QPUStatus

IQM Garnet

Superconducting Transmon • 20 Qubits • Square Lattice • Tunable Couplers • QV 32
AWS ROUTE
LOAD
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Pending Tasks
Awaiting telemetry...
DIRECT CLOUD
SOON
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Not Yet Tracked
IQM Resonance (resonance.meetiqm.com) provides direct cloud access. Telemetry integration is coming soon.
AZURE ROUTE
N/A
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Not Available
IQM Garnet is not listed as an Azure Quantum target. No Azure integration is available at this time.

Live Status: Currently, the IQM Garnet is Online via AWS (0 tasks). Updated real-time for IQM Quantum Computers circuit monitoring.

QPUStatus is independent. Data from provider APIs may vary from internal states. Trademarks property of IQM Quantum Computers. Not affiliated.

Live Network Load

AWS Route

*Metric: Total number of tasks pending execution (Queue Depth).

Direct Cloud Route (IQM Resonance)

Direct API Integration Coming Soon

Azure Route

Azure Route Not Available for IQM Garnet

System Availability Trends

AWS Route Availability 100%
30 days ago Today

Detailed Connectivity (Last 7 Days)

Unofficial Telemetry Dashboard

This is an independent tracking project. QPUStatus is not affiliated with, endorsed by, or partnered with IQM Quantum Computers or AWS. Our data is gathered automatically via public API routing endpoints and may not perfectly reflect internal hardware states.

Hardware Deep Dive

IQM Garnet is a 20-qubit superconducting quantum processor built by IQM Quantum Computers, based in Espoo, Finland. It was the first QPU hosted within the European Union to become available on a major cloud platform, launching on AWS Braket in May 2024. Garnet uses transmon qubits arranged in a square lattice interconnected by IQM's proprietary tunable couplers -- an additional transmon layer that allows the coupling strength between any two adjacent qubits to be actively set to zero during idle periods, dramatically reducing crosstalk and enabling fast, high-fidelity two-qubit gates.

Technical Specifications

Architecture Superconducting Transmon
Computational Qubits 20 Source
Tunable Coupler Qubits 30 (not user-accessible) Source
Topology Square lattice (Crystal architecture)
1-Qubit Gate Fidelity 99.92% median Source
2-Qubit Gate Fidelity 99.51% median over all 30 pairs; 99.8% max over single pair Source
Native 1Q Gate Arbitrary X and Y rotations Source
Native 2Q Gate CZ (20-40 ns) Source
Quantum Volume 32 (25) Source
AWS Availability 19 hours/day Source (see Enhanced availability and accessibility section)
AWS Region eu-north-1 (Stockholm)
Physical Location Finland (EU data residency)
Direct Cloud Access IQM Resonance (resonance.meetiqm.com)

Common Provider Questions

What are tunable couplers and why do they matter?

In a standard superconducting processor, qubits that are physically close to each other interact even when no gate is being applied -- this "always-on" coupling is a significant source of errors. IQM inserts additional transmon qubits between each pair of data qubits purely to act as programmable coupling elements. When a gate is not being executed, the coupler is tuned to cancel the interaction to near-zero. This lets Garnet achieve fast two-qubit gate times (20-40 ns) while keeping idling crosstalk low, which is the key driver behind its 99.51% median two-qubit fidelity.

What does a square lattice topology mean for circuit routing?

Garnet's 20 computational qubits are arranged in a 4x5 grid where each qubit connects to its immediate horizontal and vertical neighbours only. This means two-qubit gates can only be applied directly between adjacent qubits. For circuits that require interactions between non-adjacent qubits, the compiler inserts SWAP chains to move qubit state around the grid. Unlike all-to-all topologies (IonQ, AQT), this adds routing overhead for densely connected problems -- but the square lattice natively maps to surface-code error correction, which is the leading candidate for fault-tolerant quantum computing at scale.

At what temperature does Garnet operate?

Like all superconducting processors, Garnet requires a dilution refrigerator to reach operating temperatures near 10-20 millikelvin -- roughly 150 times colder than outer space. At this temperature, the transmon qubits enter a superconducting state and exhibit quantum behaviour. This is in sharp contrast to IQM's European peer AQT, whose trapped-ion IBEX Q1 operates at room temperature.

What are dynamic circuits and does Garnet support them?

Yes. IQM Garnet supports mid-circuit measurements (MCM) and feed-forward operations as an experimental feature on AWS Braket. This means a circuit can measure one or more qubits partway through execution and then apply subsequent gates conditionally on those measurement outcomes -- without restarting the circuit. This capability is essential for quantum error correction schemes and measurement-based quantum computing protocols. The feature is enabled via the experimental_capabilities="ALL" parameter in the Braket SDK.