IBM ibmq_armonk

IBM · Apache-2.0 last capture 2021-03-15

ibmq_armonk is a 1-qubit IBM quantum computer, with records from 2020 to 2021.

The newest record is from 15 March 2021, so the machine may since have been upgraded or retired.

Every figure below is the device's latest measurement of that metric, with its own date and source. See how the whole field is progressing →

Median T1 (µs)
IBM · Apache-2.0
182.66

How long a typical qubit holds its state before it decays, in microseconds. Longer leaves more time to compute.

Better than 72% of 67 other devices with this measurement
Measured 2021-03-15
Median T2 (µs)
IBM · Apache-2.0
237.86

How long a typical qubit keeps its delicate quantum phase, in microseconds.

Better than 90% of 67 other devices with this measurement
Measured 2021-03-15
Median readout error
IBM · Apache-2.0
0.024
fails about 1 in 42

How often reading a typical qubit's value at the end gives the wrong answer.

Better than 43% of 67 other devices with this measurement
Measured 2021-03-15
Qubits
IBM · Apache-2.0
1

Physical qubits on the device. More only helps if they are good enough to use together.

Measured 2021-03-15

History

Each point is one dated measurement (7 snapshots in total).

Median T1 (µs)
Median T2 (µs)
Median readout error
Qubits

Provenance

Source
IBM · Apache-2.0
Licence
Apache-2.0 · Qiskit fake backend calibration snapshot
Raw redistributable
yes
Captured
2021-03-15T04:40:24
Raw source (latest snapshot)
https://github.com/Qiskit/qiskit-ibm-runtime/blob/2a396172c25aa2971e99b434b430177745878a53/qiskit_ibm_runtime/fake_provider/backends/armonk/props_armonk.json

Cite this page

@misc{provenova_ibm_ibmq_armonk,
  title        = {IBM ibmq_armonk — calibration & benchmark history},
  howpublished = {\url{https://provenova.net/hardware/ibm/ibmq_armonk}},
  publisher    = {Provenova},
  note         = {accessed 2026-10-20}
}

Compare with

vs ibm ibm_aachen 3 shared metrics vs ibm ibm_algiers 3 shared metrics vs ibm ibm_auckland 3 shared metrics vs ibm ibm_berlin 3 shared metrics vs ibm ibm_boston 3 shared metrics vs ibm ibm_brisbane 3 shared metrics vs ibm ibm_brussels 3 shared metrics vs ibm ibm_cairo 3 shared metrics

Data: real IBM device calibration published in Qiskit's fake backends (Apache-2.0). Rankings on the live leaderboard.