English

Dynamical Generation of Noiseless Quantum Subsystems

Quantum Physics 2009-11-06 v1

Abstract

We present control schemes for open quantum systems that combine decoupling and universal control methods with coding procedures. By exploiting a general algebraic approach, we show how appropriate encodings of quantum states result in obtaining universal control over dynamically-generated noise-protected subsystems with limited control resources. In particular, we provide an efficient scheme for performing universal encoded quantum computation in a wide class of systems subjected to linear non-Markovian quantum noise and supporting Heisenberg-type internal Hamiltonians.

Keywords

Cite

@article{arxiv.quant-ph/0002072,
  title  = {Dynamical Generation of Noiseless Quantum Subsystems},
  author = {Lorenza Viola and Emanuel Knill and Seth Lloyd},
  journal= {arXiv preprint arXiv:quant-ph/0002072},
  year   = {2009}
}

Comments

4 pages, no figures; REVTeX style