In principle, quantum key distribution (QKD) offers information-theoretic security based on
the laws of physics. In practice, however, the imperfections of realistic devices might …

Quantum secure direct communication (QSDC) has been demonstrated in both fiber-based
and free-space channels using attenuated lasers. Decoy-state QSDC by exploiting four …

Quantum key distribution (QKD) enables two remote users to share a string of key bits with
information‐theoretical security. Parameter optimization is a crucial step in achieving optimal …

Quantum key distribution (QKD) relies on quantum communication to allow distant parties to
share a secure cryptographic key. Widespread adoption of QKD in current …

Blind quantum computation (BQC) is a secure quantum computation method that protects
the privacy of clients. Measurement-based quantum computation (MBQC) is a promising …

Polarization-encoded free-space quantum communication requires a quantum state source
featuring fast modulation, long-term stability, and a low intrinsic error rate. Here we present a …

Universal blind quantum computation allows a client who has limited quantum abilities to
delegate his or her private computation to an untrusted quantum server. The first universal …

Universal blind quantum computing allows users with minimal quantum resources to
delegate a quantum computation to a remote quantum server, while kee** intrinsically …

Due to its fundamental principles, quantum theory holds the promise to enhance the security
of modern cryptography, from message encryption to anonymous communication, digital …

We present a technique for remotely preparing an arbitrary single-photon hybrid state
between two distant nodes. This remote state preparation (RSP) is accomplished with a …