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SUMMARY:Jorquera\, Z. (CSE) - Quantum Entanglement Bounds and the Approximation Algorithms That Use Them
DESCRIPTION:One of the central challenges in quantum computing is finding or approximating the ground-state energy of a local Hamiltonian\, a quantum analogue of classical constraint satisfaction problems (CSPs). Among these\, the Quantum Max-Cut problem serves as a canonical example\, paralleling the classical Max-Cut problem. Despite its foundational importance in both theoretical computer science and condensed matter physics\, our understanding of approximation algorithms for Quantum Max-Cut and related local Hamiltonian problems remains limited\, primarily due to the difficulty of representing and optimizing over entangled quantum states. \nIn this advancement talk\, we introduce the quantum information background needed to contextualize the results and the significance of the proposed future work by drawing an analogy to classical optimization. We then investigate approximation algorithms for 2-local Hamiltonians beyond qubit systems\, focusing on higher-dimensional qudit analogues\, such as Quantum Max-d-Cut and a new problem we introduce: the Maximal Entanglement problem. We establish new entanglement upper bounds for these problems based on the star bound\, a key tool for analyzing entanglement monogamy in Hamiltonian optimization. For the Maximal Entanglement problem\, we show that these bounds can be efficiently certified via semidefinite programs (SDPs) and that they directly admit a (1/d + O(1/D))-approximation algorithm (where D is the degree of the interaction graph)\, which beats random assignment. For Quantum Max-d-Cut\, the star bound gives a more complicated notion of entanglement\, for which we show that the basic SDP can verify this bound for all reduced marginals on up to five vertices when d=3\, but likely fails for larger subgraphs. We further propose that b-matchings\, with b = d-1\, capture the appropriate notion of entanglement for these higher-dimensional Quantum Max-d-Cut systems\, analogous to matchings in the qubit/Quantum Max-Cut case. Leveraging this insight\, we design a novel 2-matching-based algorithm that outperforms existing approaches for Quantum Max-3-Cut\, giving an approximation ratio of 0.555. \nThe present work advances the theoretical framework for understanding approximations in qudit Hamiltonians and highlights open directions for certifying quantum upper bounds as well as finding lower bounds via approximation algorithms. \n  \nEvent Host: Zack Jorquera\, Ph.D. Student\, Computer Science and Engineering  \nAdvisor: Alexandra Kolla  \nZoom- https://ucsc.zoom.us/j/98034235739?pwd=k260nd9labWT8xoQ9Cv3m2TATGw7VB.1
URL:https://events.ucsc.edu/event/jorquera-z-cse-quantum-entanglement-bounds-and-the-approximation-algorithms-that-use-them/
LOCATION:Engineering 2\, Engineering 2 1156 High Street\, Santa Cruz\, CA\, 95064
CATEGORIES:Ph.D. Presentations
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DTSTART;TZID=America/Los_Angeles:20251120T120000
DTEND;TZID=America/Los_Angeles:20251120T130000
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SUMMARY:Chinese Names Pronunciation Workshop
DESCRIPTION:Learn the fundamentals of reading Chinese pinyin names and practice with native speaking staff members and students from Global Engagement. Hosted by Chunling Hu (International Student Advisor) and Global Leaders. \nRegister here for the Chinese Names Pronunciation Workshop \nDate: Thursday\, November 20 \nTime: 12:00 – 13:00 \nLocation: Zoom \nThis event is part of UCSC’s International Education Week. If you have any questions\, please contact us at iprogramming@ucsc.edu.
