Deutsch 1985 (Proc. R. Soc. A 400:97) introduced the single-bit precursor; Deutsch-Jozsa 1992 (Proc. R. Soc. A 439:553) extended it to n bits. Promise problem: given an oracle f:{0,1}^n → {0,1} guaranteed either constant (f(x) ≡ 0 or ≡ 1…
Deutsch 1985 (Proc. R. Soc. A 400:97) introduced the single-bit precursor; Deutsch-Jozsa 1992 (Proc. R. Soc. A 439:553) extended it to n bits. Promise problem: given an oracle f:{0,1}^n → {0,1} guaranteed either constant (f(x) ≡ 0 or ≡ 1…