Ayuda
Ir al contenido

Dialnet


Quantum origins of space-time

  • Autores: Anil Ananthaswamy
  • Localización: New scientist, ISSN 0262-4079, Nº. 3157-3158, 2017, pág. 10
  • Idioma: inglés
  • Texto completo no disponible (Saber más ...)
  • Resumen
    • Chunjun Cao and Sean Carroll at the California Institute of Technology in Pasadena have tried to extract the kind of space-time we would find in the vicinity of our solar system from standard quantum mechanics. This type of space-time is one whose curvature is mostly flat, but with small undulations due to weak gravitational fields. To see if space-time can emerge from this quantum description, Cao and Carroll used an abstract mathematical concept called Hilbert space that can be split into different tiny parts, such that each one corresponds to a single point in 3D space. The researchers relate entanglement to geometry by further assuming that the greater the entanglement between two parts, the closer they are. The entire system is also assumed to be in some state of equilibrium, such that increasing the entanglement in one region decreases it elsewhere, and vice versa. Given a handful of such assumptions, Cao and Carroll have shown that the equations governing the dynamics of entanglement are similar to Einstein's equations of general relativity. In other words, space-time and gravity emerge from entanglement.


Fundación Dialnet

Dialnet Plus

  • Más información sobre Dialnet Plus

Opciones de compartir

Opciones de entorno