Optimal local discrimination of two multipartite pure states

@article{citeulike:1324428, abstract = {In a recent paper, Walgate et al. (Phys. Rev. Lett. 85 (2000) 4972) demonstrated that any two orthogonal multipartite pure states can be optimally distinguished using only local operations. We utilise their result to show that this is true for any two multipartite pure states, in the sense of inconclusive discrimination. There are also certain regimes of conclusive discrimination for which the same also applies, although we can only conjecture that the result is true for all conclusive regimes. We also discuss a class of states that can be distinguished locally according to any discrimination measure, as they can be locally recreated in the possession of one party. A consequence of this is that any two maximally entangled states can always be optimally discriminated locally, according to any figure of merit.}, author = {Virmani, S. and Sacchi, M. F. and Plenio, M. B. and Markham, D. }, citeulike-article-id = {1324428}, comment = {Referenced in Khasin/Kosloff/Steinitz's "Negativity as a distance from a separable state."}, journal = {Physics Letters A}, keywords = {descrimination, local, multipartite, schmidt}, month = {September}, number = {2}, pages = {62--68}, posted-at = {2007-05-24 07:25:17}, priority = {3}, title = {Optimal local discrimination of two multipartite pure states}, url = {http://www.sciencedirect.com/science/article/B6TVM-43VYCXF-1/2/83ed2f7fa68b240cede8fcfaf507dabb}, volume = {288}, year = {2001} }

TY - JOUR ID - citeulike:1324428 L3 - citeulike-article-id:1324428 TI - Optimal local discrimination of two multipartite pure states JF - Physics Letters A VL - 288 IS - 2 SP - 62 EP - 68 N2 - In a recent paper, Walgate et al. (Phys. Rev. Lett. 85 (2000) 4972) demonstrated that any two orthogonal multipartite pure states can be optimally distinguished using only local operations. We utilise their result to show that this is true for any two multipartite pure states, in the sense of inconclusive discrimination. There are also certain regimes of conclusive discrimination for which the same also applies, although we can only conjecture that the result is true for all conclusive regimes. We also discuss a class of states that can be distinguished locally according to any discrimination measure, as they can be locally recreated in the possession of one party. A consequence of this is that any two maximally entangled states can always be optimally discriminated locally, according to any figure of merit. KW - descrimination KW - local KW - multipartite KW - schmidt N1 - Referenced in Khasin/Kosloff/Steinitz's "Negativity as a distance from a separable state." AU - Virmani, S AU - Sacchi, MF AU - Plenio, MB AU - Markham, D PY - 2001/09/17/ UR - http://www.sciencedirect.com/science/article/B6TVM-43VYCXF-1/2/83ed2f7fa68b240cede8fcfaf507dabb ER -