UPLOAD-ANYON: Progress Towards an Optimised Twisted Anyon Cavity with High-Sensitivity AM-Noise Detection for an Ultralight Axion Dark Matter Search
Robert Crew, Emma Paterson, Maxim Goryachev, Eugene Ivanov, Pashupati Dhakal, Tugrul Talha Ersoz, Michael Tobar, Jeremy Bourhill
https://arxiv.org/abs/2608.19225 https://arxiv.org/pdf/2608.19225 https://arxiv.org/html/2608.19225
arXiv:2608.19225v1 Announce Type: new
Abstract: We propose a superconducting single-mode microwave haloscope based on helical cavity resonators for the detection of ultralight dark matter axions over the mass range $10^{-18}$ to $10^{-13}\,\mathrm{eV}$. Building on the single-mode helical-cavity concept introduced by Bourhill et al. [Phys. Rev. D 108, 052014 (2023); arXiv:2208.01640], we use an inverse-design framework to develop practical resonator geometries compatible with superconducting niobium fabrication. The optimisation employs a figure of merit derived to minimise the measurement time required to achieve a fixed experimental sensitivity. Relative to the heuristic M\"obius-geometry benchmark, the best subtractively manufacturable bulk-niobium design achieves a figure of merit more than three orders of magnitude larger. An experimentally informed microwave interferometric readout model, incorporating measured electronics noise and active suppression of pump amplitude noise, is used to project the sensitivity of the proposed experiment. For an acquisition time of three months, the haloscope is projected to reach $g_{a\gamma\gamma}<10^{-11}\,\mathrm{GeV}^{-1}$ across more than four orders of magnitude in axion mass. The projected sensitivity extends approximately one order of magnitude below the current exclusion limits set by CAST, providing a practical pathway towards a high-sensitivity direct search for ultralight dark matter axions.
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ChatGPT is a bullshit generator.
To understand AI, we should think harder about bullshit
-- Submitted by Alan Blackwell on Thu, 09/11/2023
https://www.cst.cam.ac.uk/blog/afb21/oops-we-automated-bullshit
LwM output! 'We present a dataset of text from English-language newspaper articles that describe some sort of accident involving machinery. The articles were annotated by volunteers on Zooniverse between 2019 and 2023. The articles were selected from over 20 newspaper titles published between 1835 and 1920.' https://doi.org/10.23636/xrk4-45…
#TuneTuesday (Jul 7)
The Netherlands’ 🇳🇱 entry for #Eurovision 2023 was “Burning Daylight” by Mia Nicolai and Dion Cooper. Maybe it’s because it’s not the usual kitschy Eurovision song why I like it a lot (and why it wasn’t in the final), but it actually reminds me of “Arcade” by Duncan Laurenc…
from my link log —
No vehicles in the park: a game about content moderation.
https://novehiclesinthepark.com/
saved 2023-06-24 https://dotat.at/:/1BJCD…
Making Rust supply chain attacks harder with Cackle
Alex is a software engineer who has built a tool which she licences to her customers. She only has a small number of clients, but they like her tool. She built her tool using Rust, with about 20 direct dependencies from crates.io. When you count indirect dependencies, her tool has about 250 dependencies.
— by @…
Civic Museums VI🏛️
民间博物馆 VI 🏛️
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Wise
2023 war ich in Wien bei der #Regenbogenparade. Jetzt wurden die drei Männer veturteilt, die die Veranstaltung sptengen wollten.
2023 war ich in Wien bei der #Regenbogenparade. Jetzt wurden die drei Männer veturteilt, die die Veranstaltung sptengen wollten.
Man muss Lanz nicht mögen. Gestern Abend hatte Manfred Weber (CSU) jedenfalls kein leichtes Spiel.
Es ging hauptsächlich um den Iran-Krieg und am Ende noch um unsere Automobilindustrie. Weber wirkt völlig planlos.
https://www.morgenpost…
Vanaf zaterdag geen scheepvaart op Twentekanaal vanwege droogte | Transport Online
https://www.transport-online.nl/133012/vanaf-zaterdag-geen-scheepvaart-op-twentekanaal-vanwege-droogte/ (2026)
Weet u het nog? Paar jaar geleden vond iemand t nog een goed plan om er een SMR neer te zetten.... 🙃
Kleine kerncentrales in Twente? Klimaatminister legt bal bij gemeenten en provincie - 1Twente
https://www.1twente.nl/artikel/3242978/kleinschalige-kerncentrales-in-twente-klimaatminister-legt-de-bal-bij-gemeenten-en-provincie (2023)
(Dat gelijk duidelijk was dat de locatie totaal niet geschikt was, was geen reden om gelijk te stoppen met dat plan..)
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