Stochastic quantum simulations for scattering experiments (5 April 2023)

<!DOCTYPE html> <html lang="en" prefix="og: http://ogp.me/ns#" data-canonical-locale="en-GB" data-static-site="false"> <head> <title>Stochastic quantum simulations for scattering experiments (5 April 2023) · Indico</title> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="csrf-token" id="csrf-token" content="00000000-0000-0000-0000-000000000000"> <link rel="shortcut icon" type="image/x-icon" href="/images/indico.ico"> <meta property="og:site_name" content="Indico"> <meta property="og:image" content="https://indico.cern.ch/images/indico_square.png"> <meta property="og:title" content="Stochastic quantum simulations for scattering experiments"> <meta property="og:type" content="event"> <meta property="og:description" content="NEW START TIME: 14:00Simulating many-body quantum systems is a promising task for quantum computers. However, early fault-tolerant devices are not expected to correct arbitrary amounts of error, making the quest for better algorithms an important task. We concentrate on random product formulas, such as qDrift, and unify this framework with importance sampling, allowing us to sample from arbitrary distributions while controlling both the bias, as well as the statistical fluctuations. We show..."> <script type="application/ld+json"> {"@context":"http://schema.org","@type":"Event","description":"NEW START TIME: 14:00Simulating many-body quantum systems is a promising task for quantum computers. However, early fault-tolerant devices are not expected to correct arbitrary amounts of error, making the quest for better algorithms an important task. \u00a0We concentrate on random product formulas, such as qDrift, and unify this framework with importance sampling, allowing us to sample from arbitrary distributions while controlling both the bias, as well as the statistical fluctuations. We show that the simulation cost can be reduced while achieving the same accuracy by considering the individual simulation cost during the sampling stage. We hope this work to pave the way for tailored qDrift implementations on specific problems and hardware.\u00a0As a bonus, we will also discuss how to compute linear response functions from nuclear scattering experiments using quantum hardware. We will cover circuit design optimization, different purification-based error mitigation protocols, and some hardware results.\u00a0About the speakerOriel Moira Kiss obtained his Master\u0027s degree in Physics from ETH Z\u00fcrich in 2021. He is now PhD student at University of Geneva, collaborating in the CERN QTI.\u00a0Collaborators: Michele Grossi (CERN) \u0026 Alessandro Roggero (INFN)","endDate":"2023-04-05T15:00:00+02:00","location":{"@type":"Place","address":"No address set","name":"CERN"},"name":"Stochastic quantum simulations for scattering experiments","performer":[{"@type":"Person","affiliation":{"@type":"Organization","name":"Universite de Geneve (CH)"},"name":"Oriel Orphee Moira Kiss"}],"startDate":"2023-04-05T14:00:00+02:00","url":"https://indico.cern.ch/event/1258356/"} </script> <script type="text/javascript" src="/assets/i18n/en_GB.js"></script> <script type="text/javascript" src="/assets/i18n/en_GB-react.js"></script> <script type="text/javascript" src="/assets/js-vars/global.js"></script> <script src="/dist/js/exports.6c5acaad.bundle.js"></script> <script src="/dist/js/common-runtime.22baa8e8.bundle.js"></script> <link rel="stylesheet" href="/dist/css/common.cf5e7fb9.css" /> <script src="/dist/js/common.db71da1f.bundle.js"></script> <link rel="stylesheet" href="/dist/css/react.c0eb75b7.css" /> <script src="/dist/js/react.9336d640.bundle.js"></script> <script src="/dist/js/semantic-ui.32899e53.bundle.js"></script> <link rel="stylesheet" href="/dist/css/semantic-ui.03304b73.css" /> <link rel="stylesheet" href="/dist/css/jquery.dee9784c.css" /> <script src="/dist/js/jquery.5d39d4ab.bundle.js"></script> <link rel="stylesheet" href="/dist/css/main.7d5ba6c5.css" /> <script src="/dist/js/main.50c66819.bundle.js"></script> <script src="/dist/js/module_core.5cfba714.bundle.js"></script> <script src="/dist/js/module_events.creation.f24ad529.bundle.js"></script> <script src="/dist/js/module_attachments.7bdcd885.bundle.js"></script> <script src="/dist/js/outdatedbrowser.474403ac.bundle.js"></script> <link rel="stylesheet" href="/dist/css/outdatedbrowser.17d2ff9d.css" /> <script src="/dist/js/module_events.display.e975ab70.bundle.js"></script> <script src="/dist/js/module_events.contributions.42999bfe.bundle.js"></script> <script src="/dist/js/module_events.header.601e600c.bundle.js"></script> <script src="/dist/js/module_events.search.49360505.bundle.js"></script> <script