An optical fusion gate for w-states

Sahin Ozdemir, E. Matsunaga, T. Tashima, T. Yamamoto, M. Koashi, N. Imoto

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

We introduce a simple optical gate to fuse arbitrary-size polarization entangled W-states to prepare larger W-states. The gate requires a polarizing beam splitter (PBS), a half-wave plate (HWP) and two photon detectors. We study, numerically and analytically, the necessary resource consumption for preparing larger W-states by fusing smaller ones with the proposed fusion gate. We show analytically that resource requirement scales at most sub-exponentially with the increasing size of the state to be prepared. We numerically determine the resource cost for fusion without recycling where W-states of arbitrary size can be optimally prepared. Moreover, we introduce another strategy that is basedon recycling and outperforms the optimal strategy for the non-recycling case.

Original languageEnglish (US)
Article number103003
JournalNew Journal of Physics
Volume13
DOIs
StatePublished - Oct 1 2011

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resources
fusion
recycling
fuses
beam splitters
costs
requirements
detectors
photons
polarization

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Ozdemir, S., Matsunaga, E., Tashima, T., Yamamoto, T., Koashi, M., & Imoto, N. (2011). An optical fusion gate for w-states. New Journal of Physics, 13, [103003]. https://doi.org/10.1088/1367-2630/13/10/103003
Ozdemir, Sahin ; Matsunaga, E. ; Tashima, T. ; Yamamoto, T. ; Koashi, M. ; Imoto, N. / An optical fusion gate for w-states. In: New Journal of Physics. 2011 ; Vol. 13.
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Ozdemir, S, Matsunaga, E, Tashima, T, Yamamoto, T, Koashi, M & Imoto, N 2011, 'An optical fusion gate for w-states', New Journal of Physics, vol. 13, 103003. https://doi.org/10.1088/1367-2630/13/10/103003

An optical fusion gate for w-states. / Ozdemir, Sahin; Matsunaga, E.; Tashima, T.; Yamamoto, T.; Koashi, M.; Imoto, N.

In: New Journal of Physics, Vol. 13, 103003, 01.10.2011.

Research output: Contribution to journalArticle

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Ozdemir S, Matsunaga E, Tashima T, Yamamoto T, Koashi M, Imoto N. An optical fusion gate for w-states. New Journal of Physics. 2011 Oct 1;13. 103003. https://doi.org/10.1088/1367-2630/13/10/103003