481 citations · 715 across the 11 of their papers we have counts for
11 papers
Environment-assisted bosonic quantum communications
Stefano Pirandola, Carlo Ottaviani, Christian S. Jacobsen +4
We consider a quantum relay which is used by two parties to perform several continuous-variable protocols of quantum communication, from entanglement distribution (swapping and dis…
A Compact, Mobile, Low-Threshold Squeezed Light Source
Jens Arnbak, Christian Scheffmann Jacobsen, Rayssa Bruzaca de Andrade +4
Strongly squeezed light finds many important applications within the fields of quantum metrology, quantum communication and quantum computation. However, due to the bulkiness and c…
Twin beam quantum-enhanced correlated interferometry for testing fundamental physics
S. T. Pradyumna, E. Losero, I. Ruo-Berchera +7
Quantum metrology deals with improving the resolution of instruments that are otherwise limited by shot noise and it is therefore a promising avenue for enabling scientific breakth…
Practical quantum computing on encrypted data
Kevin Marshall, Christian S. Jacobsen, Clemens Schafermeier +3
The ability to perform computations on encrypted data is a powerful tool for protecting a client's privacy, especially in today's era of cloud and distributed computing. In terms o…
Quantum cryptography with an ideal local relay
Gaetana Spedalieri, Carlo Ottaviani, Samuel L. Braunstein +4
We consider two remote parties connected to a relay by two quantum channels. To generate a secret key, they transmit coherent states to the relay, where the states are subject to a…
MDI-QKD: Continuous- versus discrete-variables at metropolitan distances
Stefano Pirandola, Carlo Ottaviani, Gaetana Spedalieri +6
In a comment, Xu, Curty, Qi, Qian, and Lo claimed that discrete-variable (DV) measurement device independent (MDI) quantum key distribution (QKD) would compete with its continuous-…
Continuous Variable Quantum Key Distribution with a Noisy Laser
Christian S. Jacobsen, Tobias Gehring, Ulrik L. Andersen
Existing experimental implementations of continuous-variable quantum key distribution require shot-noise limited operation, achieved with shot-noise limited lasers. However, loosen…
Single-Quadrature Continuous-Variable Quantum Key Distribution
Tobias Gehring, Christian S. Jacobsen, Ulrik L. Andersen
Most continuous-variable quantum key distribution schemes are based on the Gaussian modulation of coherent states followed by continuous quadrature detection using homodyne detecto…
Non-Markovian Reactivation of Quantum Relays
Stefano Pirandola, Carlo Ottaviani, Christian S. Jacobsen +4
We consider a quantum relay which is used by two parties to perform several continuous-variable protocols: Entanglement swapping, distillation, quantum teleportation, and quantum k…
Complete elimination of information leakage in continuous-variable quantum communication channels
Christian S. Jacobsen, Lars S. Madsen, Vladyslav C. Usenko +2
In all lossy communication channels realized to date, information is inevitably leaked to a potential eavesdropper. Here we present a communication protocol that does not allow for…
High-rate quantum cryptography in untrusted networks
Stefano Pirandola, Carlo Ottaviani, Gaetana Spedalieri +6
We extend the field of continuous-variable quantum cryptography to a network formulation where two honest parties connect to an untrusted relay by insecure quantum links. To genera…