Building blocks for communication over noisy quantum networks
A capacity of a quantum channel characterizes the limits of reliable communication through
a noisy quantum channel. This fundamental information-theoretic question is very well …
a noisy quantum channel. This fundamental information-theoretic question is very well …
Channel simulation: Finite blocklengths and broadcast channels
We study channel simulation under common randomness assistance in the finite-
blocklength regime and identify the smooth channel max-information as a linear program …
blocklength regime and identify the smooth channel max-information as a linear program …
Tight one-shot analysis for convex splitting with applications in quantum information theory
HC Cheng, L Gao - arXiv preprint arXiv:2304.12055, 2023 - arxiv.org
Convex splitting is a powerful technique in quantum information theory used in proving the
achievability of numerous information-processing protocols such as quantum state …
achievability of numerous information-processing protocols such as quantum state …
Quantum broadcast channel simulation via multipartite convex splitting
We show that the communication cost of quantum broadcast channel simulation under free
entanglement assistance between the sender and the receivers is asymptotically …
entanglement assistance between the sender and the receivers is asymptotically …
Partially smoothed information measures
Smooth entropies are a tool for quantifying resource trade-offs in (quantum) information
theory and cryptography. In typical bi-and multi-partite problems, however, some of the sub …
theory and cryptography. In typical bi-and multi-partite problems, however, some of the sub …
One shot entanglement assisted classical and quantum communication over noisy quantum channels: A hypothesis testing and convex split approach
Capacity of a quantum channel characterizes the limits of reliable communication through a
noisy quantum channel. This fundamental information theoretic question is very well studied …
noisy quantum channel. This fundamental information theoretic question is very well studied …
One-shot quantum state redistribution and quantum Markov chains
We revisit the task of quantum state redistribution in the one-shot setting, and design a
protocol for this task with communication cost in terms of a measure of distance from …
protocol for this task with communication cost in terms of a measure of distance from …
Quantum Broadcast Channel Simulation via Multipartite Convex Splitting
We show that the communication cost of quantum broadcast channel simulation under free
entanglement assistance between the sender and the receivers is asymptotically …
entanglement assistance between the sender and the receivers is asymptotically …
Convex-split and hypothesis testing approach to one-shot quantum measurement compression and randomness extraction
This paper concerns the problem of quantum measurement compression with side
information in the one-shot setting with shared-randomness. In this problem, Alice shares a …
information in the one-shot setting with shared-randomness. In this problem, Alice shares a …
One-shot point-to-point channel simulation
We study the problem of one-shot channel simulation of DMCs with unlimited shared
randomness. For any fixed tolerance measured in total variational distance, we propose an …
randomness. For any fixed tolerance measured in total variational distance, we propose an …