线性 ODE 输入模型¶

oracq.algorithms.qode.ode_models

Shared input model of Hermitian decompositions and autonomous linear ODEs.

class oracq.algorithms.qode.ode_models.HermitianParts(hermitian, h)[源代码]¶

基类：object

A=L+iH; the Hermitian/positive-semidefinite properties are input-model declarations, not proved by the language.

classmethod from_operator(a)[源代码]¶

Construct the Hermitian decomposition A = L + iH from the block encoding of operator A.

Combines a and its adjoint via an LCU to build L = (A + A†)/2 and H = (A - A†)/(2i).

参数:: a -- Block encoding of the operator A.
返回:: The corresponding Hermitian decomposition; the Hermitian nature of each component remains caller-declared.
返回类型:: HermitianParts

class oracq.algorithms.qode.ode_models.LinearODE(parts, initial, label='du_dt_equals_minus_A_u')[源代码]¶

基类：object

Shared input model of the autonomous linear ODE u' = -Au (with A = L + iH).

变量:

parts (oracq.algorithms.qode.ode_models.HermitianParts) -- The HermitianParts decomposition of A.
initial (oracq.algorithms.input_model.oracles.StatePreparation) -- Initial state preparation; its target width must match parts.
label (str) -- Model label; the default spells out the equation form.