TY - JOUR
T1 - Adiabatic quantum computation with flux qubits, first experimental results
AU - Van Der Ploeg, S. H W
AU - Izmalkov, A.
AU - Grajear, M.
AU - Hübner, U.
AU - Linzen, S.
AU - Uchaikin, S.
AU - Wagner, Th
AU - Smirnov, A. Yu
AU - Van Den Brink, A. Maasen
AU - Amin, M. H S
AU - Zagoskin, A. M.
AU - Il'ichev, E.
AU - Meyer, H. G.
PY - 2007/6
Y1 - 2007/6
N2 - Controllable adiabatic evolution of a multi-qubit system can be used for adiabatic quantum computation (AQC). This evolution ends at a configuration where the Hamiltonian of the system encodes the solution of the problem to be solved. As a first steps towards realization of AQC we have investigated two, three and four flux qubit systems. These systems were characterized by making use of a radio-frequency method. We designed two-qubit systems with coupling energies up to several kelvins. For the three-fiux-qubit systems we determined the complete ground-state flux diagram in the three dimensional flux space around the qubits common degeneracy point. We show that the system's Hamiltonian can be completely reconstructed from our measurements. Our concept for the implementation of AQC, by making use of flux qubits, is discussed.
AB - Controllable adiabatic evolution of a multi-qubit system can be used for adiabatic quantum computation (AQC). This evolution ends at a configuration where the Hamiltonian of the system encodes the solution of the problem to be solved. As a first steps towards realization of AQC we have investigated two, three and four flux qubit systems. These systems were characterized by making use of a radio-frequency method. We designed two-qubit systems with coupling energies up to several kelvins. For the three-fiux-qubit systems we determined the complete ground-state flux diagram in the three dimensional flux space around the qubits common degeneracy point. We show that the system's Hamiltonian can be completely reconstructed from our measurements. Our concept for the implementation of AQC, by making use of flux qubits, is discussed.
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U2 - 10.1109/TASC.2007.898156
DO - 10.1109/TASC.2007.898156
M3 - Article
AN - SCOPUS:34547418198
VL - 17
SP - 113
EP - 119
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 2
ER -