Restoring quantum communication efficiency over high loss optical fibers

FA Mele, L Lami, V Giovannetti - Physical Review Letters, 2022 - APS
In the absence of quantum repeaters, quantum communication proved to be nearly
impossible across optical fibers longer than≳ 20 km due to the drop of transmissivity below …

Quantum queuing delay

W Dai, T Peng, MZ Win - IEEE Journal on Selected Areas in …, 2020 - ieeexplore.ieee.org
Queuing delay is an essential topic in the design of quantum networks. This paper
introduces a tractable model for analyzing the queuing delay of quantum data, referred to as …

Overlap times in tandem queues: Identically distributed station case

R Gao, J Pender - arxiv preprint arxiv:2311.01261, 2023 - arxiv.org
In this paper, we investigate overlap times in a two-dimensional infinite server tandem
queue. Specifically, we analyze the amount of time that a pair of customers spend …

Quantum optical communication in the presence of strong attenuation noise

FA Mele, L Lami, V Giovannetti - Physical Review A, 2022 - APS
Is quantum communication possible over an optical fiber with transmissivity λ≤ 1/2? The
answer is well known to be negative if the environment with which the incoming signal …

The classical capacity of additive quantum queue-channels

P Mandayam, K Jagannathan… - IEEE Journal on …, 2020 - ieeexplore.ieee.org
We consider a setting where a stream of qubits is processed sequentially. We derive
fundamental limits on the rate at which classical information can be transmitted using qubits …

Capacity Achieving Channel Codes for an Erasure Queue-Channel

J Mandalapu, K Jagannathan… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
We consider a queue-channel model that captures the waiting time-dependent degradation
of information bits as they wait to be transmitted. Such a scenario arises naturally in quantum …

Quantum networks: state transmission and network operation

W Dai - 2020 - dspace.mit.edu
The model employs a dynamic programming formalism and accounts for practical aspects
such as the finite memory size. Using this model, we develop a cognitive-memory-based …

The classical capacity of quantum jackson networks with waiting time-dependent erasures

J Mandalapu, K Jagannathan - 2022 IEEE Information Theory …, 2022 - ieeexplore.ieee.org
We study the fundamental limits of classical communication using quantum states that
decohere as they traverse through a network of queues. We consider a network of …