# Complete nondestructive analysis of two-photon six-qubit hyperentangled Bell states assisted by cross-Kerr nonlinearity

@article{Liu2016CompleteNA, title={Complete nondestructive analysis of two-photon six-qubit hyperentangled Bell states assisted by cross-Kerr nonlinearity}, author={Qian Liu and Guan-Yu Wang and Qing Ai and Mei Zhang and Fuguo Deng}, journal={Scientific Reports}, year={2016}, volume={6} }

Hyperentanglement, the entanglement in several degrees of freedom (DOFs) of a quantum system, has attracted much attention as it can be used to increase both the channel capacity of quantum communication and its security largely. Here, we present the first scheme to completely distinguish the hyperentangled Bell states of two-photon systems in three DOFs with the help of cross-Kerr nonlinearity without destruction, including two longitudinal momentum DOFs and the polarization DOF. We use cross…

## 39 Citations

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The hyper-ECP can extract all the useful entanglement source, and the success probability can reach the theory limit with the help of iteration, which makes it useful in long-distance quantum communication in the future.

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- PhysicsOptics express
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This is the first complete hyperentangled Bell state analysis scheme for polarization and time-bin hyperentangling states, and it can provide new avenues for high-capacity, long-distance quantum communication.

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The first high-capacity quantum private comparison protocol is proposed to solve the comparison problem of equality of two parties’ secret inputs without revealing them out and can obtain the good application to compare the secret inputs securely, efficiently and feasibly.

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- PhysicsOptics express
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This complete analysis protocol for complete analysis of 16 hyperentangled Bell states of two-photon system in the polarization and the first longitudinal momentum degrees of freedom allows the transmission of log216=4 bits of classical information via quantum hyperdense coding scheme, which is the upper bound of the transmission capacity of the quantum hypercoding scheme.

Optical scheme for generating hyperentanglement having photonic qubit and time-bin via quantum dot and cross-Kerr nonlinearity

- PhysicsScientific Reports
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We design an optical scheme to generate hyperentanglement correlated with degrees of freedom (DOFs) via quantum dots (QDs), weak cross-Kerr nonlinearities (XKNLs), and linearly optical apparatuses…

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