Local expansion of photonic W state using a polarization-dependent beamsplitter

Toshiyuki Tashima; Şahin Kaya Özdemir; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto

doi:10.1088/1367-2630/11/2/023024

Local expansion of photonic W state using a polarization-dependent beamsplitter

Toshiyuki Tashima, Şahin Kaya Özdemir, Takashi Yamamoto, Masato Koashi, Nobuyuki Imoto

Engineering Science and Mechanics

Research output: Contribution to journal › Article › peer-review

70 Scopus citations

Abstract

We propose a simple probabilistic optical gate to expand polarization entangled W states. The gate uses one polarization-dependent beamsplitter and a horizontally polarized single photon as an ancilla. The gate post-selectively expands N-photon W states to (N+1)-photon W states. A feasibility analysis considering the realistic experimental conditions shows that the scheme is within the reach of the current quantum optical technologies.

Original language	English (US)
Article number	023024
Journal	New Journal of Physics
Volume	11
DOIs	https://doi.org/10.1088/1367-2630/11/2/023024
State	Published - Feb 11 2009

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1088/1367-2630/11/2/023024

Cite this

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abstract = "We propose a simple probabilistic optical gate to expand polarization entangled W states. The gate uses one polarization-dependent beamsplitter and a horizontally polarized single photon as an ancilla. The gate post-selectively expands N-photon W states to (N+1)-photon W states. A feasibility analysis considering the realistic experimental conditions shows that the scheme is within the reach of the current quantum optical technologies.",

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AU - Tashima, Toshiyuki

AU - Özdemir, Şahin Kaya

AU - Yamamoto, Takashi

AU - Koashi, Masato

AU - Imoto, Nobuyuki

PY - 2009/2/11

Y1 - 2009/2/11

N2 - We propose a simple probabilistic optical gate to expand polarization entangled W states. The gate uses one polarization-dependent beamsplitter and a horizontally polarized single photon as an ancilla. The gate post-selectively expands N-photon W states to (N+1)-photon W states. A feasibility analysis considering the realistic experimental conditions shows that the scheme is within the reach of the current quantum optical technologies.

AB - We propose a simple probabilistic optical gate to expand polarization entangled W states. The gate uses one polarization-dependent beamsplitter and a horizontally polarized single photon as an ancilla. The gate post-selectively expands N-photon W states to (N+1)-photon W states. A feasibility analysis considering the realistic experimental conditions shows that the scheme is within the reach of the current quantum optical technologies.

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Local expansion of photonic W state using a polarization-dependent beamsplitter

Abstract

All Science Journal Classification (ASJC) codes

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