Video Experimental Relacionado
Updated: Jul 16, 2026

12:35
Atomically Traceable Nanostructure Fabrication
Published on: July 17, 2015
La coherencia con los átomos
1Department of Physics, Stanford University, Stanford, CA 94305-4060, USA.
Resumen
Los avances recientes permiten un control preciso sobre el movimiento atómico, ofreciendo nuevos conocimientos sobre los fenómenos cuánticos y permitiendo sensores de fuerza ultra-sensibles.
Área de la Ciencia:
- Física atómica es la física atómica.
- La mecánica cuántica es la mecánica cuántica.
- Tecnología de Sensores Tecnología de Sensores
Sus antecedentes:
- Avances significativos en la manipulación y control del movimiento atómico en la última década.
- El control atómico tiene implicaciones científicas y tecnológicas prácticas fundamentales.
Objetivo del estudio:
- Explorar nuevas perspectivas para el estudio de las transiciones cuánticas de fase.
- Para investigar estados cuánticos altamente entrelazados.
- Desarrollar una nueva generación de sensores de fuerza altamente sensibles y precisos.
Principales métodos:
- Control coherente del movimiento atómico.
- Manipulación experimental de los estados atómicos.
- Desarrollo de nuevas arquitecturas de sensores.
Principales resultados:
- Nuevos conocimientos experimentales sobre las transiciones cuánticas de fase.
- Demostración de estados cuánticos altamente entrelazados.
- Perspectivas para sensores de fuerza sensibles sin precedentes.
Conclusiones:
- El control atómico preciso es una herramienta poderosa para la investigación cuántica fundamental.
- Este control allana el camino para tecnologías avanzadas de sensores con alta sensibilidad y precisión.
Videos de Conceptos Relacionados
Atomic Structure
All matter is composed of atoms, the smallest individual units of elements. Each atom is made up of three subatomic particles: protons, neutrons, and electrons. Together, these three particles account for the mass and the charge of an atom.The History of Atomic TheoryThe first person to propose that everything on Earth is made up of tiny particles was the Greek philosopher Democritus, around 450 B.C. He used the term atomos, Greek for “indivisible,” from which the modern term “atom” is derived.
Atomic Mass
Atoms — and the protons, neutrons, and electrons that compose them — are extremely small. For example, a carbon atom weighs less than 2 × 10−23 g. When describing the properties of tiny objects such as atoms, we use appropriately small units of measure, such as the atomic mass unit (amu). The amu was originally defined based on hydrogen, the lightest element, then later in terms of oxygen. Since 1961, it has been defined with regard to the most abundant isotope of carbon, atoms of which are...
Atomic Radii and Effective Nuclear Charge
The elements in groups of the periodic table exhibit similar chemical behavior. This similarity occurs because the members of a group have the same number and distribution of electrons in their valence shells.
Nuclear Stability
Protons and neutrons, collectively called nucleons, are packed together tightly in a nucleus. With a radius of about 10−15 meters, a nucleus is quite small compared to the radius of the entire atom, which is about 10−10 meters. Nuclei are extremely dense compared to bulk matter, averaging 1.8 × 1014 grams per cubic centimeter. If the earth’s density were equal to the average nuclear density, the earth’s radius would be only about 200 meters.
To hold positively charged protons together in the...
To hold positively charged protons together in the...
Atomic Nuclei: Nuclear Magnetic Moment
All atomic nuclei are positively charged. When they have a nonzero spin, they behave like rotating charges. As a consequence of their charge and spin, these nuclei generate a magnetic field (B). This, in turn, gives rise to a magnetic moment (μ), which is randomly oriented in the absence of an external magnetic field. When an external magnetic field (B0) is applied, the magnetic moment vectors can align with the field or against it in 2 + 1 orientations. A hydrogen nucleus, which is just a...
Atomic Structure
The Greek philosopher Democritus proposed that everything on Earth is made up of tiny particles called atomos, Greek for "indivisible," from which the modern term "atom" is derived. In the 19th century, John Dalton proposed the atomic theory that is still largely correct today. He put forth five postulates to explain how atoms made up the world around us. (1) All matter is composed of infinitely small particles or atoms. (2) All atoms of a given element are identical to one another and (3) are...

