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

Reconstruction of Signal using Interpolation01:10

Reconstruction of Signal using Interpolation

725
Signal processing techniques are essential for accurately converting continuous signals to digital formats and vice versa. When a continuous signal is sampled with a period T, the resulting sampled signal exhibits replicas of the original spectrum in the frequency domain, spaced at intervals equal to the sampling frequency. To handle this sampled signal, a zero-order hold method can be applied, which creates a piecewise constant signal by retaining each sample's value until the next...
725
Experimental Determination of Chemical Formula02:37

Experimental Determination of Chemical Formula

47.0K
The elemental makeup of a compound defines its chemical identity, and chemical formulas are the most concise way of representing this elemental makeup. When a compound’s formula is unknown, measuring the mass of its constituent elements is often the first step in determining the formula experimentally.
47.0K
Experimental Designs01:16

Experimental Designs

17.1K
An experimental design is a systematic process that allows researchers to evaluate the relationship between dependent and independent variables. There are three widely used types of experimental design - pre-experimental design, true experimental design, and quasi-experimental design. In pre-experimental design, the researcher compares the data before and after some interventions or treatments. The true-experimental design has more than one purposefully created group, a commonly measured...
17.1K
Experimental RNAi02:15

Experimental RNAi

7.5K
RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
7.5K
Correlation of Experimental Data01:23

Correlation of Experimental Data

481
Dimensional analysis simplifies complex physical problems and guides experimental investigations, but it does not provide complete solutions. It identifies the dimensionless groups that influence a phenomenon, but experimental data is needed to establish the specific relationships and validate theoretical predictions.
For example, a spherical particle moving through a viscous fluid experiences drag. Dimensional analysis shows that the drag force depends on the particle's diameter, velocity,...
481
Comparing Experimental Results: Student's t-Test01:09

Comparing Experimental Results: Student's t-Test

5.9K
The t-test is a statistical method used to compare the sample mean with a population mean or compare two means from two data sets. The test statistic is calculated from the standard deviation, mean, and number of measurements in the data set at a selected confidence interval and then compared to a table of critical values at this confidence level. If the test statistic is smaller than the critical value, the null hypothesis is accepted. In this case, we state that the difference between the...
5.9K

You might also read

Related Articles

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

Sort by
Same author

Programmable time-frequency mode-sorting of single photons with a multi-output quantum pulse gate.

Optics express·2025
Same author

Evidence-Based Certification of Quantum Dimensions.

Physical review letters·2024
Same author

Lithium niobate waveguide squeezer with integrated cavity length stabilisation for network applications.

Optics express·2023
Same author

[Intraoperative fluorescence-guided perfusion assessment using indocyanine green-Increased safety in gastrointestinal anastomoses?]

Chirurgie (Heidelberg, Germany)·2022
Same author

Quantum Correlations beyond Entanglement and Discord.

Physical review letters·2021
Same author

Waveguide resonator with an integrated phase modulator for second harmonic generation.

Optics express·2021

Related Experiment Video

Updated: Jan 28, 2026

Molecular Entanglement and Electrospinnability of Biopolymers
07:59

Molecular Entanglement and Electrospinnability of Biopolymers

Published on: September 3, 2014

15.1K

Experimental Reconstruction of Entanglement Quasiprobabilities.

J Sperling1, E Meyer-Scott1, S Barkhofen1

  • 1Integrated Quantum Optics Group, Applied Physics, University of Paderborn, 33098 Paderborn, Germany.

Physical Review Letters
|March 2, 2019
PubMed
Summary

Researchers experimentally reconstructed entanglement quasiprobability, a novel method for identifying quantum entanglement. This technique fully characterizes quantum states and certifies entanglement without needing error correction.

More Related Videos

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

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

Published on: September 5, 2019

8.9K
Designing CAD/CAM Surgical Guides for Maxillary Reconstruction Using an In-house Approach
08:01

Designing CAD/CAM Surgical Guides for Maxillary Reconstruction Using an In-house Approach

Published on: August 24, 2018

9.4K

Related Experiment Videos

Last Updated: Jan 28, 2026

Molecular Entanglement and Electrospinnability of Biopolymers
07:59

Molecular Entanglement and Electrospinnability of Biopolymers

Published on: September 3, 2014

15.1K
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

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

Published on: September 5, 2019

8.9K
Designing CAD/CAM Surgical Guides for Maxillary Reconstruction Using an In-house Approach
08:01

Designing CAD/CAM Surgical Guides for Maxillary Reconstruction Using an In-house Approach

Published on: August 24, 2018

9.4K

Area of Science:

  • Quantum Information Science
  • Quantum Optics
  • Quantum Foundations

Background:

  • Quantum entanglement is a fundamental resource in quantum information science, crucial for quantum computing and communication.
  • Characterizing and verifying entanglement experimentally remains a significant challenge, especially for complex quantum states.
  • Existing methods for entanglement detection often rely on specific assumptions or require extensive data, limiting their practical application.

Purpose of the Study:

  • To experimentally reconstruct and utilize entanglement quasiprobabilities for quantum state characterization.
  • To develop a novel method where negativities directly identify quantum entanglement and separability.
  • To certify entanglement of a prepared quantum state with high significance and robustness against experimental imperfections.

Main Methods:

  • Development of a reconstruction algorithm for entanglement quasiprobabilities.
  • Experimental preparation of a polarization Bell state, a fundamental entangled quantum state.
  • Certification of entanglement by analyzing the reconstructed quasiprobability distributions and their negativities.

Main Results:

  • Successful experimental reconstruction of an entanglement quasiprobability distribution.
  • Demonstration that the negativities in the distribution are necessary and sufficient indicators of entanglement.
  • High-significance entanglement certification of the prepared Bell state without requiring error correction.

Conclusions:

  • The experimental reconstruction of entanglement quasiprobabilities offers a powerful and direct tool for quantum state characterization.
  • This method provides a robust and efficient way to identify and certify quantum entanglement, overcoming limitations of previous techniques.
  • The findings pave the way for more advanced applications in quantum information processing and fundamental quantum physics research.