%0 Conference Paper
%A Nocon, Madita
%A Willsch, Dennis
%A Jin, Fengping
%A De Raedt, Hans
%A Michielsen, Kristel
%T Simulation of a Quantum Annealer Based on Superconducting Flux Qubits
%M FZJ-2017-06911
%D 2017
%X For quantum computers, there are two theoretical models which are nowadays considered to be the most important: the gate-based quantum computer and the quantum annealer.Gate-based quantum computers are based on computational gates just like classical computers are, but have potentially more computational power due to the algebra behind quantum theory. A quantum annealer works fundamentally different: First the system is prepared in a known ground state of an initial Hamiltonian, then this Hamiltonian is adiabatically transformed into the final Hamiltonian whose ground state corresponds to the solution of a given problem, usually taken from the class of optimization problems.Quantum annealing works well in theory if the qubits can be described by two-level systems. However, in real devices qubits are not based on a perfect two-level system, but on a two-dimensional subspace of a larger system. This makes approximations in analytic calculations unavoidable.With a simulation utilizing the Suzuki-Trotter product-formula approach for solving the time-dependent Schrödinger equation, the time-evolution of the full state of such a device based on superconducting flux qubits is investigated.
%B Big ideas in quantum matter
%C 14 Sep 2017 - 15 Sep 2017, Nijmegen (The Netherlands)
Y2 14 Sep 2017 - 15 Sep 2017
M2 Nijmegen, The Netherlands
%F PUB:(DE-HGF)24
%9 Poster
%U https://juser.fz-juelich.de/record/838256