D. W. Berry, Childs, A. M., Cleve, R., Kothari, R., and Somma, R. D.,
“Simulating Hamiltonian dynamics with a truncated Taylor series”,
Physical Review Letters, vol. 114, no. 9, p. 090502, 2015.
D. W. Berry, Childs, A. M., Ostrander, A., and Wang, G.,
“Quantum algorithm for linear differential equations with exponentially improved dependence on precision”,
Communications in Mathematical Physics, vol. 356, no. 3, pp. 1057-1081, 2017.