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Atomic and Laser Physics
Credit: Jack Hobhouse

Jesse Schelfhout

DPhil Student

Research theme

  • Quantum optics & ultra-cold matter

Sub department

  • Atomic and Laser Physics

Research groups

  • AION/Magis
jesse.schelfhout@physics.ox.ac.uk
Telephone: +44 (0)1865 282401
Clarendon Laboratory, room Old Library
ORCiD record
Google Scholar profile
  • About
  • Behind the scenes
  • Posters
  • Fine-structure constant
  • Publications

Terrestrial Very-Long-Baseline Atom Interferometry: summary of the second workshop

EPJ Quantum Technology SpringerOpen 12:1 (2025) 42

Authors:

Adam Abdalla, Mahiro Abe, Sven Abend, Mouine Abidi, Monika Aidelsburger, Antun Balaž, Hannah Banks, Rachel L Barcklay, Michele Barone, Michele Barsanti, Mark G Bason, Angelo Bassi, Aleksandar Belić, Shayne Bennetts, Daniela Bortoletto, Oliver Buchmueller

Abstract:

This summary of the second Terrestrial Very-Long-Baseline Atom Interferometry (TVLBAI) Workshop provides a comprehensive overview of our meeting held in London in April 2024 (Second Terrestrial Very-Long-Baseline Atom Interferometry Workshop, Imperial College, April 2024), building on the initial discussions during the inaugural workshop held at CERN in March 2023 (First Terrestrial Very-Long-Baseline Atom Interferometry Workshop, CERN, March 2023). Like the summary of the first workshop (Abend et al. in AVS Quantum Sci. 6:024701, 2024), this document records a critical milestone for the international atom interferometry community. It documents our concerted efforts to evaluate progress, address emerging challenges, and refine strategic directions for future large-scale atom interferometry projects. Our commitment to collaboration is manifested by the integration of diverse expertise and the coordination of international resources, all aimed at advancing the frontiers of atom interferometry physics and technology, as set out in a Memorandum of Understanding signed by over 50 institutions (Memorandum of Understanding for the Terrestrial Very Long Baseline Atom Interferometer Study).
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Terrestrial Very-Long-Baseline Atom Interferometry: Summary of the Second Workshop

(2024)

Authors:

