K metric
K is directional and analysis-basis-specific. Ki→j is high when splitting qubit i along X, Y, or Z prepares distinguishable conditional states on qubit j.
K metric paperQCFlows shows how correlations build up between qubits as a circuit runs. Build a circuit gate by gate, press Run, and watch pairwise measures (K, Entanglement of Formation, Mutual Information) appear as a graph, a matrix, and per-state amplitudes.
The X/Y/Z control chooses the coordinate basis used for analysis and display. It changes K, node colors, and state readouts without inserting measurement operations into the circuit.
The graph and matrix show one selected pair metric at a time. Missing entries mean that no pair density matrix is available for that marker.
K is directional and analysis-basis-specific. Ki→j is high when splitting qubit i along X, Y, or Z prepares distinguishable conditional states on qubit j.
K metric paperEoF is a symmetric two-qubit entanglement measure. It is zero for separable pairs and one for a maximally entangled Bell pair.
Short backgroundMI is a symmetric total-correlation measure. It includes both classical and quantum correlations and is reported in bits.
Short backgroundShows or hides panels in the workspace without changing circuit data or computed results.
Loads stored circuits from the backend so you can inspect known patterns without rebuilding them by hand.
Edits the local circuit: qubit count, gate placement, undo, and reset. Press Run to compute metrics for the current circuit.
Shows the current operation sequence and marker history. Markers let you inspect selected points in the circuit timeline.
Shows the selected pair metric as a matrix. Empty cells mean that pair data is unavailable for the current marker.
Shows state probabilities in the selected analysis basis when statevector data is available.
Lists non-negligible statevector amplitudes for the selected marker and analysis basis.
Imports and exports supported OpenQASM through the backend Qiskit bridge.
Each circle in the graph is a qubit. Its color shows where its single-qubit state sits in the chosen analysis basis — the same color scale the graph uses.