Physical review. A·2026
Same journal

Effect of glancing collisions in the cold-atom vacuum standard.

Physical review. A·2025
See all related articles

Related Experiment Video

Updated: Nov 24, 2025

A Fluorescence-based Assay of Phospholipid Scramblase Activity
09:52

A Fluorescence-based Assay of Phospholipid Scramblase Activity

Published on: September 20, 2016

14.3K

Signaling and scrambling with strongly long-range interactions.

Andrew Y Guo1,2, Minh C Tran1,2,3, Andrew M Childs1,4,5

  • 1Joint Center for Quantum Information and Computer Science, NIST/University of Maryland, College Park, Maryland 20742, USA.

Physical Review. A
|December 28, 2020
PubMed
Summary
This summary is machine-generated.

We established new bounds for signaling and scrambling times in strongly long-range interacting quantum systems. These findings advance our understanding of quantum dynamics in systems lacking locality, crucial for quantum computation.

More Related Videos

Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy
12:24

Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy

Published on: September 29, 2016

7.3K
Assaying the Ability of Diffusible Signaling Molecules to Reorient Embryonic Spinal Commissural Axons
09:28

Assaying the Ability of Diffusible Signaling Molecules to Reorient Embryonic Spinal Commissural Axons

Published on: March 8, 2010

9.0K

Related Experiment Videos

Last Updated: Nov 24, 2025

A Fluorescence-based Assay of Phospholipid Scramblase Activity
09:52

A Fluorescence-based Assay of Phospholipid Scramblase Activity

Published on: September 20, 2016

14.3K
Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy
12:24

Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy

Published on: September 29, 2016

7.3K
Assaying the Ability of Diffusible Signaling Molecules to Reorient Embryonic Spinal Commissural Axons
09:28

Assaying the Ability of Diffusible Signaling Molecules to Reorient Embryonic Spinal Commissural Axons

Published on: March 8, 2010

9.0K

Area of Science:

  • Quantum Mechanics
  • Condensed Matter Physics
  • Quantum Information Theory

Background:

  • Strongly long-range interacting quantum systems, defined by power-law decaying interactions (1/r^α), are crucial in quantum computation and simulation.
  • These systems, relevant to quantum information scrambling and entanglement, lack a clear notion of locality, hindering a general understanding of their dynamics.

Purpose of the Study:

  • To address the lack of understanding in the dynamics of strongly long-range interacting quantum systems.
  • To establish rigorous bounds on the time scales for signaling and scrambling in these systems.

Main Methods:

  • Proved two novel Lieb-Robinson-type bounds tailored for strongly long-range interacting systems.
  • The first bound applies to systems with long-range hopping, specifically for α ⩽ D/2.
  • The second bound addresses generic long-range interacting spin Hamiltonians for all α < D.

Main Results:

  • Derived a saturable bound for signaling and scrambling times in systems with long-range hopping (α ⩽ D/2).
  • Established a tight lower bound for signaling time to extensive subsystems in generic spin systems (α < D).
  • Demonstrated that the many-site signaling time provides a lower bound for the scrambling time in these systems.

Conclusions:

  • The derived bounds offer significant progress in understanding the dynamics of strongly long-range interacting quantum systems.
  • These results are vital for advancing quantum information processing and theoretical models involving complex quantum interactions.