Robust Self Testing of Unknown Quantum Systems into Any Entangled Two-Qubit States

Tzyh Haur Yang, Miguel Navascues

Research output: Contribution to journalArticle (Academic Journal)peer-review

98 Citations (Scopus)


Self testing is a device independent approach to estimate the state and measurement operators, without the need to assume the dimension of our quantum system. In this paper, we show that one can self test black boxes into any pure entangled two-qubit state, by performing simple Bell type experiments. The approach makes use of only one family of two-inputs/two-outputs Bell inequalities. Furthermore, we outline the sufficient conditions for one to self test any dimensional bipartite entangled state. All these methods are robust to small but inevitable experimental errors.
Original languageUndefined/Unknown
JournalPhysical Review A: Atomic, Molecular and Optical Physics
Publication statusPublished - 16 Oct 2012

Bibliographical note

14 pages, 3 figures


  • quant-ph

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