Entanglement cost and distillable entanglement of symmetric states
arXiv:0708.3129
Abstract
We compute entanglement cost and distillable entanglement of states supported on symmetric subspace. Not only giving general formula, we apply them to the output states of optimal cloning machines. Surprisingly, under some settings, the optimal n to m clone and true m copies are the same in entanglement measures. However, they differ in the error exponent of entanglement dilution. We also presented a general theory of entanglement dilution which is applicable to any non-i.i.d sequence of states.
References in corpus (7)
- Optimal Cloning of Pure States
- Optimal Cloning of Pure States, Judging Single Clones
- Quantum universal variable-length source coding
- Quantum Cloning Machines of a d-level System
- Local copying and local discrimination as a study for non-locality of a set
- General formulas for fixed-length quantum entanglement concentration
- Universal entanglement concentration