Two-qubit catalysis in a four-state pure bipartite system
Quantum Physics
2007-05-23 v1
Abstract
We consider a four-state pure bipartite system consisting of four qubits shared among two parties using the same Schmidt basis, two qubits per party. In some cases, transformation between two known pure states may not be possible using LOCC transformations but may be possible with the addition of a two-qubit catalyst. We provide a necessary and sufficient condition for this to occur.
Cite
@article{arxiv.quant-ph/0102067,
title = {Two-qubit catalysis in a four-state pure bipartite system},
author = {Peter H. Anspach},
journal= {arXiv preprint arXiv:quant-ph/0102067},
year = {2007}
}