gate_generalized_amplitude_damp: Generalized amplitude damp

In henry090/Cirq: Interface to 'Cirq'

Description

probabilities gamma and p. This channel evolves a density matrix via: $$ \rho \rightarrow M_0 \rho M_0^\dagger + M_1 \rho M_1^\dagger + M_2 \rho M_2^\dagger + M_3 \rho M_3^\dagger $$ With: $$ \beginaligned M_0 =& \sqrtp \beginbmatrix 1 & 0 \ 0 & \sqrt1 - \gamma \endbmatrix \ M_1 =& \sqrtp \beginbmatrix 0 & \sqrt\gamma \ 0 & 0 \endbmatrix \ M_2 =& \sqrt1-p \beginbmatrix \sqrt1-\gamma & 0 \ 0 & 1 \endbmatrix \ M_3 =& \sqrt1-p \beginbmatrix 0 & 0 \ \sqrt\gamma & 0 \endbmatrix \endaligned $$

Usage

gate_generalized_amplitude_damp(p, gamma)

Arguments

p	the probability of the qubit and environment exchanging energy.
gamma	the probability of the interaction being dissipative.

Value

a GeneralizedAmplitudeDampingChannel with the given

Raises

ValueError: gamma or p is not a valid probability.

See Also

Other Noisy gates and operations: gate_amplitude_damping_channel(), gate_amplitude_damp(), gate_asymmetric_depolarize(), gate_asymmetric_depolarizing_channel(), gate_bit_flip_channel(), gate_bit_flip(), gate_depolarize(), gate_depolarizing_channel(), gate_generalized_amplitude_damping_channel(), gate_no_noise(), gate_noise_model_like(), gate_noise_model(), gate_phase_damping_channel(), gate_phase_damp(), gate_phase_flip_channel(), gate_phase_flip(), gate_reset_channel(), gate_reset()

henry090/Cirq documentation built on June 13, 2020, 1:28 a.m.