Cardinality Frontier Distance (M10052)
| Metric ID | M10052 |
|---|---|
| Category | personal |
| Access | personal — computed per customer from the portfolio they submit; see Personal metrics |
| Classification | classic |
| Tier | enterprise |
| Computation | Classical + Quantum (hardware) + Quantum (simulated) |
| Computed by | Black Belt Labs |
| Freshness | fresh |
Quantum configuration
Every quantum calculation of this metric, with the machine and circuit setup it runs on. Hardware values come from real IBM quantum computers; simulator values from a classical simulation of the same kind of circuit.
| Method | Quantum computing on hardware (quant-hw) |
|---|---|
| Provider | IBM Quantum Platform (Open plan) |
| Machine | ibm_fez,ibm_kingston (156 qubits) |
| Machine type | superconducting QPU (IBM Heron) |
| Qubits used | 6 |
| Circuits per run | 4 |
| Shots per run | 4,096 |
| Circuit depth | 129 |
| Two-qubit gates | 48 |
| Gate basis | cz, rz, sx, x (IBM Heron native) |
| Algorithm | shallow hardware profile of the personal twin (direct readout, small QAOA grid) |
| Profile | shallow |
| Error mitigation | dynamical decoupling + measurement twirling; no post-hoc correction |
| Hardware runs | 10 |
| Last run | 2026-10-08T07:10:36 |
| How measured | recorded circuits compiled with the ibm_fez device model (estimate of the submitted circuits) |
| Note | maximum over 2 portfolios; circuits differ with portfolio size |
| Method | Quantum computing simulated (quant-sim) |
|---|---|
| Provider | Qiskit Aer simulator (IBM open-source software) on Google Cloud |
| Machine | aer_simulator |
| Machine type | classical simulator (CPU, noise-free) |
| Qubits used | 6 |
| Circuits per run | 20 |
| Shots per run | 10,240 |
| Circuit depth | 30 |
| Two-qubit gates | 30 |
| Gate basis | u, cx (Aer, flattened) |
| Algorithm | personal_core twin (see methodology) |
| Profile | full |
| Error mitigation | none (noise-free simulation) |
| How measured | recorded circuits, compiled to u/cx |
| Note | maximum over 2 portfolios |
Personal metrics: figures are the maximum across submitted portfolios (circuit size follows portfolio size). Machine qubits is the size of the whole chip; qubits used is what this calculation needs.
Hypotheses monitored by this metric
Access this metric
A personal metric: submit your portfolio, then read your own values. See the Personal metrics guide.
curl -X POST -H "X-API-Key: $MADJIK_API_KEY" -H "Content-Type: application/json" \
-d '{"positions": [{"symbol": "BTC", "qty": 0.5}]}' https://api.madjik.io/v1/portfolio
curl -H "X-API-Key: $MADJIK_API_KEY" https://api.madjik.io/v1/metrics/personal