Class Q5mObserver

Unified Quantum Observer for measurement operations

Index

Constructors

Methods

registerBasis getAvailableBases getBasis getBasisDescription measure probabilities measureMultiple measureAll measureWith applyProjectors fidelity

Constructors

constructor

new Q5mObserver(): Q5mObserver
Returns Q5mObserver

Methods

`Static`registerBasis

registerBasis(name: string, basis: BasisOperator): void
Register a custom measurement basis
Parameters
- name: string
- basis: BasisOperator
Returns void
- Defined in src/core/Q5mObserver.ts:26

`Static`getAvailableBases

getAvailableBases(): string[]
Get list of available measurement bases

Returns string[]
- Defined in src/core/Q5mObserver.ts:31

`Static`getBasis

getBasis(name: string): undefined | BasisOperator
Get measurement basis by name
Parameters
- name: string
Returns undefined | BasisOperator
- Defined in src/core/Q5mObserver.ts:36

`Static`getBasisDescription

getBasisDescription(name: string): string
Get description of a measurement basis
Parameters
- name: string
Returns string
- Defined in src/core/Q5mObserver.ts:41

`Static`measure

measure(state: Q5mState, index: number, basisName?: string): MeasurementResult
Measure a quantum state with a specific measurement basis
Parameters
- state: Q5mState
- index: number
- basisName: string = 'computational'
Returns MeasurementResult
- Defined in src/core/Q5mObserver.ts:54

`Static`probabilities

probabilities(
    state: Q5mState,
    index: number,
    basisName?: string,
): { prob0: number; prob1: number }
Calculate measurement probabilities for a specific basis
Parameters
- state: Q5mState
- index: number
- basisName: string = 'computational'
Returns { prob0: number; prob1: number }
- Defined in src/core/Q5mObserver.ts:78

`Static`measureMultiple

measureMultiple(
    state: Q5mState,
    indices: number[],
    basisName?: string,
): MeasurementResult
Parameters
- state: Q5mState
- indices: number[]
- basisName: string = 'computational'
Returns MeasurementResult
- Defined in src/core/Q5mObserver.ts:105

`Static`measureAll

measureAll(state: Q5mState, basisName?: string): MeasurementResult
Measure all qubits and return outcome as string
Parameters
- state: Q5mState
- basisName: string = 'computational'
Returns MeasurementResult
- Defined in src/core/Q5mObserver.ts:135

`Static`measureWith

measureWith(
    state: Q5mState,
    index: number,
    projectors: { P0: Matrix; P1: Matrix },
): MeasurementResult
Measure with custom projectors
Parameters
- state: Q5mState
- index: number
- projectors: { P0: Matrix; P1: Matrix }
Returns MeasurementResult
- Defined in src/core/Q5mObserver.ts:141

`Static`applyProjectors

applyProjectors(
    state: Q5mState,
    index: number,
    projectors: { P0: Matrix; P1?: Matrix },
    options?: { returnProbabilities?: boolean; collapseState?: ZeroOne },
): {
    collapsedState?: Q5mState<Q5mMaterial<StateVector>>;
    prob0?: number;
    prob1?: number;
}
Internal
Apply one or two projectors and return states and/or probabilities Used by basis implementations and internal measurement logic
Parameters
- state: Q5mState
- index: number
- projectors: { P0: Matrix; P1?: Matrix }
- options: { returnProbabilities?: boolean; collapseState?: ZeroOne } = {}
Returns {
    collapsedState?: Q5mState<Q5mMaterial<StateVector>>;
    prob0?: number;
    prob1?: number;
}
- Defined in src/core/Q5mObserver.ts:184

`Static`fidelity

fidelity(state1: Q5mState, state2: Q5mState): number
Calculate fidelity between two quantum states
Parameters
- state1: Q5mState
- state2: Q5mState
Returns number
- Defined in src/core/Q5mObserver.ts:270

Class Q5mObserver

Index

Constructors

Methods

Constructors

constructor

Returns Q5mObserver

Methods

StaticregisterBasis

Parameters

Returns void

StaticgetAvailableBases

Returns string[]

StaticgetBasis

Parameters

Returns undefined | BasisOperator

StaticgetBasisDescription

Parameters

Returns string

Staticmeasure

Parameters

Returns MeasurementResult

Staticprobabilities

Parameters

Returns { prob0: number; prob1: number }

StaticmeasureMultiple

Parameters

Returns MeasurementResult

StaticmeasureAll

Parameters

Returns MeasurementResult

StaticmeasureWith

Parameters

Returns MeasurementResult

StaticapplyProjectors

Parameters

Returns { collapsedState?: Q5mState<Q5mMaterial<StateVector>>; prob0?: number; prob1?: number;}

Staticfidelity

Parameters

Returns number

Settings

On This Page

`Static`registerBasis

`Static`getAvailableBases

`Static`getBasis

`Static`getBasisDescription

`Static`measure

`Static`probabilities

`Static`measureMultiple

`Static`measureAll

`Static`measureWith

`Static`applyProjectors

Returns {
collapsedState?: Q5mState<Q5mMaterial<StateVector>>;
prob0?: number;
prob1?: number;
}

`Static`fidelity