Few-mode fibers (FMFs) are promising for advancements in transmission capacity in
classical and quantum communications. However, the inherent modal crosstalk limits the …

Measurement-device-independent quantum key distribution (MDI-QKD) provides us a
powerful approach to resist all attacks at detection side. Besides the unconditional security …

The large number of spatial modes supported by standard multimode fibers is a promising
platform for boosting the channel capacity of quantum and classical communications by …

Cylindrical vector beams (CVBs), which possess polarization distribution of rotational
symmetry on the transverse plane, can be developed in many optical technologies …

This paper proposes a new private comparison protocol based on four-dimensional three-
particle GHZ-like states. The QPC protocol allows two participants with limited quantum …

Transverse spatial mode of light is crucial in high-dimensional quantum key distribution
(QKD). However, applications in realistic scenarios suffer from mode-dependent loss and …

Qudit, a high-dimensional quantum system, can provide a larger Hilbert space, and it has
been shown that the larger Hilbert space has remarkable advantages over the smaller one …

Quantum gates are essential for the realization of quantum computer and have been
implemented in various types of two-level systems. However, high-dimensional quantum …

Information security is a crucial part of a nation's core competitiveness. Based on the funda
mental principle of quantum mechanics, quantum key distribution (QKD) realizes information …

Perfect optical vortex (POV) beams have attracted extensive attention because they have the
advantage of a radial profile that is independent of orbital angular momentum. To date, it is …