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Videos de Conceptos Relacionados

Types Of Superconductors01:28

Types Of Superconductors

A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
Superconductor01:24

Superconductor

A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
Semiconductors01:22

Semiconductors

There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
Theory of Metallic Conduction01:17

Theory of Metallic Conduction

The conduction of free electrons inside a conductor is best described by quantum mechanics. However, a classical model makes predictions close to the results of quantum mechanics. It is called the theory of metallic conduction.
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
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...
Electromagnetic Waves in Matter01:30

Electromagnetic Waves in Matter

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 medium, μ.
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Updated: May 13, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Circuitos superconductores para la información cuántica: una perspectiva.

M H Devoret1, R J Schoelkopf

  • 1Department of Applied Physics, Yale University, New Haven, CT 06520, USA.

Science (New York, N.Y.)
|March 9, 2013
PubMed
Resumen

El rendimiento de los qubits superconductores ha avanzado significativamente, pero construir computadoras cuánticas con corrección de errores requiere superar nuevos desafíos arquitectónicos en la corrección de errores cuánticos.

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Área de la Ciencia:

  • La computación cuántica es la computación cuántica.
  • Circuitos superconductores en los circuitos superconductores.
  • La ciencia de la información cuántica es una ciencia cuántica.

Sus antecedentes:

  • El rendimiento de los qubits superconductores ha mejorado dramáticamente en la última década.
  • Los circuitos de qubits superconductores actuales aprovechan la superconductividad y el efecto Josephson, sin mostrar limitaciones físicas aparentes.
  • Sigue habiendo desafíos arquitectónicos significativos para escalar hasta muchos qubits.

Objetivo del estudio:

  • Para describir el campo emergente de la corrección de errores cuánticos para sistemas cuánticos complejos.
  • Discutir los desafíos en el diseño y operación de sistemas cuánticos activos y disipables que mantienen la coherencia.
  • Proponer futuras direcciones de investigación en el procesamiento de información cuántica superconductora.

Principales métodos:

  • Revisión de la tecnología actual de qubits superconductores.
  • Análisis de los requisitos arquitectónicos para la corrección de errores cuánticos.
  • Perspectivas especulativas sobre el futuro desarrollo de la computación cuántica.

Principales resultados:

  • Los qubits superconductores han mostrado notables ganancias de rendimiento.
  • No se han encontrado límites físicos fundamentales para el rendimiento de los qubits.
  • Se identifican nuevos desafíos arquitectónicos y de corrección de errores cuánticos para construir procesadores cuánticos a gran escala.

Conclusiones:

  • Dominar la corrección de errores cuánticos es crucial para desarrollar procesadores de información cuántica complejos y corregidos por errores.
  • Diseñar y operar sistemas cuánticos coherentes y disipables presenta una nueva frontera para los físicos.
  • El futuro de la computación cuántica depende de resolver estos problemas de arquitectura y corrección de errores.