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.
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.