General teleportation channel, singlet fraction and quasi-distillation

  title={General teleportation channel, singlet fraction and quasi-distillation},
  author={Paweł Horodecki and Michal Horodecki and Ryszard Horodecki},
  journal={arXiv: Quantum Physics},
We prove a theorem on direct relation between the optimal fidelity $f_{max}$ of teleportation and the maximal singlet fraction $F_{max}$ attainable by means of trace-preserving LQCC action (local quantum and classical communication). For a given bipartite state acting on $C^d\otimes C^d$ we have $f_{max}= {F_{max}d+1\over d+1}$. We assume completely general teleportation scheme (trace preserving LQCC action over the pair and the third particle in unknown state). The proof involves the… 

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for experi m ental real i sati on see D . B ouw m eester

  • Phys. R ev. Lett
  • 1993