We propose a three-party quantum secure direct communication (QSDC) protocol with
hyperentanglement in both spatial-mode and polarization degrees of freedom. The secret …

We present two complete maximally hyperentangled state analysis protocols for photons
entangled in the polarization and spatial-mode degrees of freedom. The first protocol is a …

The Bell state plays a significant role in the fundamental tests of quantum mechanics, such
as the nonlocality of the quantum world. The Bell-state analysis is of vice importance in …

Under the balance condition of the diamond nitrogen vacancy center embedded in an
optical cavity as a result of cavity quantum electrodynamics, we present a robust …

We investigate a new approach for achieving hyperdistillation and hyperentanglement
purification operations simultaneously on two-photon systems, whose state is described by …

We propose two schemes for concentration of hyperentanglement of nonlocal multipartite
states which are simultaneously entangled in the polarization and spatial modes. One …

Hyperentangled Bell-state measurement (HBSM) is an indispensable building block for
implementing high-capacity quantum communication. Here we present a universal HBSM …

The information content of a photon system can be extended by hyperentanglement, but the
quality of hyperentanglement will be decreased by the complicated transmission loss and …

Photon loss is one of the main obstacles in long-distance quantum communication. In this
letter, we put forward a highly efficient recyclable amplification protocol for protecting the …

In quantum information processing, the quality of photon system is decreased by the
inevitable interaction with environment, which will greatly reduce the efficiency and security …