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  1. Book ; Online: Approximately Equivariant Quantum Neural Network for $p4m$ Group Symmetries in Images

    Chang, Su Yeon / Grossi, Michele / Saux, Bertrand Le / Vallecorsa, Sofia

    2023  

    Abstract: Quantum Neural Networks (QNNs) are suggested as one of the quantum algorithms which can be efficiently simulated with a low depth on near-term quantum hardware in the presence of noises. However, their performance highly relies on choosing the most ... ...

    Abstract Quantum Neural Networks (QNNs) are suggested as one of the quantum algorithms which can be efficiently simulated with a low depth on near-term quantum hardware in the presence of noises. However, their performance highly relies on choosing the most suitable architecture of Variational Quantum Algorithms (VQAs), and the problem-agnostic models often suffer issues regarding trainability and generalization power. As a solution, the most recent works explore Geometric Quantum Machine Learning (GQML) using QNNs equivariant with respect to the underlying symmetry of the dataset. GQML adds an inductive bias to the model by incorporating the prior knowledge on the given dataset and leads to enhancing the optimization performance while constraining the search space. This work proposes equivariant Quantum Convolutional Neural Networks (EquivQCNNs) for image classification under planar $p4m$ symmetry, including reflectional and $90^\circ$ rotational symmetry. We present the results tested in different use cases, such as phase detection of the 2D Ising model and classification of the extended MNIST dataset, and compare them with those obtained with the non-equivariant model, proving that the equivariance fosters better generalization of the model.

    Comment: 7 pages, 6 figures, To be published as part of the IEEE Quantum Week 2023 Proceedings
    Keywords Quantum Physics ; Computer Science - Artificial Intelligence ; Computer Science - Machine Learning
    Subject code 006
    Publishing date 2023-10-03
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Dynamical Localization Simulated on Actual Quantum Hardware.

    Pizzamiglio, Andrea / Chang, Su Yeon / Bondani, Maria / Montangero, Simone / Gerace, Dario / Benenti, Giuliano

    Entropy (Basel, Switzerland)

    2021  Volume 23, Issue 6

    Abstract: Quantum computers are invaluable tools to explore the properties of complex quantum systems. We show that dynamical localization of the quantum sawtooth map, a highly sensitive quantum coherent phenomenon, can be simulated on actual, small-scale quantum ... ...

    Abstract Quantum computers are invaluable tools to explore the properties of complex quantum systems. We show that dynamical localization of the quantum sawtooth map, a highly sensitive quantum coherent phenomenon, can be simulated on actual, small-scale quantum processors. Our results demonstrate that quantum computing of dynamical localization may become a convenient tool for evaluating advances in quantum hardware performances.
    Language English
    Publishing date 2021-05-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2014734-X
    ISSN 1099-4300 ; 1099-4300
    ISSN (online) 1099-4300
    ISSN 1099-4300
    DOI 10.3390/e23060654
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Book ; Online: Running the Dual-PQC GAN on noisy simulators and real quantum hardware

    Chang, Su Yeon / Agnew, Edwin / Combarro, Elías F. / Grossi, Michele / Herbert, Steven / Vallecorsa, Sofia

    2022  

    Abstract: In an earlier work, we introduced dual-Parameterized Quantum Circuit (PQC) Generative Adversarial Networks (GAN), an advanced prototype of a quantum GAN. We applied the model on a realistic High-Energy Physics (HEP) use case: the exact theoretical ... ...

    Abstract In an earlier work, we introduced dual-Parameterized Quantum Circuit (PQC) Generative Adversarial Networks (GAN), an advanced prototype of a quantum GAN. We applied the model on a realistic High-Energy Physics (HEP) use case: the exact theoretical simulation of a calorimeter response with a reduced problem size. This paper explores the dual- PQC GAN for a more practical usage by testing its performance in the presence of different types of quantum noise, which are the major obstacles to overcome for successful deployment using near-term quantum devices. The results propose the possibility of running the model on current real hardware, but improvements are still required in some areas.

    Comment: 6 pages, 5 figures, Proceedings of the 20th International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT 2021)
    Keywords Quantum Physics ; Computer Science - Machine Learning
    Publishing date 2022-05-30
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Book ; Online: Dual-Parameterized Quantum Circuit GAN Model in High Energy Physics

    Chang, Su Yeon / Herbert, Steven / Vallecorsa, Sofia / Combarro, Elías F. / Duncan, Ross

    2021  

    Abstract: Generative models, and Generative Adversarial Networks (GAN) in particular, are being studied as possible alternatives to Monte Carlo simulations. It has been proposed that, in certain circumstances, simulation using GANs can be sped-up by using quantum ... ...

    Abstract Generative models, and Generative Adversarial Networks (GAN) in particular, are being studied as possible alternatives to Monte Carlo simulations. It has been proposed that, in certain circumstances, simulation using GANs can be sped-up by using quantum GANs (qGANs). We present a new design of qGAN, the dual-Parameterized Quantum Circuit(PQC) GAN, which consists of a classical discriminator and two quantum generators which take the form of PQCs. The first PQC learns a probability distribution over N-pixel images, while the second generates normalized pixel intensities of an individual image for each PQC input. With a view to HEP applications, we evaluated the dual-PQC architecture on the task of imitating calorimeter outputs, translated into pixelated images. The results demonstrate that the model can reproduce a fixed number of images with a reduced size as well as their probability distribution and we anticipate it should allow us to scale up to real calorimeter outputs.
    Keywords Quantum Physics ; Computer Science - Machine Learning
    Publishing date 2021-03-29
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Bell Diagonal and Werner State Generation: Entanglement, Non-Locality, Steering and Discord on the IBM Quantum Computer.

