Solved (a) [10 marks] The time-evolution operator in the | Chegg.com
Normal order - Wikipedia
Diagram for an out-of-time-order superdensity operator. | Download Scientific Diagram
Time ordering operator | Physics Forums
A PLC Implementation of PSE Approximant for Fractional Order Operator | springerprofessional.de
quantum field theory - What is the calculation rule of the normal ordering operator? - Physics Stack Exchange
hamiltonian simulation - Why is the time ordering omitted in the trotterised version of the time-dependent evolution operator? - Quantum Computing Stack Exchange
quantum field theory - Why commutation relations is applied in normal order for antiparticle relation ($t_1<t_2$) in wick theorem - Physics Stack Exchange