Physics – Quantum Physics
Scientific paper
2005-10-03
Physics
Quantum Physics
5 pages, 1 figure, comments welcome
Scientific paper
10.1103/PhysRevA.73.012312
We analyze how entanglement between two components of a bipartite system behaves under the action of local channels of the form $\cE\otimes\cI$. We show that a set of maximally entangled states is by the action of $\cE\otimes\cI$ transformed into the set of states that exhibit the same degree of entanglement. Moreover, this degree represents an upper bound on entanglement that is available at the output of the channel irrespective what is the input state of the composite system. We show that within this bound the the entanglement-induced state ordering is ``relative'' and can be changed by the action of local channels. That is, two states $\varrho_1^{(in)}$ and $\varrho_2^{(in)}$ such that the entanglement $E[\varrho_1^{(in)}]$ of the first state is larger than the entanglement $E[\varrho_2^{(in)}]$ of the second state are transformed into states $\varrho_1^{(out)}$ and $\varrho_2^{(out)}$ such that $E[\varrho_2^{(out)}] > E[\varrho_1^{(out)}]$.
Buzek Vladimir
Ziman Mario
No associations
LandOfFree
Entanglement-induced state ordering under local operations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Entanglement-induced state ordering under local operations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Entanglement-induced state ordering under local operations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-134413