6 papers
All-photonic quantum key distribution beyond the single-repeater bound
Matthew S. Winnel, Sergio Juárez, Chithrabhanu Perumangatt +2
Quantum protocols require classical signaling, and when classical signals propagate faster than quantum ones, standard rate-loss limits can be surpassed. We introduce an all-photon…
Capacity-Achieving Entanglement Purification Protocol for Pauli Dephasing Channel
Ozlem Erkilic, Matthew S. Winnel, Aritra Das +4
Quantum communication enables secure information transmission and entanglement distribution, but these tasks are fundamentally limited by the capacities of quantum channels. While…
Gaussian Atemporality: When Gaussian Quantum Correlations Imply Common Cause
Minjeong Song, Jayne Thompson, Matthew S. Winnel +4
Conventionally, covariances do not distinguish between spatial and temporal correlations. The same covariance matrix could equally describe temporal correlations between observatio…
An entangled photon source for the telecom C-band based on a semiconductor-confined spin
Petros Laccotripes, Junyang Huang, Ginny Shooter +6
Multiphoton entangled states are a key resource for quantum networks and measurement-based quantum computation. Scalable protocols for generating such states using solid-state spin…
A heralded quantum amplifier of multi-photon states
Luis Villegas-Aguilar, Farzad Ghafari, Matthew S. Winnel +5
Large-scale quantum networking systems will inevitably require methods to overcome photon loss. While the no-cloning theorem forbids perfect and deterministic amplification of unkn…
Noise Transfer Approach to GKP Quantum Circuits
Timothy C Ralph, Matthew Winnel, S Nibedita Swain +1
The choice between the Schroedinger and Heisenberg pictures can significantly impact the computational resources needed to solve a problem, even though they are equivalent formulat…