Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Chirality in Nature02:30

Chirality in Nature

13.8K
Chirality is the most intriguing yet essential facet of nature, governing life’s biochemical processes and precision. It can be observed from a snail shell pattern in a macroscopic world to an amino acid, the minutest building block of life. Most of the snails around the world have right-coiled shells because of the intrinsic chirality in their genes. All the amino acids present in the human body exist in an enantiomerically pure state, except for glycine - the sole achiral amino acid.
13.8K
Chirality at Nitrogen, Phosphorus, and Sulfur02:30

Chirality at Nitrogen, Phosphorus, and Sulfur

5.9K
Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
5.9K
Prochirality02:05

Prochirality

3.9K
The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...
3.9K
Molecules with Multiple Chiral Centers02:25

Molecules with Multiple Chiral Centers

12.1K
Molecules that possess multiple chiral centers can afford a large number of stereoisomers. For instance, while some molecules like 2-butanol have one chiral center, defined as a tetrahedral carbon atom with four different substituents attached, several molecules like butane-2,3-diol have multiple chiral centers. A simple formula to predict the number of stereoisomers possible for a molecule with n chiral centers is 2n. However, there can be a lower number where some of the stereoisomers are...
12.1K
Stereoisomerism of Cyclic Compounds02:33

Stereoisomerism of Cyclic Compounds

9.2K
In this lesson, we delve into the role of ring conformation and its stability, which determines the spatial arrangement and, consequently, the molecular symmetry and stereoisomerism of cyclic compounds. 1,2-Dimethylcyclohexane is used as a case study to evaluate the possible number of stereoisomers. Here, given the multiple (n = 2) chiral centers, there are 2n = 4 possible configurations that lack a plane of symmetry, as the ring skeleton exists in a non-planar chair conformation. In addition,...
9.2K
Chirality02:25

Chirality

25.2K
Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
25.2K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Long-range interacting particles on a helix: A statistical and correlation analysis of equilibrium configurations.

Physical review. E·2025
Same author

Nonlinear Stage of Modulational Instability in Repulsive Two-Component Bose-Einstein Condensates.

Physical review letters·2025
Same author

In Situ Observation of Nonpolar to Strongly Polar Atom-Ion Collision Dynamics.

Physical review letters·2024
Same author

Compression-induced crossovers for the ground state of classical dipole lattices on a Möbius strip.

Physical review. E·2024
Same author

Experimental Realization of the Peregrine Soliton in Repulsive Two-Component Bose-Einstein Condensates.

Physical review letters·2024
Same author

Hidden Symmetries in Acoustic Wave Systems.

Physical review letters·2023

Video Experimental Relacionado

Updated: Sep 10, 2025

A Micropatterning Assay for Measuring Cell Chirality
08:07

A Micropatterning Assay for Measuring Cell Chirality

Published on: March 11, 2022

2.4K

Manipulación estatal protegida quiralmente mediante la sintonización de estadísticas unidimensionales

F Theel1, M Bonkhoff2, P Schmelcher1,3

  • 1University of Hamburg, Center for Optical Quantum Technologies, Department of Physics, Luruper Chaussee 149, 22761 Hamburg, Germany.

Physical review letters
|August 27, 2025
PubMed
Resumen

La simetría quiral en el modelo anyon-Hubbard protege estados únicos de energía cero. La evolución adiabática revela las fases de Berry y los patrones del tablero de ajedrez, ofreciendo nuevos métodos de control.

Más Videos Relacionados

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

14.6K
Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy
10:28

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy

Published on: May 27, 2018

8.9K

Videos de Experimentos Relacionados

Last Updated: Sep 10, 2025

A Micropatterning Assay for Measuring Cell Chirality
08:07

A Micropatterning Assay for Measuring Cell Chirality

Published on: March 11, 2022

2.4K
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

14.6K
Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy
10:28

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy

Published on: May 27, 2018

8.9K

Área de la Ciencia:

  • Física de la materia condensada
  • Mecánica Cuántica
  • Mecánica estadística

Sus antecedentes:

  • Los modelos típicos de celosía rompen la simetría quiral.
  • El modelo de anyon-Hubbard es una excepción, con interacciones estadísticas.
  • La simetría quiral protege un subespacio degenerado de energía cero en este modelo.

Objetivo del estudio:

  • Para explorar las propiedades de los estados de energía cero quiralmente protegidos en el modelo de anyon-Hubbard.
  • Investigar la evolución adiabática de los parámetros estadísticos.
  • Para demostrar un protocolo para preparar y controlar estos estados cuánticos únicos.

Principales métodos:

  • Evolución adiabática del parámetro estadístico.
  • Análisis de las fases y holonomías de Berry.
  • Observación y validación de las densidades de partículas N y de los patrones del tablero de ajedrez.

Principales resultados:

  • Se encontraron fases y holonomías no triviales de Berry en el subespacio quiral.
  • Se observaron patrones de tablero de ajedrez estacionarios en las densidades de partículas N.
  • Estos patrones se conservan bajo manipulación adiabática.

Conclusiones:

  • La simetría quiral ofrece una protección robusta para los estados de energía cero en el modelo de anyon-Hubbard.
  • La manipulación adiabática proporciona un enfoque complementario para cualquier trenzado.
  • Se presenta un protocolo explícito para preparar, observar y controlar estos estados.