Digitized Adiabatic Quantum Computing with a Superconducting Circuit
Venue
Nature, vol. 534 (2016), pp. 222-226
Publication Year
2016
Authors
Rami Barends, Alireza Shabani, Lucas Lamata, Julian Kelly, Antonio Mezzacapo, Urtzi Las Heras, Ryan Babbush, Austin Fowler, Brooks Campbell, Yu Chen, Zijun Chen, Ben Chiaro, Andrew Dunsworth, Evan Jeffrey, Erik Lucero, Anthony Megrant, Josh Mutus, Matthew Neeley, Charles Neill, Peter O'Malley, Chris Quintana, Enrique Solano, Ted White, Jim Wenner, Amit Vainsencher, Daniel Sank, Pedram Roushan, Hartmut Neven, John Martinis
BibTeX
Abstract
A major challenge in quantum computing is to solve general problems with limited
physical hardware. Here, we implement digitized adiabatic quantum computing,
combining the generality of the adiabatic algorithm with the universality of the
digital approach, using a superconducting circuit with nine qubits. We probe the
adiabatic evolutions, and quantify the success of the algorithm for random spin
problems. We find that the system can approximate the solutions to both frustrated
Ising problems and problems with more complex interactions, with a performance that
is comparable. The presented approach is compatible with small-scale systems as
well as future error-corrected quantum computers.
