Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
A quantum GAN for entanglement detection and image classification
J. Steck, E. Behrman·Aug 9, 2024
Machine learning can be used as a systematic method to non-algorithmically program quantum computers. Quantum machine learning enables us to perform computations without breaking down an algorithm into its gate building blocks, eliminating that diffi...
Role of Error Syndromes in Teleportation Scheduling
Aparimit Chandra, Filip Rozpedek, Donald F. Towsley·Aug 8, 2024
Quantum teleportation enables quantum information transmission, but requires distribution of entangled resource states. Unfortunately, decoherence, caused by environmental interference during quantum state storage, can degrade quantum states, leading...
Mutual information fluctuations and non-stabilizerness in random circuits
Arash Ahmadi, J. Helsen, C. Karaca +1 more·Aug 7, 2024
The emergence of quantum technologies has brought much attention to the characterization of quantum resources as well as the classical simulatability of quantum processes. Quantum resources, as quantified by non-stabilizerness, have in one theoretica...
Entanglement-enhanced learning of quantum processes at scale
A. Seif, Senrui Chen, Swarnadeep Majumder +6 more·Aug 6, 2024
Learning unknown processes affecting a quantum system reveals underlying physical mechanisms and enables suppression, mitigation, and correction of unwanted effects. Describing a general quantum process requires an exponentially large number of param...
Investigating and improving student understanding of the basics of quantum computing
Peter Hu, Yangqiuting Li, Chandralekha Singh·Aug 6, 2024
Quantum information science and engineering (QISE) is a rapidly developing field that leverages the skills of experts from many disciplines to utilize the potential of quantum systems in a variety of applications. It requires talent from a wide varie...
High Purcell-enhancement in quantum-dot hybrid circular Bragg grating cavities for GHz-clockrate generation of indistinguishable photons
Lucas Rickert, Daniel A. Vajner, Martin von Helversen +8 more·Aug 5, 2024
We present Purcell-enhanced ($F_\mathrm{P}>25$) semiconductor InAs quantum dot decay times of $T_1<30\,$ps, enabled by deterministic hybrid circular Bragg gratings (hCBGs). We investigate the benefits of these short $T_1$ times on the two-photon indi...
A Novel Stabilizer-based Entanglement Distillation Protocol for Qudits
Christopher Popp, Tobias C. Sutter, Beatrix C. Hiesmayr·Aug 5, 2024
Entanglement distillation, the process of converting weakly entangled states into maximally entangled ones using Local Operations and Classical Communication (LOCC), is pivotal for robust entanglement-assisted quantum information processing in error-...
Scrambling-induced entanglement suppression in noisy quantum circuits
Lea Haas, Christian Carisch, O. Zilberberg·Aug 5, 2024
Quantum information scrambling is a process happening during thermalization in quantum systems and describes the delocalization of quantum information. It is closely tied to entanglement, a key resource for quantum technologies and an order parameter...
Non-symmetric GHZ states: weighted hypergraph and controlled-unitary graph representations
Hrachya Zakaryan, Konstantinos-Rafail Revis, Zahra Raissi·Aug 5, 2024
Non-symmetric GHZ states ($n$-GHZ$_\alpha$), defined by unequal superpositions of $|00...0>$ and $|11...1>$, naturally emerge in experiments due to decoherence, control errors, and state preparation imperfections. Despite their relevance in quantum c...
Classical Communication Cost of a Bipartite Quantum Channel Assisted by Non-Signaling Correlations
Chengkai Zhu, Xuanqiang Zhao, Xin Wang·Aug 5, 2024
Understanding the classical communication cost of simulating a quantum channel is a fundamental problem in quantum information theory, which becomes even more intriguing when considering the role of non-locality in quantum information processing. Thi...
Compact multi-threshold quantum information driven ansatz for strongly interactive lattice spin models
Fabio Tarocco, Davide Materia, Leonardo Ratini +1 more·Aug 5, 2024
Quantum algorithms based on the variational principle have found applications in diverse areas with a huge flexibility. But as the circuit size increases the variational landscapes become flattened, causing the so-called Barren plateau phenomena. Thi...
Quantum Clustering for Cybersecurity
Walid El Maouaki, Nouhaila Innan, Alberto Marchisio +3 more·Aug 5, 2024
In this study, we develop a novel quantum machine learning (QML) framework to analyze cybersecurity vulnerabilities using data from the 2022 CISA Known Exploited Vulnerabilities catalog, which includes detailed information on vulnerability types, sev...
Quantum Information Theory on Sparse Wave Functions and Applications for Quantum Chemistry
Davide Materia, Leonardo Ratini, Leonardo Guidoni·Aug 5, 2024
In recent years Quantum Computing prominently entered in the field of Computational Chemistry, importing and transforming computational methods and ideas originally developed within other disciplines, such as Physics, Mathematics and Computer Science...
Long-lived metastable-qubit memory
Xiaoyang Shi, Jasmine Sinanan-Singh, Kyle DeBry +3 more·Aug 2, 2024
Coherent storage of quantum information is crucial to many quantum technologies. Long coherence times have been demonstrated in trapped-ion qubits, typically using the hyperfine levels within the ground state of a single ion. However, recent research...
Optimizing quantum error correction protocols with erasure qubits
Shouzhen Gu, Yotam Vaknin, Alex Retzker +1 more·Aug 1, 2024
Erasure qubits offer a promising avenue toward reducing the overhead of quantum error correction (QEC) protocols. However, they require additional operations, such as erasure checks, that may add extra noise and increase runtime of QEC protocols. To ...
Perfect Wave Transfer in Continuous Quantum Systems
Per Moosavi, Matthias Christandl, Gian Michele Graf +1 more·Aug 1, 2024
The transfer of information from one part of a quantum system to another is fundamental to the understanding and design of quantum information processing devices. In the realm of discrete systems such as spin chains, inhomogeneous networks have been ...
An Open-Source Library for Information Reconciliation in Continuous-Variable QKD
E. Cil, Laurent Schmalen·Aug 1, 2024
This paper presents an easy-to-use open-source software library for continuous-variable quantum key distribution (CV-QKD) systems. The library, written in C++, simplifies the crucial task of information reconciliation, ensuring that both communicatin...
Bayesian mitigation of measurement errors in multiqubit experiments
F. Cosco, F. Plastina, N. L. Gullo·Aug 1, 2024
In Phys. Rev. A 108, L060402 (2023), we introduced a Bayesian measurement error mitigation algorithm, which leveraged complete information from the readout signal, and validated the protocol on a quantum device with five superconducting qubits. Here,...
Resource-efficient algorithm for estimating the trace of quantum state powers
Myeongjin Shin, Junseo Lee, Seungwoo Lee +1 more·Aug 1, 2024
Estimating the trace of quantum state powers, Tr(ρk), for k identical quantum states is a fundamental task with numerous applications in quantum information processing, including nonlinear function estimation of quantum states and entanglement detect...
Scaling and Assigning Resources on ION Trap QCCD Architectures
Anabel Ovide, Daniele Cuomo, C. G. Almudéver·Aug 1, 2024
Ion trap technologies have earned significant attention as potential candidates for quantum information processing due to their long decoherence times and precise manipulation of individual qubits, distinguishing them from other candidates in the fie...