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One of the outstanding challenges in contemporary science and technology is building a quantum computer that is useful in applications. By starting from an estimate of the algorithm success rate, we can explicitly connect gate fidelity to…

Quantum Physics · Physics 2026-03-20 R. Barends , F. K. Wilhelm

With quantum computers of significant size now on the horizon, we should understand how to best exploit their initially limited abilities. To this end, we aim to identify a practical problem that is beyond the reach of current classical…

Quantum Physics · Physics 2018-09-26 Andrew M. Childs , Dmitri Maslov , Yunseong Nam , Neil J. Ross , Yuan Su

Deep neural networks have established themselves as one of the most promising machine learning techniques. Training such models at large scales is often parallelized, giving rise to the concept of distributed deep learning. Distributed…

Quantum Physics · Physics 2022-11-15 Lirandë Pira , Chris Ferrie

We introduce the first large-scale dataset, MNISQ, for both the Quantum and the Classical Machine Learning community during the Noisy Intermediate-Scale Quantum era. MNISQ consists of 4,950,000 data points organized in 9 subdatasets.…

With near-term quantum devices available and the race for fault-tolerant quantum computers in full swing, researchers became interested in the question of what happens if we replace a supervised machine learning model with a quantum…

Quantum Physics · Physics 2021-04-20 Maria Schuld

There is no unique way to encode a quantum algorithm into a quantum circuit. With limited qubit counts, connectivities, and coherence times, circuit optimization is essential to make the best use of near-term quantum devices. We introduce…

Quantum computing holds great potential for advancing the limitations of machine learning algorithms to handle higher dimensions of data and reduce overall training parameters in deep learning (DL) models. This study uses a trainable…

Quantum Physics · Physics 2023-12-05 Hao-Yuan Chen , Yen-Jui Chang , Shih-Wei Liao , Ching-Ray Chang

Quantum machine learning aims to release the prowess of quantum computing to improve machine learning methods. By combining quantum computing methods with classical neural network techniques we aim to foster an increase of performance in…

High Energy Physics - Phenomenology · Physics 2021-03-17 Andrew Blance , Michael Spannowsky

Quantum computing has the potential to outperform classical computers and is expected to play an active role in various fields. In quantum machine learning, a quantum computer has been found useful for enhanced feature representation and…

Quantum Physics · Physics 2019-11-26 Masaya Watabe , Kodai Shiba , Masaru Sogabe , Katsuyoshi Sakamoto , Tomah Sogabe

It is one of the most fundamental objectives in quantum information science to understand the boundary between the computational power of classical and quantum computers. One possible avenue to explore this boundary is to identify classes…

Quantum Physics · Physics 2025-03-28 Christophe Piveteau

During the last ten years, superconducting circuits have passed from being interesting physical devices to becoming contenders for near-future useful and scalable quantum information processing (QIP). Advanced quantum simulation experiments…

Quantum Physics · Physics 2017-10-10 G. Wendin

In the NISQ-era of quantum computing, we should not expect to see quantum devices that provide an exponential improvement in runtime for practical problems, due to the lack of error correction and small number of qubits available.…

Quantum Physics · Physics 2019-07-02 Samuel S. Mendelson , Robert W. Strand , Guy B. Oldaker , Jacob M. Farinholt

The current noisy intermediate-scale quantum (NISQ) era is characterized by substantial errors and noise, which limit the practical feasibility of deep, many-qubit circuits. To address these constraints, quantum circuit cutting has emerged…

Quantum Physics · Physics 2026-04-28 Yuval Idan , Eitan Zahavi , Elad Mentovich , Eliahu Cohen , Shmuel Zaks

Quantum computing has tremendous potential to overcome some of the fundamental limitations present in classical information processing. Yet, today's technological limitations in the quality and scaling prevent exploiting its full potential.…

