Initial States (qiskit.aqua.components.initial_states
)¶
Initial states are a fixed quantum state. These can be used, for example, to define a starting
state for variational_forms
, such as when used with
VQE
, or to define a starting state for the evolution
in algorithms such as QPE
and
IQPE
.
If you have a specific quantum circuit you would like to use as an initial state, and do not
want to make a new class derived from InitialState
to use it, this can be especially so
if the circuit is fixed, then see Custom
which allows it to be used as an
InitialState
for algorithms and components that expect this as a type.
Initial State Base Class¶
Base class for InitialState. |
Initial States¶
The custom initial state. |
|
The variational form based initial state. |
|
The zero (null/vacuum) state. |