Abstract “Device-independent” not only represents a relaxation of the security assumptions
about the internal working of the quantum devices, but also can enhance the security of the …

Distributed secure quantum machine learning (DSQML) enables a classical client with little
quantum technology to delegate a remote quantum machine learning to the quantum server …

Entanglement concentration is of most importance in long distance quantum communication
and quantum computation. It is to distill maximally entangled states from pure partially …

Photons are the best long-range carriers of quantum information, but the unavoidable
absorption and scattering in a transmission channel places a serious limitation on viable …

Entanglement distillation is an indispensable ingredient in extended quantum
communication networks. Distillation protocols are necessarily non-deterministic and require …

The generation of entanglement between remote matter qubits has developed into a key
capability for fundamental investigations as well as for emerging quantum technologies. In …

Noiseless amplification or attenuation are two heralded filtering operations that enable
amplifying or de-amplifying a quantum state of light with no added noise, at the cost of a …

The answer to the question How far can one send a photon? depends heavily on what one
means by a photon and on what one intends to do with that photon. For direct quantum …

We propose a new protocol of asymmetric bidirectional controlled teleportation by using a
seven-qubit cluster state as the quantum channel. That is to say Alice wants to transmit an …

We propose a protocol for conditional suppression of losses in direct quantum state
transmission over a lossy quantum channel. The method works by noiselessly attenuating …