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Videos de Conceptos Relacionados

The de Broglie Wavelength02:32

The de Broglie Wavelength

In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
The Uncertainty Principle04:08

The Uncertainty Principle

Werner Heisenberg considered the limits of how accurately one can measure properties of an electron or other microscopic particles. He determined that there is a fundamental limit to how accurately one can measure both a particle’s position and its momentum simultaneously. The more accurate the measurement of the momentum of a particle is known, the less accurate the position at that time is known and vice versa. This is what is now called the Heisenberg uncertainty principle. He mathematically...
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra. Schrödinger...
Electron Behavior01:09

Electron Behavior

Electrons are negatively charged subatomic particles attracted to and orbit around the positively-charged nucleus of an atom. They reside in spaces associated with energy levels called shells and are further organized into subshells and orbitals within each shell.
Electrons Orbit the Nucleus
Electrons are found in specific locations outside of the nucleus. The shell in which an electron resides indicates the general energy level of the electron: those closer to the nucleus have less energy,...
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)01:15

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...
Understanding Consciousness01:23

Understanding Consciousness

Consciousness can be defined as the state of being aware of and able to think about one's existence, sensations, and surroundings. It encompasses two major components: awareness and arousal. Awareness pertains to the recognition of environmental stimuli and internal states. At the same time, arousal refers to the physiological readiness to engage with these stimuli, which varies significantly between states like sleep and wakefulness.
Sleep, a crucial state, is characterized by reduced physical...

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Updated: Jun 28, 2026

Optical Recording of Suprathreshold Neural Activity with Single-cell and Single-spike Resolution
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QuATON: entrenamiento consciente de la cuantificación de neuronas ópticas

Hasindu Kariyawasam, Ramith Hettiarachchi, Quansan Yang

    Optics express
    |February 18, 2026
    PubMed
    Resumen

    Desarrollamos un nuevo método de entrenamiento para procesadores ópticos fabricados en 3D. Este enfoque tiene en cuenta los límites de fabricación, creando redes difractivas robustas con pesos cuantificados para una computación de alta velocidad.

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    Área de la Ciencia:

    • Fotónica y computación óptica
    • Microfabricación y nanofotónica
    • Aprendizaje automático para sistemas físicos

    Sus antecedentes:

    • Los procesadores ópticos ofrecen operaciones lineales de alta velocidad y alta dimensionalidad.
    • La microfabricación 3D permite diseños complejos de procesadores ópticos.
    • La precisión limitada en la fabricación conduce a una desadaptación del modelo debido a los pesos ópticos cuantificados.

    Objetivo del estudio:

    • Proponer un marco de entrenamiento consciente de la cuantificación para procesadores ópticos fabricados en 3D.
    • Abordar la desadaptación del modelo causada por los pesos ópticos cuantificados en redes difractivas.
    • Permitir el diseño de procesadores ópticos robustos a pesar de las restricciones de fabricación.

    Principales métodos:

    • Desarrollamos un marco de entrenamiento consciente de la cuantificación.
    • Integramos las restricciones físicas de la microfabricación en el proceso de entrenamiento.
    • Demostramos numéricamente el marco utilizando redes difractivas.

    Principales resultados:

    • Diseñamos procesadores ópticos de última generación utilizando redes difractivas.
    • Logramos diseños robustos a pesar de los parámetros aprendibles cuantificados.
    • Validamos el enfoque para múltiples tareas computacionales.

    Conclusiones:

    • El marco propuesto permite la fabricación robusta en 3D de procesadores ópticos.
    • El entrenamiento consciente de la cuantificación supera las limitaciones de precisión en la microfabricación.
    • Sienta las bases para futuros avances en hardware de computación óptica.