Quantum Rosetta

Generate Circuits

Quantum Algorithms ▾

Qubits

Editor

OpenQASM 2.0 editor

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Benchmarks

Suite MQT Bench QASMBench

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Run Run

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Mode Mode Statevector Measured

Run Name (Optional)

Shots When the shots are too few for a reliable comparison, the result says so and recommends a count.

Backends and optimization levels

Execution

Timeout per backend (seconds)

Covers process start, the warm-up run and every timed run.

Timing repeats

After one warm-up, compile and simulate this many times in the same process; times are the median. Each backend still gives one result. To compare separate runs of a backend with each other, use Multi-run mode in Backends.

Exclusive timing runBackends run one at a time, and only while no other run is in flight on this server. Use it for timings you will compare or publish.

Execution Environment

The report records where it ran.

Auto-save results to a folder

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Each completed run is written as a JSON file to a folder on this computer.

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Circuit Preprocessing

How preprocessing works

Apply SDK Preprocessing

OnThe API merges quantum registers and round-trips the circuit through pytket; each backend applies its own passes. Every change is listed per backend. OffRaw SDK behaviour; some backends will reject some gates. Both, as an experimentRuns with it on and off; results per setting and a downloadable bundle.

Bypass API Safety LimitsLocal servers only: skips the size and statement-count limits. Qubit limits still apply.

Compile-only services

Each ticked level compiles the run's circuit after the simulators finish; outputs are in the Circuits tab and are not simulated or compared. With none ticked, no compile-only service runs; with Statevector and Measured both unticked, only these run. Hover a level for what it runs.

Agreement Thresholds

Details

A statevector pair agrees when fidelity ≥ 1 − fidelity tolerance; a phase within the phase tolerance counts as 0. The JS and Hellinger cut-offs are descriptive; the shot-noise test decides measured agreement.

Statevector fidelity tol Statevector phase tol (rad) Measured JS threshold (nats) Measured Hellinger threshold Statevector norm tol