9 papers · 1 filter
Improving quantum communication rates with permutation-invariant codes
Sujeet Bhalerao, Felix Leditzky
In this work we improve the quantum communication rates of various quantum channels of interest using permutation-invariant quantum codes. We focus in particular on parametrized fa…
On the distinguishability of geometrically uniform quantum states
Juntai Zhou, Stefano Chessa, Eric Chitambar +1
A geometrically uniform (GU) ensemble is a uniformly weighted quantum state ensemble generated from a fixed state by a unitary representation of a finite group . In this work we…
Capacities of Entanglement Distribution From a Central Source
Xinan Chen, Stefano Chessa, Ian George +2
Distribution of entanglement is an essential task in quantum information processing and the realization of quantum networks. In our work, we theoretically investigate the scenario…
Localizing multipartite entanglement with local and global measurements
Christopher Vairogs, Samihr Hermes, Felix Leditzky
We study the task of localizing multipartite entanglement in pure quantum states onto a subsystem by measuring the remaining systems. To this end, we fix a multipartite entanglemen…
Efficient and Low-Backaction Quantum Measurement Using a Chip-Scale Detector
Eric I. Rosenthal, Christian M. F. Schneider, Maxime Malnou +13
Superconducting qubits are a leading platform for scalable quantum computing and quantum error correction. One feature of this platform is the ability to perform projective measure…
Playing Games with Multiple Access Channels
Felix Leditzky, Mohammad A. Alhejji, Joshua Levin +1
Communication networks have multiple users, each sending and receiving messages. A multiple access channel (MAC) models multiple senders transmitting to a single receiver, such as…