Poster

Quantum annealers provide a promising approach for solving optimization problems.The theory of quantum annealing is fundamentally different from gate-based quantum computing: In quantum annealing, 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 the given problem.Quantum annealing works well in theory if the qubits can be modeled as two-level systems. However, in real devices, the qubits are not based on perfect two-level systems, but on a two-dimensional subspace of a larger system. [...]

A functional gate-based quantum computer requires a very high level of precision to implement quantum gates. As current devices get bigger, it proves difficult to maintain this level of control. [...]