Behaviour for quantum state manipulation.

This behaviour ensures consistent API across Circuit and Calculation modes. Any module implementing this behaviour must provide a complete set of quantum gate operations and state inspection functions.

Example

defmodule MyQuantumState do
  @behaviour Qx.Behaviours.QuantumState

  @impl true
  def h(state, qubit), do: # ... implementation

  @impl true
  def state_vector(state), do: # ... implementation

  # ... other required callbacks
end