Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Ghesquière, Anne"'
Secret key exchange relies on the creation of correlated signals, serving as the raw resource for secure communication. Thermal states, exhibit Hanbury Brown and Twiss correlations, which offer a promising avenue for generating such signals. In this
Externí odkaz:
http://arxiv.org/abs/2404.18777
A beam emitted by a displaced thermal source, incident on a beam splitter, is used as the source in a central broadcast quantum key distribution protocol. These displaced thermal states have parallels to signals produced through phase-shift keying, a
Externí odkaz:
http://arxiv.org/abs/2110.05332
We analyse a central broadcast continuous variable quantum key distribution protocol in which a beam produced by a thermal source is used to create a secret key between two parties, Alice and Bob. A beam splitter divides the initial beam into a pair
Externí odkaz:
http://arxiv.org/abs/2101.04499
In this paper we expanded the security of a central broadcast protocol using thermal states to the case in which the eavesdropper controls the source. Quantum secrecy in a continuous variable central broadcast scheme is guaranteed by the quantum corr
Externí odkaz:
http://arxiv.org/abs/2007.11884
Autor:
Newton, Elizabeth, Ghesquière, Anne, Wilson, Freya L., Varcoe, Benjamin T. H., Moseley, Martin
In this paper we consider a scheme for cryptographic key distribution based on a variation of continuous variable quantum key distribution called central broadcast. In the continuous variable central broadcast scheme, security arises from discord pre
Externí odkaz:
http://arxiv.org/abs/1912.04833
Autor:
Newton, Elizabeth, Ghesquière, Anne, Wilson, Freya L., Varcoe, Benjamin T. H., Moseley, Martin
We propose to perform quantum key distribution using quantum correlations occurring within thermal states produced by low power sources such as LED's. These correlations are exploited through the Hanbury Brown and Twiss effect. We build an optical ce
Externí odkaz:
http://arxiv.org/abs/1711.06592
Autor:
Ghesquière, Anne
To examine the loss of entanglement in a two-particle Gaussian system, we couple it to an environment and use the Non-Rotating Wave master equation to study the system's dynamics. We also present a derivation of this equation. We consider two differe
Externí odkaz:
http://arxiv.org/abs/1105.0564
Autor:
Ghesquière, Anne, Dorlas, Tony C.
The effect of a thermal reservoir is investigated on a bipartite Gaussian state. We derive a pre-Lindblad master equation in the non-rotating wave approximation for the system. We then solve the master equation for a bipartite harmonic oscillator Ham
Externí odkaz:
http://arxiv.org/abs/1004.4515
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