mimiqcircuits.operations.measure

Measurement operations.

Classes

AbstractMeasurement()
Measure()	Measure operation.
MeasureX()	Single qubit measurement operation in the X-basis.
MeasureY()	Single qubit measurement operation in the Y-basis.
MeasureZ()	Single qubit measurement operation in the Z-basis.

class mimiqcircuits.operations.measure.Measure

Bases: AbstractMeasurement

Measure operation.

This operation performs a measurement in the computational basis (Z-basis) and stores the result in a classical register.

The measurement projects the quantum state onto either the \(|0⟩\) or \(|1⟩\) state, corresponding to the classical bit values of 0 and 1, respectively.

Warning

Measure is non-reversible.

Examples

Adding Measure operation to the Circuit (The qubits (first arg) and the bits (second arg) can be: range, list, tuple, set or int)

>>> from mimiqcircuits import *
>>> c= Circuit()
>>> c.push(Measure(),0,0)
1-qubit, 1-bit circuit with 1 instruction:
└── M @ q[0], c[0]

>>> from mimiqcircuits import *
>>> c= Circuit()
>>> c.push(Measure(), range(0,3), range(0,3))
3-qubit, 3-bit circuit with 3 instructions:
├── M @ q[0], c[0]
├── M @ q[1], c[1]
└── M @ q[2], c[2]

inverse()

power(p)

control(num_qubits)

iswrapper()

get_operation()

class mimiqcircuits.operations.measure.MeasureX

Bases: AbstractMeasurement

Single qubit measurement operation in the X-basis.

This operation projects the quantum state onto the X-basis and stores the result of such measurement in a classical register. The measurement is performed by first applying a Hadamard gate to rotate the qubit’s state into the computational basis, performing a standard Z-basis measurement, and then applying another Hadamard gate to return the qubit to its original basis.

Warning

MeasureX is non-reversible.

See also

Measure, MeasureY, MeasureZ, Operation, Reset

Examples

>>> from mimiqcircuits import *
>>> MeasureX()
MX

>>> c = Circuit()
>>> c.push(MeasureX(), 2, 1)
3-qubit, 2-bit circuit with 1 instruction:
└── MX @ q[2], c[1]

>>> c.push(MeasureX(), 3, 4)
4-qubit, 5-bit circuit with 2 instructions:
├── MX @ q[2], c[1]
└── MX @ q[3], c[4]

inverse()

power(p)

control(num_qubits)

iswrapper()

get_operation()

class mimiqcircuits.operations.measure.MeasureY

Bases: AbstractMeasurement

Single qubit measurement operation in the Y-basis.

This operation projects the quantum state onto the Y-basis and stores the result of such measurement in a classical register. The measurement is performed by first applying a \(R_y(\pi/2)\) rotation gate to rotate the qubit’s state into the computational basis, performing a standard Z-basis measurement, and then applying another \(R_y(-\pi/2)\) rotation to return the qubit to its original basis.

Warning

MeasureY is non-reversible.

See also

Measure, MeasureX, MeasureZ, Operation, Reset

Examples

>>> from mimiqcircuits import *
>>> MeasureY()
MY

>>> c = Circuit()
>>> c.push(MeasureY(), 2, 1)
3-qubit, 2-bit circuit with 1 instruction:
└── MY @ q[2], c[1]

>>> c.push(MeasureY(), 3, 4)
4-qubit, 5-bit circuit with 2 instructions:
├── MY @ q[2], c[1]
└── MY @ q[3], c[4]

inverse()

power(p)

control(num_qubits)

iswrapper()

get_operation()

class mimiqcircuits.operations.measure.MeasureZ

Bases: AbstractMeasurement

Single qubit measurement operation in the Z-basis.

This class returns an instance of the Measure operation, effectively acting as an alias for Z-basis measurement.

Warning

MeasureZ is non-reversible.

See also

Measure, MeasureX, MeasureY, Operation, Reset

Examples

>>> from mimiqcircuits import *
>>> MeasureZ()
M

>>> c = Circuit()
>>> c.push(MeasureZ(), 0, 0)
1-qubit, 1-bit circuit with 1 instruction:
└── M @ q[0], c[0]

>>> c.push(MeasureZ(), 1, 2)
2-qubit, 3-bit circuit with 2 instructions:
├── M @ q[0], c[0]
└── M @ q[1], c[2]