Deterministic local doubling of W states

Can Yesilyurt, Sinan Bugu, Fatih Ozaydin, Azmi Ali Altintas, Mark Tame, Lan Yang, Şahin Kaya Özdemir

Research output: Contribution to journalArticle

12 Scopus citations


In large quantum systems, multipartite entanglement can be found in many inequivalent classes. Preparing states of arbitrary size in different classes is important for performing a wide range of quantum protocols. W states, in particular, constitute a class with a variety of quantum networking protocols. However, all known schemes for preparing polarization encoded photonic W states are probabilistic, with resource requirements increasing at least sub-exponentially. We propose a deterministic scheme for preparing W states of size of any power of 2, which requires no prior entanglement and can be performed locally. We introduce an all-optical setup that can efficiently double the size of W states of arbitrary size. Our scheme advances the use of W states in real-world quantum networks and could be extended to other physical systems.

Original languageEnglish (US)
Pages (from-to)2313-2319
Number of pages7
JournalJournal of the Optical Society of America B: Optical Physics
Issue number11
Publication statusPublished - Nov 1 2016


All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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