TY - JOUR
T1 - Universal simulation of Markovian quantum dynamics
JF - Physical Review A
Y1 - 2001
A1 - Dave Bacon
A1 - Andrew M. Childs
A1 - Isaac L. Chuang
A1 - Julia Kempe
A1 - Debbie W. Leung
A1 - Xinlan Zhou
AB - Although the conditions for performing arbitrary unitary operations to simulate the dynamics of a closed quantum system are well understood, the same is not true of the more general class of quantum operations (also known as superoperators) corresponding to the dynamics of open quantum systems. We propose a framework for the generation of Markovian quantum dynamics and study the resources needed for universality. For the case of a single qubit, we show that a single nonunitary process is necessary and sufficient to generate all unital Markovian quantum dynamics, whereas a set of processes parametrized by one continuous parameter is needed in general. We also obtain preliminary results for the unital case in higher dimensions.
VL - 64
UR - http://arxiv.org/abs/quant-ph/0008070v2
CP - 6
J1 - Phys. Rev. A
U5 - 10.1103/PhysRevA.64.062302
ER -