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seminar

Seattle, WA — Pacific Time

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MSE Seminar: Alex Opremcak

Title: Correlated Error Bursts in a Gap-Engineered Superconducting Qubit Array Abstract: One of the roadblocks towards the implementation of a fault-tolerant superconducting quantum processor is impacts of ionizing radiation with the qubit substrate. Such impacts temporarily elevate the density of quasiparticles (QPs) across the device, leading to correlated qubit error bursts. The most damaging errors—T1 errors—stem from QP tunneling across the qubit Josephson junctions (JJs). Recently, we demonstrated [Phys. Rev. Lett. 133, 240601 (2024)] that this type of error can be strongly suppressed by engineering the profile of the superconducting gap at the JJs in a way that prevents QP tunneling. In this work, we identify a new type of impact-induced correlated error that persists in the presence of gap engineering. We observe that impacts shift the frequencies of the affected qubits, and thus lead to correlated phase errors. The frequency shifts are systematically negative, reach values up to 3 MHz, and last for… Event interval: Single day event. Campus room: IEB G106. Accessibility Contact: Matthew Yankowitz, myank@uw.edu. Event Types: Lectures/Seminars. Monday, November 3, 2025, 2:30 PM – 3:20 PM. https://maps.app.goo.gl/uNfzCjvWuGcLMbSd9.

MSE Seminar: Aniruddh Vashisth

Title: Reversing Damage in Vitrimer Composites using Radio Frequency Heating: Insights from Simulations and Experiments, Abstract: Fiber-reinforced plastics (FRP) with superior strength- and stiffness-to-weight ratios are replacing their metal counterparts in a wide variety of structural applications. FRPs are projected to represent a $31 Billion market by 2024, driven by the soaring demand in the automotive, aerospace, sports equipment and interestingly in circuit boards. However, the principal limitations of FRP are their brittle failure, insufficient fatigue life and poor recyclability, which results in deficiencies in terms of performance, cost, safety, and reliability of structural components. Consequently there is great interest in developing new concepts for fatigue-resistant, tough and re-processable/sustainable FRP. To address the issue of recyclability, reprocessability and reusability of polymeric systems, the molecular network structure of polymers must be considered. We show that a new class of… Event interval: Single day event. Campus room: IEB G106. Accessibility Contact: Matthew Yankowitz, myank@uw.edu. Event Types: Lectures/Seminars. Monday, November 10, 2025, 2:30 PM – 3:20 PM. https://maps.app.goo.gl/uNfzCjvWuGcLMbSd9.

MSE Seminar: Jenna Pope

Title: BUQ4MLIP: Uncertainty Quantification for Machine Learning Interatomic Potentials Abstract: Machine learning interatomic potentials (MLIPs) are transforming atomistic simulations by providing ab initio-level accuracy at orders-of-magnitude faster speeds. Universal MLIPs, also called foundation models, are trained across large, chemically diverse datasets with the goal of broad transferability to new atomic environments. However, the blackbox nature of MLIPs obscures the relationship between atomic environments and predicted outputs, making it difficult to discern when the model is operating within its domain of validity and when its outputs may be unreliable. Uncertainty quantification (UQ) provides interpretable metrics that indicate the confidence or reliability of MLIP predictions. This talk will discuss UQ approaches using quantile regression to produce confidence intervals around the predicted output that can be used to assess the trustworthiness of MLIP-driven simulations. Bio: Dr. Jenna Pope… Event interval: Single day event. Campus room: IEB G106. Accessibility Contact: Matthew Yankowitz, myank@uw.edu. Event Types: Lectures/Seminars. Monday, November 17, 2025, 2:30 PM – 3:20 PM. https://maps.app.goo.gl/uNfzCjvWuGcLMbSd9.

MSE Seminar: Peter Sushko

Title: TBD Abstract: TBD Bio: TBD. Event interval: Single day event. Campus room: IEB G106. Accessibility Contact: Matthew Yankowitz, myank@uw.edu. Event Types: Lectures/Seminars. Monday, November 24, 2025, 2:30 PM – 3:20 PM. https://maps.app.goo.gl/uNfzCjvWuGcLMbSd9.

MSE Seminar: Johannas Pollanen

Title: TBD Abstract: TBD Bio: TBD. Event interval: Single day event. Campus location: Bagley Hall (BAG). Campus room: 154. Accessibility Contact: Matthew Yankowitz, myank@uw.edu. Event Types: Lectures/Seminars. Monday, January 5, 2026, 2:30 PM – 3:30 PM.