Computación cuántica... les recomiendo verlo

[ricardo]

 

[juanca]

Asombroso como se va aumentando el conocimiento en estos tiempos ,Pego artículo de Nukas.

https://naukas.com/2019/11/23/cartografiando-la-ignorancia-292/

Abrir " si Einstein leyese esto,,,," Quntum Physics our study suggets...Poner el traductor y leer detenidamente,

[RodyG]

Muy bueno el video  !!

[fsr]

Hay que darle tiempo a ver que pasa. Esto está todo en una etapa de investigación, y por lo visto sus aplicaciones son limitadas, tienen problemas que solucionar, y no se comprende totalmente su funcionamiento:

 

https://www.dw.com/en/quantum-computing-is-it-really-all-its-cracked-up-to-be/a-51118334

 

"The point is, Michielsen says, with these devices there are still systematic errors that the experts are currently unable to resolve. These machines are also extremely sensitive and any unexpected stimuli can hinder results.

In fact, there are many aspects of quantum computing that still remain a mystery. 

For quantum scientists, it's imperative that such mysteries are unravelled in order to make progress. "One cannot build a lot of applications on mysteries," says Michielsen.

"Of course, many things in the past have been developed without us understanding the physics behind it." She gives the example of the steam engine — which was invented without creators understanding every detail of the way it functioned. Similarly with quantum computing, Michielsen says, we don't have to unlock all the secrets of this complex science to advance, but the more we know the better.

 

So what can quantum computers do today?

It depends on what kind of quantum computer you are talking about. The most common gate-based machine, the ones used by IBM and Google, don't have a lot of applications — yet. The calculation that Sycamore carried out last month using 53 superconducting qubits isn't useful in daily life. At the moment these machines can do very simple algorithms.

"We can add numbers," says Professor Michielsen. "One can factorize small numbers — so that's always this prime factorization. One can also simulate small molecules, but this isn't reliably accurate."

The other main type of quantum computer is a quantum annealer. As with D-Wave's machine, annealing allows for more prototype applications. These machines have 2,000 qubits and work differently to the way gate-based computers operate, but still use quantum effects.

Using D-Wave's technology, Volkswagen carried out research on traffic flow optimization in Beijing.  Researchers at The Roswell Park Cancer Institute in Buffalo, New York, used quantum annealing to optimise the amount of intensity-modulated radiotherapy  that could be given to two prostate cancer patients.

In 2018, Qx Branch, a data analytics and quantum computing company, used quantum annealing for machine learning to predict the outcome of the 2016 US Presidential race."