In recent years, the interdisciplinary field of quantum computing has rapidly developed and
garnered substantial interest from both academia and industry due to its ability to process …

Observables of quantum systems can possess either a discrete or a continuous spectrum.
For example, upon measurements of the photon number of a light state, discrete outcomes …

We analyze the asymptotic security of the family of Gaussian modulated quantum key
distribution protocols for continuous-variables systems. We prove that the Gaussian unitary …

Quantum cryptography (or quantum key distribution) is a state-of-the-art technique that
exploits properties of quantum mechanics to guarantee the secure exchange of secret keys …

Quantum cryptography has recently been extended to continuous-variable systems, such as
the bosonic modes of the electromagnetic field possessing continuous degrees of freedom …

We realize an end-to-end no-switching quantum key distribution protocol using continuous-
wave coherent light. We encode weak broadband Gaussian modulations onto the amplitude …

We present here an information theoretic study of Gaussian collective attacks on the
continuous variable key distribution protocols based on Gaussian modulation of coherent …

All current methods of secure communication such as public-key cryptography can
eventually be broken by faster computing. At the interface of physics and computer science …

Security bounds for key distribution protocols using coherent and squeezed states and
homodyne measurements are presented. These bounds refer to (i) general attacks and (ii) …

In this paper, we theoretically prove that the Gaussian quantum discord state of optical field
can be used to complete continuous variable (CV) quantum key distribution (QKD). The …