    Riedel Gårding, Elias / Schwaller, Nicolas / Chan, Chun Lam / Chang, Su Yeon / Bosch, Samuel / Gessler, Frederic / Laborde, Willy Robert / Hernandez, Javier Naya / Si, Xinyu / Dupertuis, Marc-André / Macris, Nicolas

    Entropy (Basel, Switzerland)

    2021  Volume 23, Issue 7

    Abstract: We propose the first correct special-purpose quantum circuits for preparation of Bell diagonal states (BDS), and implement them on the IBM Quantum computer, characterizing and testing complex aspects of their quantum correlations in the full parameter ... ...

    Abstract We propose the first correct special-purpose quantum circuits for preparation of Bell diagonal states (BDS), and implement them on the IBM Quantum computer, characterizing and testing complex aspects of their quantum correlations in the full parameter space. Among the circuits proposed, one involves only two quantum bits but requires adapted quantum tomography routines handling classical bits in parallel. The entire class of Bell diagonal states is generated, and several characteristic indicators, namely entanglement of formation and concurrence, CHSH non-locality, steering and discord, are experimentally evaluated over the full parameter space and compared with theory. As a by-product of this work, we also find a remarkable general inequality between "quantum discord" and "asymmetric relative entropy of discord": the former never exceeds the latter. We also prove that for all BDS the two coincide.
    Language English
    Publishing date 2021-06-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2014734-X
    ISSN 1099-4300 ; 1099-4300
    ISSN (online) 1099-4300
    ISSN 1099-4300
    DOI 10.3390/e23070797
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Book ; Online: Bell Diagonal and Werner state generation

    Gårding, Elias Riedel / Schwaller, Nicolas / Chang, Su Yeon / Bosch, Samuel / Laborde, Willy Robert / Hernandez, Javier Naya / Chan, Chun Lam / Gessler, Frédéric / Si, Xinyu / Dupertuis, Marc-André / Macris, Nicolas

    entanglement, non-locality, steering and discord on the IBM quantum computer

    2019  

    Abstract: We propose the first correct special-purpose quantum circuits for preparation of Bell-diagonal states (BDS), and implement them on the IBM Quantum computer, characterizing and testing complex aspects of their quantum correlations in the full parameter ... ...

    Abstract We propose the first correct special-purpose quantum circuits for preparation of Bell-diagonal states (BDS), and implement them on the IBM Quantum computer, characterizing and testing complex aspects of their quantum correlations in the full parameter space. Among the circuits proposed, one involves only two quantum bits but requires adapted quantum tomography routines handling classical bits in parallel. The entire class of Bell-diagonal states is generated, and a number of characteristic indicators, namely entanglement of formation, CHSH non-locality, steering and discord, are experimentally evaluated over the full parameter space and compared with theory. As a by-product of this work we also find a remarkable general inequality between "quantum discord" and "asymmetric relative entropy of discord": the former never exceeds the latter. We also prove that for all BDS the two coincide.

    Comment: 18 pages, 21 figures
    Keywords Quantum Physics ; Computer Science - Information Theory
    Subject code 190
    Publishing date 2019-12-12
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Book ; Online: Quantum computing for data analysis in high energy physics

    Delgado, Andrea / Hamilton, Kathleen E. / Date, Prasanna / Vlimant, Jean-Roch / Magano, Duarte / Omar, Yasser / Bargassa, Pedrame / Francis, Anthony / Gianelle, Alessio / Sestini, Lorenzo / Lucchesi, Donatella / Zuliani, Davide / Nicotra, Davide / de Vries, Jacco / Dibenedetto, Dominica / Martinez, Miriam Lucio / Rodrigues, Eduardo / Sierra, Carlos Vazquez / Vallecorsa, Sofia /
    Thaler, Jesse / Bravo-Prieto, Carlos / Chang, su Yeon / Lazar, Jeffrey / Argüelles, Carlos A. / de Lejarza, Jorge J. Martinez

    2022  

    Abstract: Some of the biggest achievements of the modern era of particle physics, such as the discovery of the Higgs boson, have been made possible by the tremendous effort in building and operating large-scale experiments like the Large Hadron Collider or the ... ...

    Abstract Some of the biggest achievements of the modern era of particle physics, such as the discovery of the Higgs boson, have been made possible by the tremendous effort in building and operating large-scale experiments like the Large Hadron Collider or the Tevatron. In these facilities, the ultimate theory to describe matter at the most fundamental level is constantly probed and verified. These experiments often produce large amounts of data that require storing, processing, and analysis techniques that often push the limits of traditional information processing schemes. Thus, the High-Energy Physics (HEP) field has benefited from advancements in information processing and the development of algorithms and tools for large datasets. More recently, quantum computing applications have been investigated in an effort to understand how the community can benefit from the advantages of quantum information science. In this manuscript, we provide an overview of the state-of-the-art applications of quantum computing to data analysis in HEP, discuss the challenges and opportunities in integrating these novel analysis techniques into a day-to-day analysis workflow, and whether there is potential for a quantum advantage.

    Comment: 23 pages, initially submitted to Snowmass 2021
    Keywords Physics - Data Analysis ; Statistics and Probability ; High Energy Physics - Experiment ; Quantum Physics
    Subject code 306
    Publishing date 2022-03-15
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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