Local distinguishability of quantum states may be determined by entanglement alone
Year: 2011
Type: preprint
Abstract: It is shown that the number of orthogonal density matrices that can be perfectly distinguished locally is bounded above by the total dimension over the average of maximal pure state entanglement in the supports of the density matrices. Thus we establish a direct connection between pure state entanglement and local distinguishability for any se t of orthogonal quantum states, pure or mixed. The result holds for any finite dimensional composite quantum system irrespective of the multipartite structure and dimensions of the individual su bsystems.
Source: arXiv (Cornell University)
Author: Somshubhro Bandyopadhyay
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2350876962