Events

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 1,
    "next": null,
    "previous": null,
    "results": [
        {
            "id": 71582,
            "title": "QSE Quantum Seminar: Benoit Vermersch and Robin Blume-Kohout",
            "slug": "qse-quantum-seminar-benoit-vermersch-and-robin-blu",
            "event_url": "https://memento.epfl.ch/event/qse-quantum-seminar-benoit-vermersch-and-robin-blu",
            "visual_url": "https://memento.epfl.ch/image/32917/200x112.jpg",
            "visual_large_url": "https://memento.epfl.ch/image/32917/720x405.jpg",
            "visual_maxsize_url": "https://memento.epfl.ch/image/32917/max-size.jpg",
            "lang": "en",
            "start_date": "2026-04-24",
            "end_date": "2026-04-24",
            "start_time": "11:30:00",
            "end_time": "14:00:00",
            "description": "<p>Please join us<strong> </strong>for the<strong> QSE Center Quantum Seminar</strong> with <strong>Robin Blume-Kohout </strong>from <strong>Sandia National Labs</strong> who will give the talk \"<strong>Assessing performance of logical operations with detector error models\" </strong>and<strong> Benoit Vermersch </strong>from <strong>Quobly and UGA</strong><em> </em>who will give the talk <strong>\"Randomized measurements for large-scale quantum experiments</strong><strong>\" </strong>on Friday April 24 from 11:30pm to 2:00pm<br>\r\nLocation: GR B3 30<br>\r\n<br>\r\nThe first talk will start at 11:30pm. <strong>Pizzas will be available</strong> at 12:20pm, in between talks. All PhDs, postdocs, students, group leaders, and PIs are welcome to join us.<br>\r\n<br>\r\nABSTRACT:<br>\r\n1. \"<strong>Assessing performance of logical operations with detector error models\" - Robin Blume-Kohout </strong><br>\r\nQuantum computing is rapidly transitioning from the “NISQ” paradigm in which circuits and gates are executed directly on physical qubits to a fault tolerant “FTQC” paradigm in which circuits and gates are executed on encoded, error-corrected logical qubits.  We want to model errors in gates.  Logic gates on physical qubits are modeled by process matrices, derived from theory or estimated from tomography.  But describing logical gates on logical qubits demands a richer model — specifically, detector error models — that can describe QEC syndrome data.  I’ll introduce detector error models and summarize three recent papers in which we show how to estimate detector error models from data [<a data-auth=\"NotApplicable\" data-linkindex=\"0\" href=\"https://arxiv.org/abs/2504.14643\" rel=\"noopener noreferrer\" target=\"_blank\" title=\"https://arxiv.org/abs/2504.14643\">https://arxiv.org/abs/2504.14643</a>], how to simulate arbitrary small Markovian errors in Clifford circuits [<a data-auth=\"NotApplicable\" data-linkindex=\"1\" href=\"https://arxiv.org/abs/2504.15128\" rel=\"noopener noreferrer\" target=\"_blank\" title=\"https://arxiv.org/abs/2504.15128\">https://arxiv.org/abs/2504.15128</a>], and how to generate detector error models from arbitrary circuit-level Markovian errors [<a data-auth=\"NotApplicable\" data-linkindex=\"2\" href=\"https://arxiv.org/abs/2603.18457\" rel=\"noopener noreferrer\" target=\"_blank\" title=\"https://arxiv.org/abs/2603.18457\">https://arxiv.org/abs/2603.18457</a>].<br>\r\n<br>\r\n2. \"<strong>Randomized measurements for large-scale quantum experiments\" - </strong> <strong>Benoit Vermersch</strong><br>\r\nThe randomized measurements toolbox is now routinely used in quantum experiments to estimate fundamental quantum properties, such as entanglement [1].<br>\r\nWhile experimentalists appreciate the simplicity and robustness aspects of such measurement protocols, a challenge for theorists is to design strategies for overcoming statistical errors using \"cheap\" polynomial resources in system size.<br>\r\nIn this context, I will present recent upgrades to the randomized measurements toolbox that address this challenge for large-scale quantum states that are relevant to the field of quantum simulation. In particular, I will discuss efficient protocols for measuring entanglement [2] and performing state tomography [3]. <br>\r\n <br>\r\n[1] A. Elben, S. T. Flammia, H.-Y. Huang, R. Kueng, J. Preskill, B. Vermersch, and P. Zoller, The Randomized Measurement Toolbox, Nat Rev Phys 5, 9 (2022).<br>\r\n[2] B. Vermersch, M. Ljubotina, J. I. Cirac, P. Zoller, M. Serbyn, and L. Piroli, Many-Body Entropies and Entanglement from Polynomially Many Local Measurements, Phys. Rev. X 14, 031035 (2024).<br>\r\n[3] M. Votto, M. Ljubotina, C. Lancien, J. Ignacio Cirac, P. Zoller, M. Serbyn, L. Piroli, B. Vermersch,  arXiv:2507.12550<br>\r\n<br>\r\nBIOS:<br>\r\n<strong>Robin Blume-Kohout</strong> was born on a kitchen table in the Alaska Bush almost (but not quite) 50 years ago.  Unfortunately, things went downhill thereafter.  He is now the founder and codirector of Sandia’s Quantum Performance Lab (QPL), where he and his fellow malcontents dream up new ways to assess and enhance the performance of quantum computers and their components.<br>\r\n<strong>Benoit Vermersch</strong> is an associate professor at the University of Grenoble Alpes, member of the LPMMC currently on leave in the quantum startup Quobly Research interests include implementations of quantum processing units with cold atoms, trapped ions, superconducting qubits; measurement protocols for entanglement-related quantities, out-of-time ordered correlators, topological invariants; many-body entanglement theory; quantum networks: Light-matter interfaces, quantum state transfer protocols, waveguide quantum electrodynamics; and tensor-network numerical methods: Matrix-Product-States and DMRG,TEBD related algorithms.</p>",
            "image_description": "",
            "creation_date": "2026-04-13T20:45:23",
            "last_modification_date": "2026-04-13T20:57:05",
            "link_label": "",
            "link_url": "",
            "canceled": "False",
            "cancel_reason": "",
            "place_and_room": "GR B3 30",
            "url_place_and_room": "https://plan.epfl.ch/?room==GR%20B3%2030",
            "url_online_room": "",
            "spoken_languages": [
                "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api"
            ],
            "speaker": "<strong>Robin Blume-Kohout </strong> <strong> Benoit Vermersch </strong>  ",
            "organizer": "QSE Center",
            "contact": "[email protected]",
            "is_internal": "False",
            "theme": "",
            "vulgarization": {
                "id": 1,
                "fr_label": "Tout public",
                "en_label": "General public"
            },
            "registration": {
                "id": 3,
                "fr_label": "Entrée libre",
                "en_label": "Free"
            },
            "keywords": "QSE Quantum Seminar",
            "file": null,
            "icalendar_url": "https://memento.epfl.ch/event/export/120361/",
            "category": {
                "id": 1,
                "code": "CONF",
                "fr_label": "Conférences - Séminaires",
                "en_label": "Conferences - Seminars",
                "activated": true
            },
            "academic_calendar_category": null,
            "domains": [],
            "mementos": [
                "https://memento.epfl.ch/api/v1/mementos/6/?format=api",
                "https://memento.epfl.ch/api/v1/mementos/27/?format=api",
                "https://memento.epfl.ch/api/v1/mementos/191/?format=api",
                "https://memento.epfl.ch/api/v1/mementos/389/?format=api"
            ]
        }
    ]
}