Kraus decomposition for chaotic environments including time-dependent subsystem Hamiltonians
Quantum Physics
2009-11-13 v1
Abstract
We derive an exact and explicit Kraus decomposition for the reduced density of a quantum system simultaneously interacting with time-dependent external fields and a chaotic environment of thermodynamic dimension. We test the accuracy of the Kraus decomposition against exact numerical results for a CNOT gate performed on two qubits of an -qubit statically flawed isolated quantum computer. Here the idle qubits comprise the finite environment. We obtain very good agreement even for small .
Cite
@article{arxiv.0710.1659,
title = {Kraus decomposition for chaotic environments including time-dependent subsystem Hamiltonians},
author = {Murat Cetinbas and Joshua Wilkie},
journal= {arXiv preprint arXiv:0710.1659},
year = {2009}
}