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Quantum Information Processing

Heralded noiseless amplification for single-photon entangled state with polarization feature

  • 01-03-2018
Published in:
Authors
Dan-Dan Wang
Yu-Yu Jin
Sheng-Xian Qin
Hao Zu
Lan Zhou
Wei Zhong
Yu-Bo Sheng
Published in
Quantum Information Processing | Issue 3/2018

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Abstract

Heralded noiseless amplification is a promising method to overcome the transmission photon loss in practical noisy quantum channel and can effectively lengthen the quantum communication distance. Single-photon entanglement is an important resource in current quantum communications. Here, we construct two single-photon-assisted heralded noiseless amplification protocols for the single-photon two-mode entangled state and single-photon three-mode W state, respectively, where the single-photon qubit has an arbitrary unknown polarization feature. After the amplification, the fidelity of the single-photon entangled state can be increased, while the polarization feature of the single-photon qubit can be well remained. Both the two protocols only require the linear optical elements, so that they can be realized under current experimental condition. Our protocols may be useful in current and future quantum information processing.

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previous article Efficient experimental design of high-fidelity three-qubit quantum gates via genetic programming
next article Steady-state entanglement and thermalization of coupled qubits in two common heat baths
Title
Heralded noiseless amplification for single-photon entangled state with polarization feature
Authors
Dan-Dan Wang
Yu-Yu Jin
Sheng-Xian Qin
Hao Zu
Lan Zhou
Wei Zhong
Yu-Bo Sheng
Publication date
01-03-2018
Publisher
Springer US
Published in
Quantum Information Processing / Issue 3/2018
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-018-1828-7
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