URL:https://events.ucsc.edu/event/chinese-names-pronunciation-workshop-5731/
LOCATION:CA
CATEGORIES:Lectures & Presentations
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DTSTART;TZID=America/Los_Angeles:20251120T180000
DTEND;TZID=America/Los_Angeles:20251120T190000
DTSTAMP:20260520T145450
CREATED:20251114T201146Z
LAST-MODIFIED:20251114T201347Z
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SUMMARY:Job search strategies in a competitive market
DESCRIPTION:Join Dean PK Agarwal for this free\, in-person and online event as he provides actionable tips on navigating today’s dynamic job market — from leveraging LinkedIn and digital portfolios to networking effectively and positioning yourself as a must-hire candidate. Ideal for career changers\, recent grads\, and mid-career professionals. \nIn this session you’ll: \n\nLearn proven strategies for standing out to recruiters and hiring managers\nBuild a compelling digital presence\, including LinkedIn and online portfolios\nApply smart networking to open doors and build lasting connections\n\nThis session is part of Pathways to Professional Success\, a new conversation series hosted by Dean P.K. Agarwal. \n\n\nClaim your seat!
URL:https://events.ucsc.edu/event/job-search-strategies-in-a-competitive-market/
LOCATION:Silicon Valley Campus\, 3175 Bowers Avenue\, Santa Clara\, CA\, 95054\, United States
CATEGORIES:Lectures & Presentations,Meetings & Conferences,Training
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DTSTART;TZID=America/Los_Angeles:20251120T180000
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SUMMARY:Ellen Bass: Morton Marcus Poetry Reading
DESCRIPTION:Join us for the 15th annual Morton Marcus Poetry Reading\, featuring honored guest Ellen Bass. Poet Gary Young will host the program\, and the evening will include an announcement of the winner of the Morton Marcus Poetry Contest (recipient receives a $1\,000 prize). \nEllen Bass’s most recent collection\, Indigo\, was published by Copper Canyon Press in 2020. Among her other books are Like a Beggar\, The Human Line\, and Mules of Love. Her poems appear frequently in The New Yorker\, American Poetry Review\, and many other journals. Among her awards are Fellowships from the Guggenheim Foundation\, The NEA\, and The California Arts Council\, The Lambda Literary Award\, and four Pushcart Prizes. She co-edited with Florence Howe the first major anthology of women’s poetry\, No More Masks!\, and her nonfiction books include the groundbreaking The Courage to Heal: A Guide for Women Survivors of Child Sexual Abuse and Free Your Mind: The Book for Gay\, Lesbian and Bisexual Youth. A chancellor emerita of the Academy of American Poets\, Bass founded poetry workshops at Salinas Valley State Prison and the Santa Cruz\, California jails\, and teaches in the MFA writing program at Pacific University \nGary Young is the author of several collections of poetry. His most recent books are That’s What I Thought\, winner of the Lexi Rudnitsky Editor’s Choice Award from Persea Books\, and Precious Mirror\, translations from the Japanese. His other books include Even So: New and Selected Poems; Pleasure; No Other Life\, winner of the William Carlos Williams Award; Braver Deeds\, winner of the Peregrine Smith Poetry Prize; Days; The Dream of a Moral Life\, which won the James D. Phelan Award; and Hands. He has received a Pushcart Prize\, and grants from the National Endowment for the Humanities\, the National Endowment for the Arts\, the California Arts Council\, and the Vogelstein Foundation\, among others. In 2009 he received the Shelley Memorial Award from the Poetry Society of America. Young was the first Poet Laureate of Santa Cruz County\, and in 2012 he was named Santa Cruz County Artist of the Year. Since 1975 he has designed\, illustrated\, and printed limited edition letterpress books and broadsides at his Greenhouse Review Press. His fine print work is represented in numerous collections including the Museum of Modern Art\, the Victoria and Albert Museum\, The Getty Museum\, and special collection libraries throughout the U.S. and Europe. He teaches creative writing and directs the Cowell Press at UC Santa Cruz. \nThis event is a part of the Fall UCSC Living Writers course\, which features