src="/dist/js/module_vc.0ba71b8f.bundle.js"></script> <script src="/dist/js/module_events.cloning.08447b32.bundle.js"></script> <script src="/dist/js/module_events.importing.e968f234.bundle.js"></script> <link rel="stylesheet" href="/dist/css/themes_event.bd7647b5.css" /> <script src="/static/plugins/ravem/dist/js/main.f3a86d52.bundle.js"></script> <link rel="stylesheet" href="/static/plugins/owncloud/dist/css/main.9fc172fa.css" /> <link rel="stylesheet" href="/static/plugins/vc_zoom/dist/css/main.d5d0f591.css" /> <script src="/static/plugins/conversion/dist/js/main.df56b341.bundle.js"></script> <link rel="stylesheet" href="/static/plugins/conversion/dist/css/main.68b4f5cc.css" /> <script src="/static/plugins/owncloud/dist/js/owncloud.ccba48fe.bundle.js"></script> <script src="/static/plugins/vc_zoom/dist/js/main.a1f20b82.bundle.js"></script> <script src="/static/plugins/ursh/dist/js/main.583c4589.bundle.js"></script> <script> moment.locale(["en-gb", 'en']); IndicoGlobalVars.isUserAuthenticated = false; </script> <script type="text/javascript" src="/assets/js-vars/user.js"></script> <script src="/dist/js/mathjax.285a258c.bundle.js"></script> <link rel="stylesheet" type="text/css" href="/static/custom/css/footer.css">  <script> (function() { 'use strict'; var url = '//piwik.web.cern.ch/'; var g = document.createElement('script'); var s = document.getElementsByTagName('script')[0]; g.type = 'text/javascript'; g.defer = true; g.async = true; g.src = url + 'piwik.js'; g.onload = init_tracking; s.parentNode.insertBefore(g, s); function init_tracking() { try { track_site(); track_event(); } catch(err) {} } function track_site() { var general_tracker = Piwik.getTracker(url + 'piwik.php', 59); general_tracker.enableLinkTracking(); general_tracker.trackPageView(); } function track_event() { var event_tracker = Piwik.getTracker(url + 'piwik.php', 56); event_tracker.enableLinkTracking(); event_tracker.setCustomVariable(1, 'Conference', '1258356', 'page'); event_tracker.trackPageView(); } })(); </script>  </head> <body data-user-id="null" data-debug="false" data-tinymce-content-css="["/dist/css/common.cf5e7fb9.css","/dist/css/react.c0eb75b7.css","/dist/css/semantic-ui.03304b73.css","/dist/css/jquery.dee9784c.css","/dist/css/main.7d5ba6c5.css"]" > <ind-bypass-block-links></ind-bypass-block-links> <div class="header"> <div class="announcement-bar weak-hidden warning" data-hash="2449555847"> <div class="flexrow f-self-stretch f-j-center f-a-center"> <i class="icon icon-warning"></i> <div> <p>Help us make Indico better by taking <a href="https://forms.gle/a8cYVhuBxMfFjSb98">this survey</a>! 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</div> </div> </div> <div id="pageSubHeader"></div> </div> <div id="flashed-messages" class="flashed-messages"></div> </div> <main class="main"><div> <div class="event-wrapper "> <div class="event-header event-header-lecture"> <div class="event-title"> <div> <a class="lecture-category" href="/category/14582/"> QTI Lectures </a> <h1>Stochastic quantum simulations for scattering experiments</h1> </div> <div class="event-actions"> <div class="event-manage-button"> <div class="toolbar right thin"> </div> </div> <div class="event-privacy-info-button"> </div> </div> </div> <h2> by <span class="author"> <span>Oriel Orphee Moira Kiss</span> <span class="affiliation"> <span class="text">(<span>Universite de Geneve (CH)</span>)</span></span></span> </h2> <div class="details"> <div class="event-date"> <i class="icon-calendar header-data" title="Start/end date/time of the event"></i> <span class="event-time-data"> <time itemprop="startDate" datetime="2023-04-05T12:00:00+00:00"> Wednesday 5 Apr 2023, 14:00 </time> → <time itemprop="endDate" datetime="2023-04-05T13:00:00+00:00"> 15:00 </time> <span class="timezone">Europe/Zurich</span> </span> </div> <div class="event-location"> <span class="location-info header-data" data-qtip-html=".qtip-hidden-content" data-qtip-opts='{"hide": {"fixed": true, "delay": 500}}'> <i class="icon-location "></i> <span class="text">Online (CERN)</span> </span> <span class="qtip-hidden-content"> <div class="location-info-tip"> <h3>Online</h3> <h4>CERN</h4> </div> </span> </div> </div> </div> <div class="event-sub-header"> <div class="event-details"> <div class="event-details-row"> <div class="event-details-label">Description</div> <div class="event-details-content"> <div itemprop="description" class="item-description event-description editor-output"> <h3><span style="background-color:hsl(60,75%,60%);">NEW START TIME: 14:00</span></h3><p style="font-family:Calibri,sans-serif;font-size:10pt;margin:0;"><span style="font-size:11pt;">Simulating many-body quantum systems is a promising task for quantum computers. However, early fault-tolerant devices are not expected to correct arbitrary amounts of error, making the quest for better algorithms an important task.  