John March-Russell: Publications

Centralized design and production of the ultra-high vacuum and laser-stabilization systems for the AION ultra-cold strontium laboratories

AVS Quantum Science American Vacuum Society 6:1 (2024)

Authors:

B Stray, O Ennis, S Hedges, S Dey, M Langlois, K Bongs, S Lellouch, M Holynski, B Bostwick, J Chen, Z Eyler, V Gibson, TL Harte, CC Hsu, M Karzazi, J Mitchell, N Mouelle, U Schneider, Y Tang, K Tkalcec, Y Zhi, K Clarke, A Vick, K Bridges, J Coleman, G Elertas, L Hawkins, S Hindley, K Hussain, C Metelko, H Throssell, CFA Baynham, O Buchmüller, D Evans, R Hobson, L Iannizzotto-Venezze, A Josset, E Pasatembou, BE Sauer, MR Tarbutt, L Badurina, A Beniwal, D Blas, J Carlton, J Ellis, C McCabe, E Bentine, M Booth, D Bortoletto, C Foot, CM Gómez-Monedero Castellanos, T Hird, K Hughes, A James, A Lowe, J March-Russell, J Schelfhout, I Shipsey, D Weatherill, D Wood, S Balashov, MG Bason, J Boehm, M Courthold, M van der Grinten, P Majewski, AL Marchant, D Newbold, Z Pan, Z Tam, T Valenzuela, I Wilmut

Abstract:

This paper outlines the centralized design and production of the ultra-high-vacuum sidearm and laser-stabilization systems for the AION Ultra-Cold Strontium Laboratories. Commissioning data on the residual gas and steady-state pressures in the sidearm chambers, on magnetic field quality, on laser stabilization, and on the loading rate for the 3D magneto-optical trap are presented. Streamlining the design and production of the sidearm and laser stabilization systems enabled the AION Collaboration to build and equip in parallel five state-of-the-art Ultra-Cold Strontium Laboratories within 24 months by leveraging key expertise in the collaboration. This approach could serve as a model for the development and construction of other cold atom experiments, such as atomic clock experiments and neutral atom quantum computing systems, by establishing dedicated design and production units at national laboratories.

Chern-Simons bubbles: Lopsided false vacuum decay in axion electrodynamics

(2024)

Authors:

Saquib Hassan, John March-Russell, Georges Obied

QUEST-DMC: Background Modelling and Resulting Heat Deposit for a Superfluid Helium-3 Bolometer

(2024)

Authors:

S Autti, A Casey, N Eng, N Darvishi, P Franchini, RP Haley, PJ Heikkinen, A Kemp, E Leason, LV Levitin, J Monroe, J March-Russel, MT Noble, JR Prance, X Rojas, T Salmon, J Saunders, R Smith, MD Thompson, V Tsepelin, SM West, L Whitehead, K Zhang, DE Zmeev

QUEST-DMC superfluid $^3$He detector for sub-GeV dark matter

(2023)

Authors:

S Autti, A Casey, N Eng, N Darvishi, P Franchini, RP Haley, PJ Heikkinen, A Jennings, A Kemp, E Leason, LV Levitin, J Monroe, J March-Russel, MT Noble, JR Prance, X Rojas, T Salmon, J Saunders, R Smith, MD Thompson, V Tsepelin, SM West, L Whitehead, VV Zavjalov, DE Zmeev

Searching for wave-like dark matter with QSHS

SciPost Physics Proceedings SciPost 12 (2023)

Authors:

Ian Bailey, Bhaswati Chakraborty, Gemma Chapman, Edward J Daw, John Gallop, Gianluca Gregori, Edward Hardy, Ling Hao, Edward Laird, Peter Leek, John March-Russell, Phil Meeson, Seaárbhan Ó Peatáin, Yuri Pashkin, Mitchell G Perry, Michele Piscitelli, Edward Romans, Subir Sarkar, Paul J Smith, Ningqiang Song, Mahesh Soni, Boon Kok Tan, Stephen West, Stafford Withington

Abstract:

In 2021 the Quantum Sensors for the Hidden Sector (QSHS) collaboration was founded in the UK and received funding to develop and demonstrate quantum devices with the potential to detect hidden sector particles in the μeV to 100 μeV mass window. The collaboration has been developing a range of devices. It is building a high-field, low-temperature facility at the University of Sheffield to characterise and test the devices in a haloscope geometry. This paper introduces the collaboration's motivation, aims, and progress.

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