Quantum Physics · Physics 2024-08-23 Leonid Abdurakhimov , Janos Adam , Hasnain Ahmad , Olli Ahonen , Manuel Algaba , Guillermo Alonso , Ville Bergholm , Rohit Beriwal , Matthias Beuerle , Clinton Bockstiegel , Alessio Calzona , Chun Fai Chan , Daniele Cucurachi , Saga Dahl , Rakhim Davletkaliyev , Olexiy Fedorets , Alejandro Gomez Frieiro , Zheming Gao , Johan Guldmyr , Andrew Guthrie , Juha Hassel , Hermanni Heimonen , Johannes Heinsoo , Tuukka Hiltunen , Keiran Holland , Juho Hotari , Hao Hsu , Antti Huhtala , Eric Hyyppä , Aleksi Hämäläinen , Joni Ikonen , Sinan Inel , David Janzso , Teemu Jaakkola , Mate Jenei , Shan Jolin , Kristinn Juliusson , Jaakko Jussila , Shabeeb Khalid , Seung-Goo Kim , Miikka Koistinen , Roope Kokkoniemi , Anton Komlev , Caspar Ockeloen-Korppi , Otto Koskinen , Janne Kotilahti , Toivo Kuisma , Vladimir Kukushkin , Kari Kumpulainen , Ilari Kuronen , Joonas Kylmälä , Niclas Lamponen , Julia Lamprich , Alessandro Landra , Martin Leib , Tianyi Li , Per Liebermann , Aleksi Lintunen , Wei Liu , Jürgen Luus , Fabian Marxer , Arianne Meijer-van de Griend , Kunal Mitra , Jalil Khatibi Moqadam , Jakub Mrożek , Henrikki Mäkynen , Janne Mäntylä , Tiina Naaranoja , Francesco Nappi , Janne Niemi , Lucas Ortega , Mario Palma , Miha Papič , Matti Partanen , Jari Penttilä , Alexander Plyushch , Wei Qiu , Aniket Rath , Kari Repo , Tomi Riipinen , Jussi Ritvas , Pedro Figueroa Romero , Jarkko Ruoho , Jukka Räbinä , Sampo Saarinen , Indrajeet Sagar , Hayk Sargsyan , Matthew Sarsby , Niko Savola , Mykhailo Savytskyi , Ville Selinmaa , Pavel Smirnov , Marco Marín Suárez , Linus Sundström , Sandra Słupińska , Eelis Takala , Ivan Takmakov , Brian Tarasinski , Manish Thapa , Jukka Tiainen , Francesca Tosto , Jani Tuorila , Carlos Valenzuela , David Vasey , Edwin Vehmaanperä , Antti Vepsäläinen , Aapo Vienamo , Panu Vesanen , Alpo Välimaa , Jaap Wesdorp , Nicola Wurz , Elisabeth Wybo , Lily Yang , Ali Yurtalan

Solving electronic structure problems represents a promising field of application for quantum computers. Currently, much effort has been spent in devising and optimizing quantum algorithms for quantum chemistry problems featuring up to…

Quantum computing is a rapidly expanding field with applications ranging from optimization all the way to complex machine learning tasks. Quantum memories, while lacking in practical quantum computers, have the potential to bring quantum…

Quantum machine learning (QML) is a fast-growing discipline within quantum computing. One popular QML algorithm, quantum kernel estimation, uses quantum circuits to estimate a similarity measure (kernel) between two classical feature…

Quantum Physics · Physics 2023-07-12 Travis L. Scholten , Derrick Perry , Joseph Washington , Jennifer R. Glick , Thomas Ward

In the field of quantum machine learning (QML), parametrized quantum circuits (PQCs) -- constructed using a combination of fixed and tunable quantum gates -- provide a promising hybrid framework for tackling complex machine learning…

Quantum Physics · Physics 2025-09-19 Grier M. Jones , Viki Kumar Prasad , Ulrich Fekl , Hans-Arno Jacobsen

Experiments with superconducting quantum processors have successfully demonstrated the basic functions needed for quantum computation and evidence of utility, albeit without a sizable array of error-corrected qubits. The realization of the…

Quantum computing (QC) in the current NISQ era is still limited in size and precision. Hybrid applications mitigating those shortcomings are prevalent to gain early insight and advantages. Hybrid quantum machine learning (QML) comprises…