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Quantum Information Processing

Single-photon controlled multi-photon polarization unitary gate based on weak cross-Kerr nonlinearities

  • 01-05-2018
Published in:
Authors
Li Dong
Yan-Fang Lin
Cen Cui
Hai-Kuan Dong
Xiao-Ming Xiu
Ya-Jun Gao
Published in
Quantum Information Processing | Issue 5/2018

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Abstract

With the help of weak cross-Kerr nonlinearities, we propose a single-photon controlled multi-photon polarization unitary gate, which can fulfill the task of n single-photon controlled one-photon polarization unitary gates, but only by adopting a nondestructive measurement and an auxiliary coherent state. Moreover, simple linear optical elements and mature existing techniques containing Homodyne measurement and classical feed-forward are applied. So this scheme provides an efficient and feasible approach for optimally fulfilling single-photon controlled multi-photon unitary gate.

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previous article Toward prethreshold gate-based quantum simulation of chemical dynamics: using potential energy surfaces to simulate few-channel molecular collisions
next article Improved separability criteria via some classes of measurements
Title
Single-photon controlled multi-photon polarization unitary gate based on weak cross-Kerr nonlinearities
Authors
Li Dong
Yan-Fang Lin
Cen Cui
Hai-Kuan Dong
Xiao-Ming Xiu
Ya-Jun Gao
Publication date
01-05-2018
Publisher
Springer US
Published in
Quantum Information Processing / Issue 5/2018
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-018-1882-1
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