To achieve this task, the researchers used a crystal doped with rare-earth ions and cooled it to -270 Celsius.

Yeah, we all have liquid helium and microwave cooling apparatus in our closets so we can run our computers at temperatures colder than the surface of pluto.

This is sure to take off.

Quantum networks in a few years? I am not sure if it was Dr. John E. Kelly III with IBM or if it was someone else at IBM that said quantum computers would not happen in their lifetime. He was about 55 years old a few years ago. I wonder what his estimate is now?
When I read the article about him I thought he would someday restate that remark again with a different time line.
Anyone out there who has a better time line for the arrival of quantum computers?

To achieve this task, the researchers used a crystal doped with rare-earth ions and cooled it to -270 Celsius.

An important feature is that this memory device uses almost entirely standard fabrication technologies.

huh?

To achieve this task, the researchers used a crystal doped with rare-earth ions and cooled it to -270 Celsius.
An important feature is that this memory device uses almost entirely standard fabrication technologies.

huh?

They did say ALMOST entirely standard fabrication technologies.

my friend a quantum network and a quantum computer are two different things -- one refers to the ability to send information securely the other has to do with mimicking the quantum world for simulaitons. Networks are going to be easier to build than computers. And even then - most likely these giant machinges will be strictly for scientists -- but hey they said that about the computer before the advent of the PC

I am quite familiar with the difference between quantum networks and quantum computers. I have an extensive background in security and my interest range from residential security to mind hacking. You might want to check out an article released today titled: First silicon entanglement will aid quantum computing.

I was curious when people thought quantum computers would become available? I believe future computers will be intertwined with quantum computers and classic computers, and that is only the beginning!

I find it very interesting to see what people have to say when future technologies will become available.

wonder what the "rare-earth ion" could be.