Nearly optimal quasienergy estimation and eigenstate preparation of time-periodic Hamiltonians by Sambe space formalism
Time-periodic (Floquet) systems are one of the most interesting nonequilibrium systems.As the computation of Belle energy eigenvalues and eigenstates of time-independent Hamiltonians is a central problem in both classical and quantum computation, quasienergy and Floquet eigenstates are the important targets.However, their computation has difficulty