%0 Journal Article %T Ising formulations of many NP problems %A Andrew Lucas %J Frontiers in Physics %D 2014 %I Frontiers Media %R 10.3389/fphy.2014.00005 %X We provide Ising formulations for many NP-complete and NP-hard problems, including all of Karp's 21 NP-complete problems. This collects and extends mappings to the Ising model from partitioning, covering, and satisfiability. In each case, the required number of spins is at most cubic in the size of the problem. This work may be useful in designing adiabatic quantum optimization algorithms. %K spin glasses %K complexity theory %K adiabatic quantum computation %K NP %K algorithms %U http://www.frontiersin.org/Journal/10.3389/fphy.2014.00005/abstract