@article {2002,
	title = {On the generation of sequential unitary gates from continuous time Schrodinger equations driven by external fields},
	journal = {Quantum Inf.Process. 1 (2002),no.3,207},
	number = {SISSA;43/2002/M},
	year = {2002},
	publisher = {SISSA Library},
	doi = {10.1023/A:1019825109040},
	url = {http://hdl.handle.net/1963/1614},
	author = {Claudio Altafini}
}
