Tuesday, October 3, 2017

New largest number factored on a quantum device is 56,153

Classmate Alan Yan has just sent an article from phys.org that answers the question you've always wanted to answer: what's the biggest prime number ever factored? Here are some more details on this thrilling bit of research:
Researchers have set a new record for the quantum factorization of the largest number to date, 56,153, smashing the previous record of 143 that was set in 2012. They have shown that the exact same room-temperature nuclear magnetic resonance (NMR) experiment used to factor 143 can actually factor an entire class of numbers, although this was not known until now. Because this computation, which is based on a minimization algorithm involving 4 qubits, does not require prior knowledge of the answer, it outperforms all implementations of Shor's algorithm to date, which do require prior knowledge of the answer. Expanding on this method, the researchers also theoretically show how the same minimization algorithm can be used to factor even larger numbers, such as 291,311, with only 6 qubits.

No comments:

Post a Comment