Quantum Bayesian Networks

November 4, 2019

The Empire Strikes Back

Filed under: Uncategorized — rrtucci @ 4:56 pm


In the giant ship wake of Google’s announcement that it has achieved Quantum Supremacy, Microsoft promised today to roll out in the next few months a cloud service called Azure Quantum (typical unoriginal Microsoft name), with access to real qc hardware by IonQ (ion traps), Honeywell (ion traps) and Quantum Circuits (superconducting Josephson Junctions). However, they are mum about when, if ever, they will offer access to the topological qc that they have been trying to build for the last 20 years.

Quantum Azure will apparently use mostly Q# (a.k.a. Qrap#) software, guessing from the fact that only Qrap# is mentioned in the press releases. One can only hope that they will allow use of other languages too, such as Pyquil, Cirq, Qiskit, and Qubiter (the best wine for last, like in the Bible), and then gradually dump Qrap#.

I reported about this on Reddit


  1. This sounds like really big news, but some friends have pointed out to me that they don’t think neither of Microsoft’s partners, IonQ (ion traps), Honeywell (ion traps) and Quantum Circuits Inc. (superconductors) have hardware that is ready to be run by the public in the next 3 months. I suspect my friends are right. If so, Azure Quantum is, once again, just Q# with no qc hardware to run on, for the foreseeable future, an empty Microsoft promise. I think a new quantum cloud service backed with real qc hardware is much more likely to come first from Google than from Microsoft

    Comment by rrtucci — November 4, 2019 @ 6:49 pm

  2. One can’t help wondering how restrictive is the contract these 3 hardware companies have signed with Microsoft, and how much money Microsoft paid for this. Will the 3 companies be forced to use Q# exclusively or can they also use other quantum languages? I would guess the latter. Can these 3 companies sign up with other cloud services, like the Amazon, IBM or Google clouds? I would guess yes.

    Comment by rrtucci — November 5, 2019 @ 1:02 am

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