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 journalArticlepeer-review

28 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
StatePublished - Nov 1 2016

All Science Journal Classification (ASJC) codes

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


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