IBM Quantum systems overview

The first and foremost cloud-based quantum computing systems
and high-performance simulators for research, industry, and education.

Since 2016, when it made the world’s first quantum computer available through IBM Cloud®, IBM Quantum Experience has remained the premier place for researchers, industry professionals, developers, and students to access cutting edge quantum hardware.

IBM Quantum currently hosts a fleet of 20 quantum systems, offering access through our open and premium systems. All quantum systems deployed by IBM Quantum are based on superconducting qubit technology, as the control and scalability of this technology pave a clear path to achieving quantum advantage with these systems.

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What is a backend?

A backend is an interface to a quantum system or classical quantum simulator. A backend may be online or local and may support different types of experiments (pulse schedule and/or circuit execution). Here we focus only on those backends that are hosted on IBM Quantum Experience. These backends are denoted by names that start with ibmq_*. All backends return a configuration file containing all the information needed for executing quantum circuits on the backend. Additionally, real quantum systems return properties information that details the characteristics of the device qubits, and the gates acting on these qubits. This includes noise information obtained from device calibration scripts.

Cite usage of a backend

For research papers, we encourage authors to acknowledge IBM Quantum using:

We acknowledge the use of IBM Quantum services for this work. The views expressed are those of the authors, and do not reflect the official policy or position of IBM or the IBM Quantum team.

Systems should be cited using the following format (here using Vigo as the example):

ibmq_vigo v1.0.2, IBM Quantum team. Retrieved from https://quantum-computing.ibm.com (2020).

Available systems

Premium quantum systems

System name(s)

Qubit count

Quantum Volume(s)

Rochester

53

8

heavy53

Cambridge

28

8

heavy28

Montreal, Paris, Toronto

27

32, 32, 32

heavy27

Almaden, Boeblingen, Singapore

20

8, 16, 16

pen4

Johannesburg

20

32

pen3

Bogota, Rome

5

32, 32

linear

Valencia

5

16

cross

Open quantum systems

System name(s)

Qubit count

Quantum Volume(s)

Melbourne

15

ladder

Burlington, Essex, London, Ourense, Vigo

5

8, 8, 16, 8, 16

cross

Yorktown (QX2)

5

8

bowtie

Armonk

1

point

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