We concentrate on random product formulas, such as qDrift, and unify this framework with importance sampling, allowing us to sample from arbitrary distributions while controlling both the bias, as well as the statistical fluctuations. We show that the simulation cost can be reduced while achieving the same accuracy by considering the individual simulation cost during the sampling stage. We hope this work to pave the way for tailored qDrift implementations on specific problems and hardware.</span></p><p style="font-family:Calibri,sans-serif;font-size:10pt;margin:0;"><span style="font-size:11pt;"> </span></p><p style="font-family:Calibri,sans-serif;font-size:10pt;margin:0;"><span style="font-size:11pt;">As a bonus, we will also discuss how to compute linear response functions from nuclear scattering experiments using quantum hardware. We will cover circuit design optimization, different purification-based error mitigation protocols, and some hardware results.</span></p><p style="font-family:Calibri,sans-serif;font-size:10pt;margin:0;"> </p><p style="font-family:Calibri,sans-serif;font-size:10pt;margin:0;"><span style="font-size:11pt;"><strong>About the speaker</strong></span></p><p style="font-family:Calibri,sans-serif;font-size:10pt;margin:0;"><span style="color:hsl(210,75%,60%);"><span style="font-size:11pt;"><strong>Oriel Moira Kiss</strong></span></span><span style="font-size:11pt;"> obtained his Master's degree in Physics from ETH Zürich in 2021. He is now PhD student at University of Geneva, collaborating in the CERN QTI.</span></p><p style="font-family:Calibri,sans-serif;font-size:10pt;margin:0;"> </p><p style="font-family:Calibri,sans-serif;font-size:10pt;margin:0;"><span style="font-size:11pt;"><strong>Collaborators:</strong> Michele Grossi (CERN) & Alessandro Roggero (INFN)</span></p> </div> </div> </div> <div class="event-details-row"> <div class="event-details-label icon-attachment inline-attachments-icon"></div> <div class="event-details-content material-list"> <div class="attachments-display-container toolbar"> <div class="folder"> <a class="attachment icon-link i-button" data-previewable="false" data-attachment-id="4517990" href="https://arxiv.org/abs/2212.05952" target="_blank" rel="noopener noreferrer" title="Paper"><span class="title">Paper</span></a> </div> <div class="folder"> <a class="attachment icon-link i-button" data-previewable="false" data-attachment-id="4554587" href="https://cds.cern.ch/record/2856651" target="_blank" rel="noopener noreferrer" title="Recording"><span class="title">Recording</span></a> </div> <div class="folder"> <a class="attachment icon-file-pdf i-button" data-previewable="false" data-attachment-id="4540924" href="/event/1258356/attachments/2614404/4540924/Kiss_QDrift.pdf" target="_blank" rel="noopener noreferrer" title="Slides"><span class="title">Slides</span></a> </div> <div class="folder"> <a class="attachment icon-link i-button" data-previewable="false" data-attachment-id="4554168" href="https://lecturemedia.cern.ch/2023/1258356/" target="_blank" rel="noopener noreferrer" title="Video preview"><span class="title">Video preview</span></a> </div> </div> </div> </div> <div class="event-details-row"> <div class="event-details-label">Organised by</div> <div class="event-details-content"><p><i><a href="https://phonebook.cern.ch/phonebook/#personDetails/?id=412742">Miguel Angel Marquina</a> and <a href="https://phonebook.cern.ch/phonebook/#personDetails/?id=845487">Anastasiia Lazuka</a> - Communication, Education and Outreach/<a href="http://cern.ch/it-dep">IT Department</a></i></p><i> <hr> </i><p><i>If you are interested to contribute to the <a href="https://indico.cern.ch/category/14582/">QTI Lecture programme</a>, please contact us at <a href="mailto:quantum-edu@cern.ch">quantum-edu@cern.ch</a><br> <a href="https://quantum.cern/">CERN Quantum Technology Initiative</a> - Follow us on <a href="https://twitter.com/CERNquantum">Twitter</a> and <a href="https://www.linkedin.com/showcase/cern-quantum-technology-initiative-cern-qti/?viewAsMember=true">LinkedIn</a>.</i></p> <p>  </p><p><b>Please note:</b><br> Participants without CERN or Indico credentials should register below to receive the Zoom passcode by mail on the date of the event.</p></div> </div> <div class="event-details-row"> <div class="event-details-label align-top">Registration</div> <div class="event-details-content"> 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Stochastic quantum simulations for scattering experiments (5 April 2023) · Indico