Chinese Researchers Achieve Quantum Entanglement Record

I visited USTC several years ago, (2014) and in this time they have basically doubled the number of qubits they can entangle, so this is a great step forward. At around ~100 qubits quantum computing becomes very useful, so maybe we won't have to wait too long.

Re: Chinese Researchers Achieve Quantum Entanglement Record

#5

Post by misterprime » Tue, Jul 17, 2018, 4:50 PM UTC

downrightmike wrote: post #2

Even neater is that they are using quantum entanglement in radar to detect stealth planes: https://www.popsci.com/china-quantum-radar-detects-stealth-p...

From the article: they are planning to do this, and hopeful that it will work. Not actually using it yet.

Re: Chinese Researchers Achieve Quantum Entanglement Record

#6

Post by ssdd » Tue, Jul 17, 2018, 4:51 PM UTC

foxes wrote: post #4

I visited USTC several years ago, (2014) and in this time they have basically doubled the number of qubits they can entangle, so this is a great step forward. At around ~100 qubits quantum computing becomes very useful, so maybe we won't have to wait too long.

That's great. Now next thing that needs to be solved is to make this tech available for general public use just like computers are these days. Problems that are waiting to be solved by it are very large and of huge impact.

Re: Chinese Researchers Achieve Quantum Entanglement Record

#7

Post by barbegal » Tue, Jul 17, 2018, 4:56 PM UTC

downrightmike wrote: post #2

Even neater is that they are using quantum entanglement in radar to detect stealth planes: https://www.popsci.com/china-quantum-radar-detects-stealth-p...

I understand the core concept of quantum radar but does it actually work in practice as a radar? i.e. you can resolve targets with a small range and angular resolution.

Re: Chinese Researchers Achieve Quantum Entanglement Record

#8

Post by reaperducer » Tue, Jul 17, 2018, 4:59 PM UTC

ssdd wrote: post #6

foxes wrote: post #4

I visited USTC several years ago, (2014) and in this time they have basically doubled the number of qubits they can entangle, so this is a great step forward. At around ~100 qubits quantum computing becomes very useful, so maybe we won't have to wait too long.

That's great. Now next thing that needs to be solved is to make this tech available for general public use just like computers are these days. Problems that are waiting to be solved by it are very large and of huge impact.

Problems that are waiting to be solved by it are very large and of huge impact

I know virtually nothing about quantum computing, so can you give some examples? Whenever I've asked anyone who seemed to know anything about the field, all they can come up with is weather forecasting and simulating nuclear explosions. Not exactly "general use," as you put it.

In the back of my mind, I know that quantum computing is a big deal, and we're in ENIAC days with it. But I don't have a good understanding of where it goes or why.

Re: Chinese Researchers Achieve Quantum Entanglement Record

#9

Post by ArtWomb » Tue, Jul 17, 2018, 4:59 PM UTC

Congrats! US House science committee also set to pass national initiative in quantum tech with on order of $1B funding:

National Quantum Initiative - Action Plan

https://www.lightourfuture.org/getattachment/85484dca-465a-4...

Re: Chinese Researchers Achieve Quantum Entanglement Record

#10

Post by chrisweekly » Tue, Jul 17, 2018, 5:03 PM UTC

reaperducer wrote: post #8

ssdd wrote: post #6

Earlier quoted context omitted.

That's great. Now next thing that needs to be solved is to make this tech available for general public use just like computers are these days. Problems that are waiting to be solved by it are very large and of huge impact.

Problems that are waiting to be solved by it are very large and of huge impact I know virtually nothing about quantum computing, so can you give some examples? Whenever I've asked anyone who seemed to know anything about the field, all they can come up with is weather forecasting and simulating nuclear explosions. Not exactly "general use," as you put it. In the back of my mind, I know that quantum computing is a big…

ENIAC?