Video Experimental Relacionado
Updated: Jun 14, 2026
08:17
Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale
Published on: May 25, 2016
Control coherente de la dinámica cuántica: el sueño está vivo
Science (New York, N.Y.)
|March 12, 1993
Resumen
Los científicos están avanzando en el control de la dinámica cuántica utilizando el moldeado de pulsos láser ultrarrápido y los conceptos de control de ingeniería. Estos desarrollos proporcionan un marco teórico riguroso para futuras posibilidades en el control cuántico.
Área de la Ciencia:
- La física cuántica es la física cuántica.
- Química física es la química física de las cosas.
Sus antecedentes:
- El campo del control de la dinámica cuántica ha experimentado un progreso significativo.
- Los avances recientes han revitalizado la investigación en esta área.
Objetivo del estudio:
- Para resumir los avances experimentales y teóricos actuales en el control de la dinámica cuántica.
- Presentar extrapolaciones de futuras posibilidades en el campo.
Principales métodos:
- Revisión de los avances experimentales y teóricos.
- Concéntrese en las capacidades de modelado de pulsos láser ultrarrápidos.
- Aplicación de los conceptos de control de ingeniería para marcos teóricos.
Principales resultados:
- El modelado de pulsos láser ultra rápido se ha vuelto prácticamente alcanzable.
- Los conceptos de control de ingeniería proporcionan una base teórica rigurosa.
- El campo está preparado para avances significativos.
Conclusiones:
- La combinación de tecnología láser avanzada y robustos marcos teóricos permite nuevas posibilidades en el control de la dinámica cuántica.
- La investigación futura puede basarse en estos desarrollos para lograr un control preciso sobre los sistemas cuánticos.
Videos de Conceptos Relacionados
01:17Open and closed-loop control systems
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal and...
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal and...
01:16Conservation of Mass in Finite Cotrol Volume
The principle of conservation of mass is a fundamental law in fluid mechanics and is applied using the continuity equation. We apply the concept to a finite control volume to derive the continuity equation.
A system is defined as a collection of unchanging contents, and the conservation of mass states that a system's mass is constant.
A system is defined as a collection of unchanging contents, and the conservation of mass states that a system's mass is constant.
01:07Conservation of Mass in Fixed, Nondeforming Control Volume
The principle of conservation of mass is fundamental in fluid dynamics and is crucial for analyzing flow within fixed control volumes, such as pipes or ducts. This principle states that the total mass within a control volume remains constant unless altered by the inflow or outflow of mass through the control surfaces. This results in a vital relationship for steady, incompressible flow where the mass entering a system equals the mass leaving it.
In the case of a sewer pipe, which can be modeled...
In the case of a sewer pipe, which can be modeled...
01:14Conservation of Mass in Moving, Nondeforming Control Volume
Stormwater detention basins are essential in managing runoff during heavy rainfall, particularly in urban areas where impervious surfaces increase the risk of flooding. Understanding the conservation of mass in these systems allows engineers to optimize basin performance, balancing inflow, outflow, and water storage.
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
01:13Linear Momentum in Control Volume
Newton's second law is applied to obtain the linear momentum in a control volume in a fluid system. According to this law, the rate of change of linear momentum is equal to the sum of external forces acting on the system. When a control volume matches the fluid system at a specific moment, the forces acting on both are identical. Reynolds transport theorem helps explain this by breaking down the system's linear momentum into two components: the rate of change of linear momentum within the...
01:14Conservation of Energy in Control Volume
Consider a turbine operating under steady-flow conditions. The control volume is drawn around the turbine, with fluid entering at one point and exiting at another. The turbine extracts energy from the fluid, which performs mechanical work (shaft work).
For steady flow systems, the time derivative of the stored energy becomes zero since there is no energy accumulation within the control volume. This simplifies the energy equation to:
For steady flow systems, the time derivative of the stored energy becomes zero since there is no energy accumulation within the control volume. This simplifies the energy equation to: