TY - JOUR AU - M. Schroer AU - M. Kolodrubetz AU - W. Kindel AU - M. Sandberg AU - J. Gao AU - M. Vissers AU - D. Pappas AU - Anatoli Polkovnikov AU - Konrad Lehnert BT - Physical Review Letters DA - 2014-07 DO - 10.1103/PhysRevLett.113.050402 PY - 2014 EP - 050402 T2 - Physical Review Letters TI - Measuring a Topological Transition in an Artificial Spin-1/2 System UR - http://link.aps.org/doi/10.1103/PhysRevLett.113.050402 VL - 113 SN - 0031-9007 ER -