6.4. initialization#
- class SetBits(name, numberBits)[source]#
Bases:
QuantumOperationThis operations allows to set the values of classical bits.
For instance, the operation
`setBits("values", 3)`sets three classical bits to the values with the name`values`.Note that the definition of
`values`depends on the chosen backend and must be defined with the function`setValue`of the backend.- getEquivalentSequence()[source]#
Return a sequence, which is equivalent to this gate. A
`Sequence`object is returned with this operation as only component in the list of operations.- Returns:
Sequence – An object of the class```Sequence``` is returned with this operation and the appropriate classical targets in it.
- Return type:
geqo.core.quantum_circuits.Sequence
- getInverse()[source]#
Calling this method raises an exception because this operation has no inverse.
- getNumberClassicalBits()[source]#
Return the number of classical bits that are used by this operation.
- Returns:
numberBits – This operation acts on the specified number of classical bits.
- Return type:
int
- getNumberQubits()[source]#
Return the number of qubits that are used by this operation.
- Returns:
0 – This operation only acts on classical bits.
- Return type:
int
- class SetDensityMatrix(name, numberQubits)[source]#
Bases:
QuantumOperationThis class allows to set the density matrix of one or more qubits. Before the state is set, the affected qubits are traced out, leading to a mixed state in general.
For instance, the operation
`SetDensityMatrix("ρ", 2)`sets two qubits to the density matrix with the name`ρ`.Note that the definition of the corresponding density matrix depends on the chosen backend and must be defined with the function
`setValue`of the backend.- getEquivalentSequence()[source]#
Return a sequence, which is equivalent to this gate. A
`Sequence`object is returned with this operation as only component in the list of operations.- Returns:
Sequence – An object of the class```Sequence``` is returned with this operation and the appropriate quantum targets in it.
- Return type:
geqo.core.quantum_circuits.Sequence
- getInverse()[source]#
Calling this method raises an exception because this operation has no inverse.
- getNumberClassicalBits()[source]#
Return the number of classical bits that are used by this operation.
- Returns:
0 – This operation only acts on quantum bits.
- Return type:
int
- getNumberQubits()[source]#
Return the number of qubits that are used by this operation.
- Returns:
numberQubits – This operation only acts on the specified number of qubits.
- Return type:
int
- class SetQubits(name, numberQubits)[source]#
Bases:
QuantumOperationThis operations allows to set the values of qubits.
For instance, the operation
`setQubits("values", 3)`sets three qubits to either |0> or |1> with the name`values`.Note that the definition of
`values`depends on the chosen backend and must be defined with the function`setValue`of the backend.- getEquivalentSequence()[source]#
Return a sequence, which is equivalent to this gate. A
`Sequence`object is returned with this operation as only component in the list of operations.- Returns:
Sequence – An object of the class```Sequence``` is returned with this operation and the appropriate quantum targets in it.
- Return type:
geqo.core.quantum_circuits.Sequence
- getInverse()[source]#
Calling this method raises an exception because this operation has no inverse.
- getNumberClassicalBits()[source]#
Return the number of classical bits that are used by this operation.
- Returns:
0 – This operation only acts on quantum bits.
- Return type:
int
- getNumberQubits()[source]#
Return the number of qubits that are used by this operation.
- Returns:
numberQubits – This operation only acts on the specified number of qubits.
- Return type:
int