cirq.SympyCondition

A classical control condition based on a sympy expression.

Inherits From: Condition

cirq.SympyCondition(
    expr: sympy.Basic
)

This condition resolves to True iff the sympy expression resolves to a truthy value (i.e. bool(x) == True) when the measurement keys are substituted in as the free variables.

sympy.IndexedBase can be used for bitwise conditions. For example, the following will create a condition that is controlled by the XOR of the first two bits (big-endian) of measurement 'a'.

>>> a = sympy.IndexedBase('a')
>>> cond = cirq.SympyCondition(sympy.Xor(a[0], a[1]))

keys Gets the control keys.
qasm Returns the qasm of this condition.
expr Dataclass field

Methods

replace_key

View source

replace_key(
    current: 'cirq.MeasurementKey', replacement: 'cirq.MeasurementKey'
)

Replaces the control keys.

resolve

View source

resolve(
    classical_data: 'cirq.ClassicalDataStoreReader'
) -> bool

Resolves the condition based on the measurements.

__eq__

__eq__(
    other
)

Return self==value.