Current satellite-based quantum key distribution (QKD) is limited to nighttime operations,
and the reliance on microwave communication for key distillation leads to significant delays …

The establishment of a world-wide quantum communication network relies on the synergistic
integration of satellite-based links and fiber-based networks. The first are helpful for long …

Large-scale quantum networks with thousands of nodes require scalable network protocols
and physical hardware to realize. In this paper, we introduce packet switching as a paradigm …

Global quantum communications will enable long-distance secure data transfer, networked
distributed quantum information processing, and other entanglement-enabled technologies …

A high-dimensional quantum key distribution (QKD), which adopts degrees of freedom of the
orbital angular momentum (OAM) states, is beneficial to realize secure and high-speed …

The sending-or-not-sending (SNS) protocol of the twin-field quantum key distribution can
tolerate large misalignment error and its key rate can exceed the linear bound of …

Measurement-device-independent quantum key distribution (MDI-QKD) has demonstrated
significant security in countering detection-side attacks, expanding the practical applications …

The atmospheric turbulence is the main factor that influences quantum properties of
propagating optical signals and may sufficiently degrade the performance of quantum …

Odd-parity error rejection (OPER), in particular the method of actively odd parity pairing
(AOPP), can drastically improve the asymptotic key rate of sending-or-not-sending twin-field …

Packet switching revolutionized the Internet by allowing the efficient use of network
resources for data transmission. In a previous work, we introduced packet switching in …