poets\, novelists\, academics\, curators\, and artists in conversation with one another\, in person\, across genre and media. \nPurchase both poets’ works at: www.bookshopsantacruz.com \n\nParking Information \nThe Merrill Cultural Center is located in Merrill College\, in the northeast corner of the campus core. Those walking or arriving by Metro bus or campus shuttle can take the steep path heading northeast from the Crown/Merrill bus stop. \nFor those driving from the Main Entrance\, stay on Coolidge Drive. Shortly after Coolidge turns left and becomes McLaughlin Drive\, turn right at the sign for Merrill College. At the top of the hill\, veer right. There are ParkMobile parking spaces along the left side of the lot\, and parking for “A\,” “B\,” and “C” permits along the right. There are two accessible parking spaces if you turn left at the top of the hill and two more if you turn right. Parking attendants will be on site to sell parking permits to event attendees. \n\nThe Morton Marcus Poetry Reading honors poet\, teacher\, and film critic Morton Marcus (1936–2009). Marcus was the 1999 Santa Cruz County Artist of the Year and a recipient of the 2007 Gail Rich Award. Among his published works are eleven volumes of poetry\, including The Santa Cruz Mountain Poems\, Pages from a Scrapbook of Immigrants\, Moments Without Names\, Shouting Down the Silence\, Pursuing the Dream Bone and The Dark Figure In The Doorway; a novel\, The Brezhnev Memo; and a literary memoir\, Striking Through the Masks. He taught English and Film at Cabrillo College for thirty years\, was the co-host of the radio program\, The Poetry Show\, and was the co-host of the television film review show\, Cinema Scene. Learn more at: www.mortonmarcus.com \nThe Morton Marcus Poetry Archive can be found at UCSC Special Collections. Mort’s personal papers\, manuscripts\, and recordings reflect his legacy as a poet and educator\, and his collection of poetry books\, broadsides\, literary magazines and correspondence with other poets and writers illuminate his deep involvement in\, and passion for\, the literary art of poetry. \nOrganizing Committee: Danusha Laméris\, Donna Mekis\, Mark Ong\, Maggie Paul\, Farnaz Fatemi\, David Sullivan\, Irena Polić\, Teresa Mora\, and Gary Young. \nMorton Marcus Memorial Poetry Contest: Every year\, the annual reading coincides with the The Morton Marcus Memorial Poetry Prize\, a national poetry contest which honors Morton Marcus\, “whose life and work inspired the writing of many students\, friends\, and emerging poets.” The contest is hosted by The Hive Poetry Collective. The Hive is a group of Santa Cruz poets creating a weekly radio show and live poetry events featuring a diverse roster of poets and seeks to bring a diverse community together in appreciation of all kinds of poetry by all kinds of people. This year’s contest will be judged by Nancy Miller Gomez. For more information visit: https://hivepoetry.org/morton-marcus-prize/ \nSupport Poetry in Santa Cruz: The Annual Morton Marcus Poetry Reading is made possible due to campus and community co-sponsorships and generous contributions from members of our community\, like you. To ensure we can continue to offer this poetry reading free and open to the public in honor and memory of Morton Marcus\, and to have our lives deeply enriched by exceptional poetry\, please consider making a gift to The Morton Marcus Poetry Reading Fund: thi.ucsc.edu/projects/morton-marcus-poetry-reading. \nThis community event is presented by the The Humanities Institute and co-sponsored by: \nBookshop Santa Cruz\nCabrillo College English Department\nCowell College\nDonna F. Mekis\nThe Hive Poetry Collective\nLiving Writers Series\nOw Family Properties\nMerrill College\nPoetry Santa Cruz\nPorter Hitchcock Modern Poetry Fund\nPorter College\nSanta Cruz Writes\nSide By Side Press\nSpecial Collections & Archives \nIf you have disability-related needs\, please contact us at thi@ucsc.edu or call 831-459-1274 by October 31. \nPhoto by: Irene Young
URL:https://events.ucsc.edu/event/ellen-bass-morton-marcus-poetry-reading/
LOCATION:Merrill Cultural Center\, 200 McLaughlin Dr\, Santa Cruz\, CA\, 95064
CATEGORIES:Lectures & Presentations
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