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20112020
most citedSecurity of Post-selection based Continuous Variable Quantum Key Distribution against Arbitrary Attacks

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quant-ph2020

Composable finite-size effects in free-space CV-QKD systems

Nedasadat Hosseinidehaj, Nathan Walk, Timothy C. Ralph

Free-space channels provide the possibility of establishing continuous-variable quantum key distribution (CV-QKD) in global communication networks. However, the fluctuating nature…

quant-ph2019

Finite-size effects in continuous-variable QKD with Gaussian post-selection

Nedasadat Hosseinidehaj, Andrew M. Lance, Thomas Symul +2

In a continuous-variable quantum key distribution (CV-QKD) protocol, which is based on heterodyne detection at the receiver, the application of a noiseless linear amplifier (NLA) o…

quant-ph2019

Stationary optomechanical entanglement between a mechanical oscillator and its measurement apparatus

C. Gut, K. Winkler, J. Hoelscher-Obermaier +9

We provide an argument to infer stationary entanglement between light and a mechanical oscillator based on continuous measurement of light only. We propose an experimentally realiz…

quant-ph2019

Quantum certification and benchmarking

J. Eisert, D. Hangleiter, N. Walk +5

Concomitant with the rapid development of quantum technologies, challenging demands arise concerning the certification and characterization of devices. The promises of the field ca…

quant-ph2019

Harnessing symmetry-protected topological order for quantum memories

Marcel Goihl, Nathan Walk, Jens Eisert +1

Spin chains with symmetry-protected edge modes are promising candidates to realize intrinsically robust physical qubits that can be used for the storage and processing of quantum i…

quant-ph2019

Teleportation-based collective attacks in Gaussian quantum key distribution

Spyros Tserkis, Nedasadat Hosseinidehaj, Nathan Walk +1

In Gaussian quantum key distribution eavesdropping attacks are conventionally modeled through the universal entangling cloner scheme, which is based on the premise that the whole e…