Video Experimental Relacionado
Updated: Aug 12, 2025
07:56
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
8.6K
Dinámica colectiva super y subradiante entre emisores cuánticos ópticos distantes
Alexey Tiranov1, Vasiliki Angelopoulou1, Cornelis Jacobus van Diepen1
1Center for Hybrid Quantum Networks (Hy-Q), The Niels Bohr Institute University of Copenhagen, DK-2100 Copenhagen Ø, Denmark.
Science (New York, N.Y.)
|January 26, 2023
Resumen
Los investigadores lograron el acoplamiento de emisores cuánticos de larga distancia en guías de onda nanofotónicas. Este avance permite el control de la emisión super y subradiante para el procesamiento de información cuántica escalable.
Área de la Ciencia:
- La óptica cuántica
- La nanofotónica
- Emisores cuánticos de estado sólido
Sus antecedentes:
- La emisión de fotones es clave para la interacción luz-materia y las tecnologías cuánticas.
- El control de múltiples emisores cuánticos es crucial pero desafiante debido al acoplamiento de corto alcance.
Objetivo del estudio:
- Para lograr y estudiar el acoplamiento radiativo dipolo-dipolo distante entre emisores cuánticos.
- Explorar métodos para controlar la dinámica de las emisiones colectivas.
Principales métodos:
- Incorporación de pares de emisores cuánticos ópticos de estado sólido en una guía de ondas nanofotónica.
- Probando dinámicamente la respuesta radiativa colectiva.
Principales resultados:
- Se ha demostrado el acoplamiento radiativo dipolo-dipolo distante.
- Emisión superradiante y subradiante observada y controlada.
- Técnicas de excitación identificadas para gestionar la dinámica de las emisiones.
Conclusiones:
- Este trabajo es un paso fundamental para el procesamiento de información cuántica escalable.
- Permite aplicaciones multimieter al superar las limitaciones de distancia de acoplamiento.
Videos de Conceptos Relacionados
01:10Dual Nature of Electromagnetic (EM) Radiation
2.2K
Electromagnetic (EM) radiation consists of electric and magnetic field components oscillating in planes perpendicular to each other and mutually perpendicular to radiation propagation through space. EM radiation can be classified as a wave, characterized by the properties of waves such as wavelength (denoted as λ) and frequency (represented by ν).
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the...
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the...
2.2K
01:12Interaction of EM Radiation with Matter: Spectroscopy
1.9K
Electromagnetic (EM) radiation can be considered an oscillating electric and magnetic field propagating through a medium that can interact with matter in its path. The electric field in the radiation can interact with electrical charges in the atoms or molecules in the matter. On the other hand, the magnetic field can interact with the magnetic field in the atomic nucleus. The study of the interaction between electromagnetic radiation and matter is termed spectroscopy. Spectroscopy is the study...
1.9K
01:10Generating Electromagnetic Radiations
3.3K
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
3.3K
01:30Electromagnetic Waves in Matter
3.1K
Electromagnetic waves can travel in the vacuum as well as in matter. For example light, which is an electromagnetic wave, can travel through air, water, or glass.
Consider the electromagnetic wave passing through a dielectric medium. In such a case, Maxwell's equations get modified. In Ampere's law, ε0 , the dielectric permittivity of free space is replaced with ε, the permittivity of dielectric. Also, the vacuum permeability μ0 is replaced by the permeability of the...
Consider the electromagnetic wave passing through a dielectric medium. In such a case, Maxwell's equations get modified. In Ampere's law, ε0 , the dielectric permittivity of free space is replaced with ε, the permittivity of dielectric. Also, the vacuum permeability μ0 is replaced by the permeability of the...
3.1K
01:37Super-resolution Fluorescence Microscopy
7.1K
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
7.1K
01:14Molecular Spectroscopy: Absorption and Emission
2.4K
Molecules possess discrete energy levels called quantum states. Unlike atoms, which have simpler energy levels, molecules possess additional rotational and vibrational energy levels. Each energy level is separated by an energy gap, with the gaps between adjacent electronic, vibrational, and rotational levels varying significantly. The three types of energy levels in a diatomic molecule are shown in Figure 1.
2.4K