Integrated photonics provides a powerful approach for develo** compact, stable, and
scalable architectures for the generation, manipulation, and detection of quantum states of …

Device-independent quantum secure direct communication (DI-QSDC) can relax the
security assumptions about the devices' internal working, and effectively enhance QSDC's …

Interference, which refers to the phenomenon associated with the superposition of waves,
has played a crucial role in the advancement of physics and finds a wide range of …

High-dimensional entanglement promises to increase the information capacity of photons
and is now routinely generated, exploiting spatiotemporal degrees of freedom of single …

Quantum secure direct communication (QSDC) can directly transmit secret messages
through quantum channel without keys. The typical entanglement-based QSDC protocol …

The rising demand for transmission capacity in optical networks has motivated steady
interest in expansion beyond the standard C-band (1530–1565 nm) into the adjacent L …

Wavelength conversion via four-wave mixing holds great promise for the construction of
broadband and tunable light sources at wavelengths beyond 2 μm. In this work, we design …

Entanglement distribution is at the heart of most quantum communication protocols.
Inevitable loss of photons along quantum channels is a major obstacle for distributing …

We demonstrate a chip-integrated semiconductor source that combines polarization and
frequency entanglement, allowing the generation of entangled biphoton states in a hybrid …

Photon loss is the fundamental issue toward the development of quantum networks. To
circumvent loss quantum repeaters were proposed, which need high-performance quantum …