A Transmon Quantum Annealer: Decomposing Many-Body Ising Constraints   Into Pair Interactions
  Adiabatic quantum computing is an analog quantum computing scheme with various applications in solving optimization problems. In the parity picture of quantum optimization, the problem is encoded in local fields that act on qubits which are connected via local 4-body terms. We present an implementation of a parity annealer with Transmon qubits with a specifically tailored Ising interaction from Josephson ring modulators. 
Martin Leib, Peter Zoller, Wolfgang Lechner
quant-ph cond-mat.supr-con