IBM Q backends have many different names, see for example this link. We have for example processors called Melbourne, Tokyo, Armonk etc.

I am curious where these names come from? For example, I know that IBM headquarter is placed in Armonk, NY. But what about others? Is there any special logic behind naming IBM processors?

  • $\begingroup$ Each time I see their list of devices, I think of this. $\endgroup$
    – mavzolej
    Jun 3, 2020 at 11:50
  • 2
    $\begingroup$ The names are typically locations with an IBM research presence. $\endgroup$ Jun 6, 2020 at 14:03

1 Answer 1


The documentation states that "All quantum systems are given a city name, e.g., ibmq_johannesburg. This name does not indicate where the actual quantum system is hosted."


Some cities (e.g., Yorktown) host IBM Research centers.


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