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Return a Cirq circuit with exponential forms of operators.
tfq.util.exponential( operators, coefficients=None )
Construct an exponential form of given
Operators to be exponentiated are specified in
cirq.PauliString. Parameters are given by
Note that only operators whose standard representations consist of terms which all commute can be exponentiated. This allows use of the identity exp(A+B+...) = exp(A)exp(B)... else there would need to be automatic handling of Trotterization and convergence, which is not supported yet.