Please use this identifier to cite or link to this item:
|Title:||A non-distiLIability criterion for secret correlations|
|Source:||Masanes, L.,Winter, A. (2010-01-01). A non-distiLIability criterion for secret correlations. Quantum Information and Computation 10 (1-2) : 152-159. ScholarBank@NUS Repository.|
|Abstract:||Within entanglement theory there are criteria which certify that some quantum states cannot be distilled into pure entanglement. An example is the positive partial transposition criterion. Here we present, for the first time, the analogous thing for secret correlations. We introduce a computable criterion which certifies that a probability distribution between two honest parties and an eavesdropper cannot be (asymptotically) distilled into a secret key. The existence of non-distillable correlations with positive secrecy cost, also known as bound information, is an open question. This criterion may be the key for finding bound information. However, if it turns out that this criterion does not detect bound information, then, a very interesting consequence follows: any distribution with positive secrecy cost can increase the secrecy content of another distribution. In other words, all correlations with positive secrecy cost constitute a useful resource. © Rinton Press.|
|Source Title:||Quantum Information and Computation|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Apr 20, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.