{"id":9802,"date":"2025-12-31T09:44:46","date_gmt":"2025-12-31T14:44:46","guid":{"rendered":"https:\/\/labsites.rochester.edu\/nicholgroup\/?p=9802"},"modified":"2025-12-31T09:44:46","modified_gmt":"2025-12-31T14:44:46","slug":"new-preprint-8","status":"publish","type":"post","link":"https:\/\/labsites.rochester.edu\/nicholgroup\/new-preprint-8\/","title":{"rendered":"New preprint"},"content":{"rendered":"<p data-start=\"48\" data-end=\"357\"><strong data-start=\"48\" data-end=\"81\">Surface acoustic waves (SAWs)<\/strong> are promising building blocks for quantum interconnects and transducers, but integrating them with semiconductor quantum dots remains challenging. In a <a href=\"https:\/\/arxiv.org\/abs\/2512.19931\" target=\"_blank\" rel=\"noopener\">new paper<\/a>, we study flip-chip devices that combine GaAs\/AlGaAs or Si\/SiGe quantum dots with lithium niobate SAW resonators.<\/p>\n<p data-start=\"359\" data-end=\"783\" data-is-last-node=\"\" data-is-only-node=\"\">At low temperatures, both platforms ran into trouble due to <strong data-start=\"419\" data-end=\"462\">pyroelectric effects in lithium niobate<\/strong>. GaAs devices suffered unintentional carrier depletion, while Si\/SiGe devices experienced frequent electrostatic discharge. These results highlight an important materials challenge for hybrid SAW\u2013qubit systems and suggest that future progress will require <strong data-start=\"719\" data-end=\"782\">non-pyroelectric substrates or alternative coupling schemes<\/strong>.<\/p>\n<p data-start=\"359\" data-end=\"783\" data-is-last-node=\"\" data-is-only-node=\"\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-9812\" src=\"https:\/\/labsites.rochester.edu\/nicholgroup\/wp-content\/uploads\/2025\/12\/flip_chip-300x225.png\" alt=\"\" width=\"747\" height=\"560\" srcset=\"https:\/\/labsites.rochester.edu\/nicholgroup\/wp-content\/uploads\/2025\/12\/flip_chip-300x225.png 300w, https:\/\/labsites.rochester.edu\/nicholgroup\/wp-content\/uploads\/2025\/12\/flip_chip.png 747w\" sizes=\"auto, (max-width: 747px) 100vw, 747px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Surface acoustic waves (SAWs) are promising building blocks for quantum interconnects and transducers, but integrating them with semiconductor quantum dots remains challenging. In a new paper, we study flip-chip devices&hellip;<\/p>\n","protected":false},"author":26,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[16,36],"tags":[],"class_list":["post-9802","post","type-post","status-publish","format-standard","hentry","category-news","category-papers-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>New preprint - Nichol Group<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/labsites.rochester.edu\/nicholgroup\/new-preprint-8\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New preprint - Nichol Group\" \/>\n<meta property=\"og:description\" content=\"Surface acoustic waves (SAWs) are promising building blocks for quantum interconnects and transducers, but integrating them with semiconductor quantum dots remains challenging. 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