%0 Journal Article %J Physical Review A %D 2005 %T Unified derivations of measurement-based schemes for quantum computation %A Andrew M. Childs %A Debbie W. Leung %A Michael A. Nielsen %X We present unified, systematic derivations of schemes in the two known measurement-based models of quantum computation. The first model (introduced by Raussendorf and Briegel [Phys. Rev. Lett., 86, 5188 (2001)]) uses a fixed entangled state, adaptive measurements on single qubits, and feedforward of the measurement results. The second model (proposed by Nielsen [Phys. Lett. A, 308, 96 (2003)] and further simplified by Leung [Int. J. Quant. Inf., 2, 33 (2004)]) uses adaptive two-qubit measurements that can be applied to arbitrary pairs of qubits, and feedforward of the measurement results. The underlying principle of our derivations is a variant of teleportation introduced by Zhou, Leung, and Chuang [Phys. Rev. A, 62, 052316 (2000)]. Our derivations unify these two measurement-based models of quantum computation and provide significantly simpler schemes. %B Physical Review A %V 71 %8 2005/3/17 %G eng %U http://arxiv.org/abs/quant-ph/0404132v2 %N 3 %! Phys. Rev. A %R 10.1103/PhysRevA.71.032318