| Term | Meaning |
|---|---|
| Active packet | A symmetry sector or representation component reached by the input and gates. |
| Approximate packet | A subspace or representation that is not exactly invariant but has certified leakage. |
| Compressed packet | A packet whose states are represented by a compact classical data structure rather than explicit amplitudes. |
| Coherence block | \(P_\alpha\rho P_\beta\) with possibly distinct left and right packet labels. |
| Equitable partition | A graph partition whose cells have uniform neighbor counts, yielding an invariant quotient subspace. |
| Global interference | Dependence of the output on coherent phase relations among many contributions or packets. |
| Invariant packet | A subspace mapped into itself by every gate in the declared circuit decomposition. |
| Leakage | Amplitude or probability transferred outside a proposed active representation. |
| Multiplicity space | Repeated-copy factor accompanying an irreducible representation in a group decomposition. |
| Orbit state | Normalized uniform superposition over one group orbit of basis states or graph vertices. |
| Packet transfer graph | Directed graph recording nonzero blocks \(P_\alpha G P_\beta\). |
| Symmetry collapse | Exact or controlled replacement of a quantum evolution by a polynomial classical representation using symmetry or related compression. |
| Uniform circuit family | Circuits generated from the input by a deterministic polynomial-time procedure. |
Quantum and CircuitsReading edition
Shared glossary
Reading tools
Reading libraryFind statementsInspect Lean
Text settings
Saved in this browser for reading chapters. Browser zoom also works.
Source and conversion record
Source SHA-256: 91884fd3b9dcb5ea782e38ef79497f88b00f1197e07f8469f96c99f6be2c2e07
Unsupported prose commands stop the build. The mathematical expression sequence is checked against the source, with manuscript macros expanded for display.