cirq.sim.StabilizerStateChForm

A representation of stabilizer states using the CH form,

cirq.sim.StabilizerStateChForm(
    num_qubits: int,
    initial_state: int = 0
) -> None

$|\psi> = \omega U_C U_H |s>$

This representation keeps track of overall phase.

Reference: https://arxiv.org/abs/1808.00128

num_qubits The number of qubits in the system.
initial_state The computational basis representation of the state as a big endian int.

Methods

copy

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copy() -> "cirq.StabilizerStateChForm"

inner_product_of_state_and_x

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inner_product_of_state_and_x(
    x: int
) -> Union[float, complex]

Returns the amplitude of x'th element of the state vector, i.e.

project_Z

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project_Z(
    q, z
)

Applies a Z projector on the q'th qubit.

Returns: a normalized state with Z_q |psi> = z |psi>

state_vector

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state_vector() -> np.ndarray

to_state_vector

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to_state_vector() -> np.ndarray

update_sum

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update_sum(
    t, u, delta=0, alpha=0
)

Implements the transformation (Proposition 4 in Bravyi et al)

i^alpha U_H (|t> + i^delta |u>) = omega W_C W_H |s'>

__eq__

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__eq__(
    other: _SupportsValueEquality
) -> bool

__ne__

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__ne__(
    other: _SupportsValueEquality
) -> bool