Tech Lead in the quantum computing team @IBMresearch. Views are my own.
Ossining, NY
Joined May 2008
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blake_johnson retweeted
The team @qctrlHQ recently published exciting results on #quantum #optimization on a #qauntumcomputer - 120 qubit nontrivial Max-cut. It was amazing.
But why stop there? Here's 156 qubits, 100% AR (correct answer found) on @ibm Fez.
It just works.
blake_johnson retweeted
Earl I will make a few comments. The first is pushing average gate fidelity has not been the problem. In fact we regularly see above >99.9 in two qubit gate error. The hard part has been *stability* of two qubit gate error and cross-talk and both of these needed new technology.
blake_johnson retweeted
With a landmark paper published in @Nature, researchers from @IBM Quantum and @UCBerkeley are demonstrating the usefulness of the quantum computers we have today, opening the door to a new era in quantum computing—the era of quantum utility. ibm.co/3X5TAlc
blake_johnson retweeted
Published today in @Nature with our co-authors at @UCBerkeley, we have demonstrated for the first time that quantum computers with 100+ qubits can produce accurate results - and reach beyond leading classical approaches. ibm.co/3JfBZ4m
blake_johnson retweeted
We’re excited to announce the release of Qiskit 0.43! Check out the details in the blog and thread below! 👇
qisk.it/42HaXKs 1/7
blake_johnson retweeted
For Qiskit Runtime users, primitives have become a core piece of the platform, but learning to use them can be a tad overwhelming.
On this week’s blog, Qiskit developer advocate Abby Mitchell and Luciano Bello break down primitives for you. qisk.it/3Nf1oxS 1/7
💯 decreases reliance on calculators to actually solve problems in your head.
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The last couple years have convinced me that error mitigation is a lot more powerful than I previously thought. Last week, Sarah Sheldon and Youngseok Kim showed how error mitigation can enable dramatically larger circuits:
youtu.be/qsf_dZskFiI
A bit more on the dynamic circuits capability we just launched along with examples of already starting to exercise it.
youtu.be/03MczAYdUJU
blake_johnson retweeted
This might have gone under the radar a bit from yesterday but we’ve run a depth 36 circuit across an entire Eagle device by using error mitigation. This is why we are excited about the 100x100 challenge.
We're also making it easier than ever to take advantage of advanced error suppression and mitigation techniques. Read more about 'resilience levels' and how people are integrating Qiskit Runtime primitives in their applications in this blog post:
research.ibm.com/blog/qiskit…
Super proud of my team for this achievement. Getting here took heroic effort, but they did it and they keep finding new ways to squeeze out even more performance.
Dynamic circuits are live on IBM Quantum hardware! We hope to usher in a new phase of discovery of dynamic circuits by allowing exploration with real hardware.
research.ibm.com/blog/quantu…
blake_johnson retweeted
Excited to share our new work:
arxiv.org/abs/2210.17548
We show (w/ experiments included!) that the AKLT state can be deterministically prepared with a constant-depth circuit + mid-circuit measurements, a major speed-up over known methods that all require times that scale w size.
The next IBM Quantum challenge kicks off in a few weeks. This year's focus will be on using sampling and estimating primitives in algorithms. Check it out:
research.ibm.com/blog/quantu…
blake_johnson retweeted
Want to understand why the physics Nobel awarded today is such a big deal?
Alain Aspect, John F. Clauser and Anton Zeilinger were awarded the Nobel prize today for groundbreaking work in quantum technologies (1/?)
In celebration of Aspect, Clauser, and Zeilinger winning the #NobelPrize this year, you can experiment with the CHSH inequality (the C is for Clauser) on IBM quantum computers. See a tutorial here:
github.com/Qiskit/qiskit-ibm…