Round 8: Tossup 14

Bit-flip and sign-flip codes are used in a form of “error correction” described by this adjective, which reduces information (15[1])loss caused by decoherence. Hartmut Neven names a doubly exponential law for devices described by this adjective and oversaw a 2019 (15[1])experiment at Google that claimed its namesake “supremacy.” (15[2])Devices described by this adjective can perform prime (15[1])factorization using (*) Shor’s algorithm much quicker than their classical counterparts. This adjective describes machines that use units of information that can be entangled or exist in superposition. For 10 points, what adjective names a computing paradigm based on qubits? ■END■

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