Want to try a big quantum computer but don’t have the cash? Google wants to up your simulation game with their “Quantum Virtual Machine” that you can use for free.
On the face of it, it sounds like marketing-speak for just another quantum simulator. But if you read the post, it sounds like it attempts to model effects from a real Sycamore processor including qubit decay and dephasing along with gate and readout errors. This forms what Google calls “processor-like” output, meaning it is as imperfect as a real quantum computer.
If you need more qubits than Google is willing to support, there are ways to add more computing using external compute nodes. Even if you have access to a real machine of sufficient size, this is handy because you don’t have to wait in a queue for time on a machine. You can work out a lot of issues before going to the real computer.
This couldn’t help but remind us of the old days when you had to bring your cards to the central computer location and wait your turn only to find out you’d made a stupid spelling mistake that cost you an hour of wait time. In those days, we’d “desk check” a program carefully before submitting it. This system would allow a similar process where you test your basic logic flow on a virtual machine before suffering the wait time for a real computer to run it.
Of course, if you really need a quantum computer, the simulation is probably too slow to be practical. But at least this might help you work out the kinks on smaller problems before tackling the whole enchilada. What will you do with a quantum computer? Tell us in the comments.
Google, of course, likes its own language, Cirq. If you want a leg up on general concepts with a friendly simulator, try our series.
18 thoughts on “Google Quantum, Virtually”
Dear computer, how do I maximise my ad revenue?
“Initiate a buffer overflow in the receiving browser, execute code to identify financial information, and transfer money to your account.”
Geez. Another winner graphic. Kim is good.
Sure… but that’s the same header graphic they use for all quantum computing related articles that don’t have related pictures. Here it is back in 2018: https://hackaday.com/2018/01/24/quantum-weirdness-in-your-browser/
It would also serve well for articles relating to The Cthulhu Mythos, or even government and corporate overreach. Nothing beats a suitably ambiguous visual metaphor for reusability.
I’d love to see another Omnibus issued that features more of his work
As this is Hackaday, I build a Quantum computer in my workshop.
Or did I?
Maybe you could open the door and check?
If my understanding of quantum computers is correct, we might be able to simply open the doors of our own workshops to see if he built a quantum computer… entanglement and all that.
Last I checked, there is two in my own workshop.
However, one always requires a screwdriver or a pair of pliers or the like. Why else would the tool one used 20 seconds ago suddenly be on the other side of the room.
Well…. Yes and No…
I have an analog quantum computer simulating all of the particles in a slightly damaged outdated laptop *in real time*.
with “processor-like” output!
I wonder when some one will program doom to run on it
Maybe a quantum computer could be taught to have and express feelings
So this is just a qubit simulation? I like the idea of this as a tool for learning. Maybe it needs a marketing tweek. Does I to accept input as tweets.. asking for a friend.
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