Dwave systems CTO Geordie Rose has published his slides from the SC07 conference, where he demonstrated there latest 28 qubit system.
Dwave system is a web services QUBO solver
Dwave to a computer scientist. QUBO is NP-hard. the decision version is NP complete
Real physical systems
dwave device schematic: nobium cjj rs-squid flux qubit
Dwave approach to AQC
dwave superconducting chip: bipolar couplers
dwave potential energy of Adiabatic quantum computer can be programmed by user
Device physics : the hamiltonian
Qubit manipulation: modulate the barrier height
Qubit manipulation: tilt the double well
Readout bias: direction of the current
Dwave picture of the chip: readout section
dwave device schematic: symmetric bipolar coupler
The Dwave AQC implements both the AQC model and the quantum annealing model.
adiabatic quantum computation model
Quantum annealing model
Dwave implementing part of the image matching as AQC, part is a regular computer program.
The steps to run an adiabatic quantum computer