Skip to content
πŸ“– Reference

Glossary

Every term at three levels: Simple, Student and Advanced.

20 terms

Amplitude
A number attached to each possible outcome. Bigger amplitude = more likely.
Basis state
One of the ordinary outcomes a register can show, like 0101.
BitTry it β†’
A bit stores one of two values: 0 or 1.
DiffusionTry it β†’
The step that makes the marked answer stand out by 'bouncing' amplitudes around their average.
EntanglementTry it β†’
When qubits become linked so their results match up, even far apart.
GroverTry it β†’
A quantum method for finding a marked item among many, using fewer checks.
HadamardTry it β†’
A gate that turns 0 into an equal mix of 0 and 1.
InterferenceTry it β†’
When quantum possibilities add up or cancel out, like waves in water.
MeasurementTry it β†’
Looking at a qubit. You always get a normal 0 or 1.
NoiseTry it β†’
Unwanted disturbances that cause qubits to make mistakes.
OracleTry it β†’
A 'checker' that secretly marks the right answer.
PhaseTry it β†’
A hidden angle on a qubit. You can't see it directly, but it changes how waves combine.
ProbabilityTry it β†’
How likely a result is, from 0% to 100%.
QECTry it β†’
Quantum error correction: tricks to spot and fix qubit mistakes.
QMLTry it β†’
Quantum machine learning: using quantum circuits as learning models.
Quantum CircuitTry it β†’
A recipe of steps (gates) applied to qubits, drawn as lines and boxes.
Quantum Gate
An operation that changes qubits, like a logic gate changes bits.
QubitTry it β†’
A quantum bit. It can be in a mix of 0 and 1 until you measure it.
Statevector simulation
Calculating a quantum computer's behaviour on an ordinary computer.
SuperpositionTry it β†’
Being in a combination of 0 and 1 at the same time β€” in a way that can interfere.