Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum Computation of Electronic Structure with Projector Augmented-Wave Method and Plane Wave Basis Set.
Aleksei V Ivanov, Andrew Patterson, Marius Bothe +6 more·Aug 6, 2024
Quantum simulation of materials is a promising application area of quantum computers. To practically realize this promise, we must reduce quantum resources while maintaining accuracy. In electronic structure calculations on classical computers, resou...
Modular Architectures and Entanglement Schemes for Error-Corrected Distributed Quantum Computation
Siddhant Singh, Fenglei Gu, Sébastian de Bone +3 more·Aug 5, 2024
Connecting multiple smaller qubit modules by generating high-fidelity entangled states is a promising path for scaling quantum computing hardware. The performance of such a modular quantum computer is highly dependent on the quality and rate of entan...
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-...
Polynomial-Time Classical Simulation of Hidden Shift Circuits via Confluent Rewriting of Symbolic Sums
Matthew Amy, Lucas Shigeru Stinchcombe·Aug 5, 2024
Implementations of Roetteler's shifted bent function algorithm have in recent years been used to test and benchmark both classical simulation algorithms and quantum hardware. These circuits have many favorable properties, including a tunable amount o...
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...
Assessing the Requirements for Industry Relevant Quantum Computation
Anna M. Krol, Marvin Erdmann, Ewan Munro +2 more·Aug 5, 2024
In this paper, we use open-source tools to perform quantum resource estimation to assess the requirements for industry-relevant quantum computation. Our analysis uses the problem of industrial shift scheduling in manufacturing and the Quantum Industr...
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...
Adaptive Learning for Quantum Linear Regression
Costantino Carugno, Maurizio Ferrari Dacrema, Paolo Cremonesi·Aug 5, 2024
The recent availability of quantum annealers as cloud-based services has enabled new ways to handle machine learning problems, and several relevant algorithms have been adapted to run on these devices. In a recent work, linear regression was formulat...
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...
Quantum Transfer Learning for MNIST Classification Using a Hybrid Quantum-Classical Approach
Soumyadip Sarkar·Aug 5, 2024
We implement a hybrid quantum-classical model for image classification that compresses MNIST digit images into a low-dimensional feature space and then maps these features onto a 5-qubit quantum state. First, an autoencoder compresses each $28\times2...
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...
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...
Approximating under the Influence of Quantum Noise and Compute Power
Simon Thelen, Hila Safi, Wolfgang Mauerer·Aug 5, 2024
The quantum approximate optimisation algorithm (QAOA) and its variants are at the core of many scenarios that aim at combining the power of quantum computers (QC) and classical high-performance computing (HPC) appliances for combinatorial optimisatio...
Realizing a mechanical dynamical Casimir effect with a low-frequency oscillator
Tian Jiang, Jun Jing·Aug 5, 2024
We propose to realize a mechanical dynamical Casimir effect (MDCE) in a hybrid optomechanical system consisting of a cavity mode, a low-frequency mechanical oscillator, and a two-level atomic system. Described by the effective Hamiltonian, the mechan...
Bayesian rational agents in iterated quantum games
John B. DeBrota, Peter J. Love·Aug 4, 2024
We apply a Bayesian agent-based framework inspired by QBism to iterations of two quantum games, the CHSH game and the quantum prisoners' dilemma. In each two-player game, players hold beliefs about an amount of shared entanglement and about the actio...
Invested and Potential Magic Resources in Measurement-Based Quantum Computation.
Gong-Chu Li, Lei Chen, Si-Qi Zhang +8 more·Aug 4, 2024
Magic states and magic gates are crucial for achieving universal quantum computation, but important questions about how magic resources should be implemented to attain maximal quantum advantage have remained unexplored, especially in the context of m...
Using detector likelihood for benchmarking quantum error correction
Ian Hesner, Bence Het'enyi, James R. Wootton·Aug 4, 2024
The behavior of real quantum hardware differs strongly from the simple error models typically used when simulating quantum error correction. Error processes are far more complex than simple depolarizing noise applied to single gates, and error rates ...
Simulation of a Three‐Nucleons System Transition on Quantum Circuits
Luca Nigro, C. Barbieri, Enrico Prati·Aug 4, 2024
Quantum computers have proven to be effective in simulating many quantum systems. Simulating nuclear processes and state preparation poses significant challenges, even for traditional supercomputers. This study demonstrates the feasibility of a compl...