Figure 5.
Diagram of NNs for learning the parameters of time-independent Hamiltonians from the temporal records of single-qubit measurements. Starting from the initial state 
, the dynamical evolution 
is performed, during which the expectation values of single-qubit measurement operators 
(e.g. single-qubit Pauli operators 
with 
and 
) are measured at each time step. These expectation values over a period are then collected into a frequency vector 
, which is fed into an LSTM cell to predict parameters 
of the Hamiltonian.