We demonstrate the spin to orbital angular momentum transfer in frequency upconversion
with structured light beams. A vector vortex is coupled to a circularly polarized Gaussian …

High-dimensional entanglement is a critical foundation for the growing demand for
information capacity to implement the high-capacity quantum task. Here, we report …

In a continuous variable quantum key distribution (CV-QKD) system, strong Einstein–
Podolsky–Rosen entangled states can significantly boost the robustness and distance for …

We explore a degenerate four-wave mixing process induced by transversely structured light
beams in a rubidium vapor cell. In particular, we consider the nonlinear interaction driven by …

Squeezed states belong to the most prominent non-classical resources. They have
compelling applications in precise measurement, quantum computation, and detection …

An experimental scheme is proposed for building massively multipartite entangled states
using both the spatial and the frequency modes of an optical parametric oscillator. We …

The squeezed state is important in quantum metrology and quantum information. The most
effective generation tool known is the optical parametric oscillator (OPO). Currently, only the …

We demonstrate experimentally the simultaneous generation and detection of two types of
continuous variable nonclassical states from one type-0 phase-matching optical parametric …

Quantum computers, leveraging the principles of quantum mechanics, hold the potential to
surpass classical computers in numerous applications, with implications across various …

Quantum entanglement is a fundamental resource for various quantum applications and
generation of large-scale entanglement is a key quantum technology. In recent years …