The science of quantum information has arisen over the last two decades centered on the
manipulation of individual quanta of information, known as quantum bits or qubits. Quantum …

Quantum information is a rapidly advancing area of interdisciplinary research. It may lead to
real-world applications for communication and computation unavailable without the …

The impossibility of perfectly copying (or cloning) an unknown quantum state is one of the
basic rules governing the physics of quantum systems. The processes that perform the …

We derive a computable analytical formula for the quantum fidelity between two arbitrary
multimode Gaussian states which is simply expressed in terms of their first-and second …

Quantum optical Gaussian states are a type of important robust quantum states which are
manipulatable by the existing technologies. So far, most of the important quantum …

We prove that it is impossible to distill more entanglement from a single copy of a two-mode
bipartite entangled Gaussian state via local Gaussian operations and classical …

Coherent interactions that generate negligible entanglement can still exhibit unique
quantum behaviour. This observation has motivated a search beyond entanglement for a …

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We address the role of the phase-insensitive trusted preparation and detection noise in the
security of a continuous-variable quantum key distribution, considering the Gaussian …

No-cloning theorem is fundamental for quantum mechanics and for quantum information
science that states an unknown quantum state cannot be cloned perfectly. However, we can …