Category: Paper

Jarn de Jong, Frederik Hahn, Jens Eisert, Nathan Walk, and Anna Pappa,

Quantum 7, 1117 (2023).

Sharing multi-partite quantum entanglement between parties allows for diverse secure communication tasks to be performed. Among them, conference key agreement (CKA) – an extension of key dis…

Áron Márton and János K. Asbóth,

Quantum 7, 1116 (2023).

We consider the combined effect of readout errors and coherent errors, i.e., deterministic phase rotations, on the surface code. We use a recently developed numerical approach, via a mapping…

J. Odavić, G. Torre, N. Mijić, D. Davidović, F. Franchini, and S. M. Giampaolo,

Quantum 7, 1115 (2023).

It is widely accepted that the dynamic of entanglement in presence of a generic circuit can be predicted by the knowledge of the statistical properties of the entanglement spectrum. We teste…

Shuai Zhao, Ravishankar Ramanathan, Yuan Liu, and Paweł Horodecki,

Quantum 7, 1114 (2023).

The device-independent paradigm has had spectacular successes in randomness generation, key distribution and self-testing, however most of these results have been obtained under the assumpti…

Kevin Slagle,

Quantum 7, 1113 (2023).

Although tensor networks are powerful tools for simulating low-dimensional quantum physics, tensor network algorithms are very computationally costly in higher spatial dimensions. We introdu…

Howard M. Wiseman, Eric G. Cavalcanti, and Eleanor G. Rieffel,

Quantum 7, 1112 (2023).

A recent paper by two of us and co-workers [1], based on an extended Wigner's friend scenario, demonstrated that certain empirical correlations predicted by quantum theory (QT) violate inequ…

Nicolas PD Sawaya, Albert T Schmitz, and Stuart Hadfield,

Quantum 7, 1111 (2023).

Challenging combinatorial optimization problems are ubiquitous in science and engineering. Several quantum methods for optimization have recently been developed, in different settings includ…

Harish J. Vallury, Michael A. Jones, Gregory A. L. White, Floyd M. Creevey, Charles D. Hill, and Lloyd C. L. Hollenberg,

Quantum 7, 1109 (2023).

In the lead up to fault tolerance, the utility of quantum computing will be determined by how adequately the effects of noise can be circumvented in quantum algorithms. Hybrid quantum-classi…

Lieuwe Vinkhuijzen, Tim Coopmans, David Elkouss, Vedran Dunjko, and Alfons Laarman,

Quantum 7, 1108 (2023).

Efficient methods for the representation and simulation of quantum states and quantum operations are crucial for the optimization of quantum circuits. Decision diagrams (DDs), a well-studied…

Gregory D. Kahanamoku-Meyer,

Quantum 7, 1107 (2023).

Recently, quantum computing experiments have for the first time exceeded the capability of classical computers to perform certain computations – a milestone termed "quantum computational adv…

Filip B. Maciejewski, Zbigniew Puchała, and Michał Oszmaniec,

Quantum 7, 1106 (2023).

We introduce distance measures between quantum states, measurements, and channels based on their statistical distinguishability in generic experiments. Specifically, we analyze the average T…

Marco Fanizza, Raffaele Salvia, and Vittorio Giovannetti,

Quantum 7, 1105 (2023).

We study the problem of testing identity of a collection of unknown quantum states given sample access to this collection, each state appearing with some known probability. We show that for…

Guangkuo Liu, Ian George, and Eric Chitambar,

Quantum 7, 1104 (2023).

A powerful operational paradigm for distributed quantum information processing involves manipulating pre-shared entanglement by local operations and classical communication (LOCC). The LOCC…

Mario Berta, Fernando G. S. L. Brandão, Gilad Gour, Ludovico Lami, Martin B. Plenio, Bartosz Regula, and Marco Tomamichel,

Quantum 7, 1103 (2023).

We show that the proof of the generalised quantum Stein's lemma [Brandão & Plenio, Commun. Math. Phys. 295, 791 (2010)] is not correct due to a gap in the argument leading to Lemma III.9. He…