Google’s quantum computing plans threatened, IBM

In summary, IBM has developed a way to simulate quantum computers with 56 qubits on a non-quantum supercomputer, a task previously thought to be impossible. This development could potentially change the dynamic in the race for quantum supremacy, as it allows for complex quantum calculations to be checked and verified in the future. The simulation runs a billion times slower than a true 56-qubit quantum computer, but it has the potential to expand and be useful for software developers if made available online. This development also raises the question of the difference between emulation and simulation in quantum computing.
  • #1
Spinnor
Gold Member
2,226
431
"Just when it was looking like the underdog, classical computing is striking back. IBM has come up with a way to simulate quantum computers that have 56 quantum bits, or qubits, on a non-quantum supercomputer – a task previously thought to be impossible. The feat moves the goalposts in the fight for quantum supremacy, the effort to outstrip classical computers using quantum ones. ..."

From, https://www.newscientist.com/articl...-computing-plans-threatened-by-ibm-curveball/
 
  • Like
Likes StoneTemplePython, FactChecker, Drakkith and 1 other person
Computer science news on Phys.org
  • #2
They did mention in the article that the simulation is a billion times slower than what a true 56qubit quantum computer would be.

The interesting thing is that IBM found a way to reduce the memory and to parallelize the simulation making it useful to check complex quantum calculations in the future. The memory reduction means that they can probably continue to expand the simulation useful for software developers if they make it available online like they do now with their 5 qubit machine.

A few years back UT had developed a classical system to emulate a quantum computer.

https://phys.org/news/2015-05-quantum-emulated-classical.html
 
  • Like
Likes Spinnor
  • #3
Free 16 bit quantum computer emulator,

http://algassert.com/quirk

The tutorial,



I guess I need to lear the difference between emulation and simulation.
 
Last edited:
  • Like
Likes jedishrfu
  • #4
After I read the article, I get a different picture of what's going on than what the headline suggest.The article does tell us that it runs a billion times slower than what a theoretical 56 qubit would do. It sounds (to me) like they want to use the classical computer to check answers from quantum computer rather than "smash the competition"
 
  • Like
Likes jedishrfu
  • #5
Checking answers is often easier than doing the initial computation. Prime factorization is the typical example here. A classical computer can easily check if a number with 2 million digits has been factorized correctly (your home computer can do that in seconds), but it has no way of doing that factorization in general.
 
  • Like
Likes scottdave

Related to Google’s quantum computing plans threatened, IBM

1. What are Google's quantum computing plans?

Google's quantum computing plans involve developing a powerful quantum computer that can solve complex problems more efficiently than traditional computers.

2. How is IBM threatening Google's quantum computing plans?

IBM is threatening Google's quantum computing plans by claiming that Google's quantum computer has not achieved quantum supremacy, meaning it has not yet solved a problem that is impossible for traditional computers to solve.

3. What is quantum supremacy?

Quantum supremacy is the point at which a quantum computer can solve a problem that is impossible for traditional computers to solve in a reasonable amount of time.

4. Why is quantum supremacy important?

Quantum supremacy is important because it signifies a major breakthrough in computing technology and has the potential to significantly impact fields such as cryptography, drug discovery, and machine learning.

5. How is Google responding to IBM's claims?

Google is responding to IBM's claims by stating that their quantum computer has achieved quantum supremacy and that IBM's arguments are based on misleading assumptions and calculations.

Similar threads

  • Computing and Technology
Replies
16
Views
3K
  • Computing and Technology
Replies
6
Views
2K
  • Programming and Computer Science
Replies
4
Views
687
  • Computing and Technology
Replies
4
Views
2K
Replies
42
Views
3K
Replies
1
Views
1K
  • Quantum Physics
Replies
8
Views
1K
  • STEM Academic Advising
Replies
7
Views
1K
  • Programming and Computer Science
Replies
9
Views
2K
Replies
8
Views
3K
Back
Top