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

Woodward–Hoffmann Selection Rules and Microscopic Reversibility01:34

Woodward–Hoffmann Selection Rules and Microscopic Reversibility

3.3K
Electrocyclic reactions, cycloadditions, and sigmatropic rearrangements are concerted pericyclic reactions that proceed via a cyclic transition state. These reactions are stereospecific and regioselective. The stereochemistry of the products depends on the symmetry characteristics of the interacting orbitals and the reaction conditions. Accordingly, pericyclic reactions are classified as either symmetry-allowed or symmetry-forbidden. Woodward and Hoffmann presented the selection criteria for...
3.3K
Classifying Matter by State02:49

Classifying Matter by State

92.0K
Chemistry is the study of matter and the changes it undergoes. Matter is anything that has mass and occupies space. Matter is all around us; the air, water, soil, mountains, even our bodies are all examples of matter. Matter is divided into three states — solid, liquid, and gas — that are commonly found on earth. The fourth state of matter, plasma, occurs naturally in the interiors of stars. 
92.0K
Constraints and Statical Determinacy01:26

Constraints and Statical Determinacy

751
In structural engineering, the equilibrium of a system is not only determined by its equations of equilibrium but also with the help of constraints. Constraints refer to restrictions on the motion of a system. The proper combinations of constraints can minimize the total number of constraints needed to maintain a system in mechanical equilibrium. When this happens, the system is said to be statically determinate. For such systems, the unknown reaction supports can be estimated using equilibrium...
751
Principle of Equivalence01:18

Principle of Equivalence

2.3K
According to Albert Einstein (1897-1955), free-falling and feeling weightless are intrinsically linked. If a person were in free-fall under gravity, for example, diving towards the Earth from an airplane, they would feel completely weightless. Similarly, a person descending in a lift may feel partially weightless. Broadly speaking, it is assumed that an object in a uniform gravitational field and an object undergoing constant acceleration in the absence of gravity are under the same...
2.3K
Second Uniqueness Theorem01:16

Second Uniqueness Theorem

1.1K
Consider a region consisting of several individual conductors with a definite charge density in the region between these conductors. The second uniqueness theorem states that if the total charge on each conductor and the charge density in the in-between region are known, then the electric field can be uniquely determined.
In contrast, consider that the electric field is non-unique and apply Gauss's law in divergence form in the region between the conductors and the integral form to the...
1.1K
Stereoisomerism02:52

Stereoisomerism

12.6K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
12.6K

You might also read

Related Articles

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

Sort by
Same author

Sequential Discrimination of Mixed Quantum States.

Entropy (Basel, Switzerland)·2025
Same author

Thermodynamically consistent master equation based on subsystem eigenstates.

Physical review. E·2023
Same author

Preparation of quantum correlations assisted by a steering Maxwell demon.

Physical review. E·2022
Same author

[Characteristics of Nitrogen and Phosphorus Emissions in the Gufu River Small Watershed of the Three Georges Reservoir Area].

Huan jing ke xue= Huanjing kexue·2018
Same author

[Characteristics of Nitrogen and Phosphorus Concentration Dynamics in Natural Ditches Under an Irrigation-Drainage Unit in the Jianghan Plain].

Huan jing ke xue= Huanjing kexue·2018
Same author

miR-206 enhances nasopharyngeal carcinoma radiosensitivity by targeting IGF1.

The Kaohsiung journal of medical sciences·2017

Related Experiment Video

Updated: Oct 6, 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

14.7K

Unambiguous State Discrimination with Intrinsic Coherence.

Jin-Hua Zhang1, Fu-Lin Zhang2, Zhi-Xi Wang3

  • 1Department of Physics, Xinzhou Teacher's University, Xinzhou 034000, China.

Entropy (Basel, Switzerland)
|January 21, 2022
PubMed
Summary

We found that distinguishing pure-pure quantum states is better than pure-mixed or mixed-mixed states under equal fidelity. Coherence can hinder or help quantum state discrimination depending on the system

Keywords:
coherencemixed state discriminationquantum filtering

More Related Videos

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
15:58

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

Published on: December 3, 2013

5.9K
An Operant Intra-/Extra-dimensional Set-shift Task for Mice
08:35

An Operant Intra-/Extra-dimensional Set-shift Task for Mice

Published on: January 22, 2016

12.4K

Related Experiment Videos

Last Updated: Oct 6, 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

14.7K
Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
15:58

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

Published on: December 3, 2013

5.9K
An Operant Intra-/Extra-dimensional Set-shift Task for Mice
08:35

An Operant Intra-/Extra-dimensional Set-shift Task for Mice

Published on: January 22, 2016

12.4K

Area of Science:

  • Quantum Information Theory
  • Quantum State Discrimination
  • Quantum Optics

Background:

  • Quantum state discrimination is crucial for quantum information processing.
  • Understanding the role of coherence in state distinguishability is an ongoing challenge.
  • Previous studies have explored discrimination of pure states, but mixed state scenarios require further investigation.

Purpose of the Study:

  • To investigate the discrimination of pure-mixed (quantum filtering) and mixed-mixed quantum states.
  • To compare the optimal success probability of these discriminations with pure-pure state discrimination.
  • To analyze the impact of coherence on state discrimination across different system dimensions.

Main Methods:

  • Theoretical analysis of quantum state discrimination protocols.
  • Calculation of optimal success probabilities for various state pairs.
  • Comparison of discrimination schemes under equal fidelity conditions.
  • Extension of analysis to infinite-dimensional quantum systems.

Main Results:

  • The pure-pure state discrimination scheme demonstrates superior performance over pure-mixed and mixed-mixed schemes when fidelities are equal.
  • In quantum filtering, coherence in a single pure state is detrimental to discrimination in lower dimensions.
  • Conversely, symmetrically distributed coherence in mixed-mixed states aids discrimination in lower dimensions.
  • The influence of coherence on state discrimination can reverse in infinite-dimensional systems.

Conclusions:

  • The choice of quantum state discrimination strategy significantly impacts success probability.
  • Coherence plays a complex, dimension-dependent role in quantum state distinguishability.
  • Findings offer insights for optimizing quantum information processing protocols by managing coherence.