Adam Abdalla, Mahiro Abe, Sven Abend, Mouine Abidi, Monika Aidelsburger, Ashkan Alibabaei, Baptiste Allard, John Antoniadis, Gianluigi Arduini, Nadja Augst, Philippos Balamatsias, Antun Balaz, Hannah Banks, Rachel L Barcklay, Michele Barone, Michele Barsanti, Mark G Bason, Angelo Bassi, Jean-Baptiste Bayle, Charles FA Baynham, Quentin Beaufils, Slyan Beldjoudi, Aleksandar Belic, Shayne Bennetts, Jose Bernabeu, Andrea Bertoldi, Clara Bigard, NP Bigelow, Robert Bingham, Diego Blas, Alexey Bobrick, Samuel Boehringer, Aleksandar Bogojevic, Kai Bongs, Daniela Bortoletto, Philippe Bouyer, Christian Brand, Oliver Buchmueller, Gabriela Buica, Sergio Calatroni, Lo Calmels, Priscilla Canizares, Benjamin Canuel, Ana Caramete, Laurentiu-Ioan Caramete, Matteo Carlesso, John Carlton, Samuel P Carman, Andrew Carroll, Mateo Casariego, Minoas Chairetis, Vassilis Charmandaris, Upasna Chauhan, Jiajun Chen, Maria Luisa, Chiofalo, Donatella Ciampini, Alessia Cimbri, Pierre Clad, Jonathon Coleman, Florin Lucian Constantin, Carlo R Contaldi, Robin Corgier, Bineet Dash, GJ Davies, Claudia de Rham, Albert De Roeck, Daniel Derr, Soumyodeep Dey, Fabio Di Pumpo, Goran S Djordjevic, Babette Doebrich, Peter Dornan, Michael Doser, Giannis Drougakis, Jacob Dunningham, Alisher Duspayev, Sajan Easo, Joshua Eby, Maxim Efremov, Gedminas Elertas, John Ellis, Nicholas Entin, Stephen Fairhurst, Mattia Fani, Farida Fassi, Pierre Fayet, Daniel Felea, Jie Feng, Robert Flack, Chris Foot, Tim Freegarde, Elina Fuchs, Naceur Gaaloul, Dongfeng Gao, Susan Gardner, Barry M Garraway, Carlos L Garrido Alzar, Alexandre Gauguet, Enno Giese, Patrick Gill, Gian F Giudice, Eric P Glasbrenner, Jonah Glick, Peter W Graham, Eduardo Granados, Paul F Griffin, Jordan Gue, Saida Guellati-Khelifa, Subhadeep Gupta, Vishu Gupta, Lucia Hackermueller, Martin Haehnelt, Timo Hakulinen, Klemens Hammerer, Ekim T Hanimeli, Tiffany Harte, Sabrina Hartmann, Leonie Hawkins, Aurelien Hees, Alexander Herbst, Thomas M Hird, Richard Hobson, Jason Hogan, Bodil Holst, Michael Holynski, Onur Hosten, Chung Chuan Hsu, Wayne Cheng-Wei Huang, Kenneth M Hughes, Kamran Hussain, Gert Huetsi, Antonio Iovino, Maria-Catalina Isfan, Gregor Janson, Peter Jeglic, Philippe Jetzer, Yijun Jiang, Gediminas Juzeliunas, Wilhelm Kaenders, Matti Kalliokoski, Alex Kehagias, Eva Kilian, Carsten Klempt, Peter Knight, Soumen Koley, Bernd Konrad, Tim Kovachy, Markus Krutzik, Mukesh Kumar, Pradeep Kumar, Hamza Labiad, Shau-Yu Lan, Arnaud Landragin, Greg Landsberg, Mehdi Langlois, Bryony Lanigan, Christophe Le Poncin-Lafitte, Samuel Lellouch, Bruno Leone, Marek Lewicki, Yu-Hung Lien, Lucas Lombriser, Elias Lopez Asamar, J Luis Lopez-Gonzalez, Adam Lowe, Chen Lu, Giuseppe Gaetano Luciano, Nathan Lundblad, Cristian de J Lpez Monjaraz, Maena Mackoit-Sinkeviien, Michele Maggiore, Anirban Majumdar, Konstantinos Makris, Azadeh Maleknejad, Anna L Marchant, Agnese Mariotti, Christos Markou, Barnaby Matthews, Anupam Mazumdar, Christopher McCabe, Matthias Meister, Giorgio Mentasti, Jonathan Menu, Giuseppe Messineo, Bernd Meyer-Hoppe, Salvatore Micalizio, Federica Migliaccio, Peter Millington, Milan Milosevic, Abhay Mishra, Jeremiah Mitchell, Gavin W Morley, Noam Mouelle, Juergen Mueller, David Newbold, Wei-Tou Ni, Christian Niehof, Johannes Noller, Senad Odzak, Daniel KL Oi, Andreas Oikonomou, Yasser Omar, Chris Overstreet, Julia Pahl, Sean Paling, Zhongyin Pan, George Pappas, Vinay Pareek, Elizabeth Pasatembou, Mauro Paternostro, Vishal K Pathak, Emanuele Pelucchi, Franck Pereira dos Santos, Achim Peters, Annie Pichery, Igor Pikovski, Apostolos Pilaftsis, Florentina-Crenguta Pislan, Robert Plunkett, Rosa Poggiani, Marco Prevedelli, Vishnupriya Puthiya Veettil, Johann Rafelski, Juhan Raidal, Martti Raidal, Ernst Maria Rasel, Sebastien Renaux-Petel, Andrea Richaud, Pedro Rivero-Antunez, Tangui Rodzinka, Albert Roura, Jan Rudolph, Dylan Sabulsky, Marianna S Safronova, Mairi Sakellariadou, Leonardo Salvi, Muhammed Sameed, Sumit Sarkar, Patrik Schach, Stefan Alaric Schaeffer, Jesse Schelfhout, Manuel Schilling, Vladimir Schkolnik, Wolfgang P Schleich, Dennis Schlippert, Ulrich Schneider, Florian Schreck, Ariel Schwartzman, Nico Schwersenz, Olga Sergijenko, Haifa Rejeb Sfar, Lijing Shao, Ian Shipsey, Jing Shu, Yeshpal Singh, Carlos F Sopuerta, Marianna Sorba, Fiodor Sorrentino, Alessandro DAM Spallicci, Petruta Stefanescu, Nikolaos Stergioulas, Daniel Stoerk, Jannik Stroehle, Hrudya Thaivalappil Sunilkumar, Zoie Tam, Dhruv Tandon, Yijun Tang, Dorothee Tell, Jacques Tempere, Dylan J Temples, Rohit P Thampy, Ingmari C Tietje, Guglielmo M Tino, Jonathan N Tinsley, Ovidiu Tintareanu Mircea, Kimberly Tkalec, Andrew J Tolley, Vincenza Tornatore, Alejandro Torres-Orjuela, Philipp Treutlein, Andrea Trombettoni, Christian Ufrecht, Juan Urrutia, Tristan Valenzuela, Linda R Valerio, Maurits van der Grinten, Ville Vaskonen, Veronica Vazquez-Aceves, Hardi Veermae, Flavio Vetrano, Nikolay V Vitanov, Wolf von Klitzing, Sebastian Wald, Thomas Walker, Reinhold Walser, Jin Wang, Yan Wang, CA Weidner, Andr Wenzlawski, Michael Werner, Lisa Woerner, Mohamed E Yahia, Efe Yazgan, Emmanuel Zambrini Cruzeiro, M Zarei, Mingsheng Zhan, Shengnan Zhang, Lin Zhou, Erik Zupanic
Details from ArXiV

A single-photon large-momentum-transfer atom interferometry scheme for Sr or Yb atoms with application to determining the fine-structure constant

(2024)

Authors:

Jesse S Schelfhout, Thomas M Hird, Kenneth M Hughes, Christopher J Foot
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Found and Lost: The Unexplored Potential of an Alternative Sheath Pinch

50th EPS Conference on Plasma Physics, EPS 2024 (2024)

Authors:

M Storey, K de Lacy, J Schelfhout, D Pfefferlé, LRO Storey

Abstract:

A method to confine plasmas based on a new form of z-pinch was discovered and published in the late 1970s by two European physicists, Owen Storey and Laurent Cairó, building on a prior discovery by American astrophysicist Eugene Parker [1]. They proved that when supersonically flowing plasma is confined by a magnetic field parallel to the flow, there are circumstances in which a secondary magnetic field discovered by Parker emerges that reinforces the confinement, thereby reducing the requirement for the external magnetic field. The resulting overall confining field is concentrated in the thin static sheath-like boundary layer between the plasma and the external field, while the bulk plasma remains field-free and current-free. They suggested that this might be applicable to fusion and proposed a conceptual device exploiting this effect [2, 3]. The confinement in this device would be intrinsically MHD-stable, and more energetically efficient than that of most devices currently under investigation. Despite its promises, this method was not investigated further at the time and eventually faded from memories. Moreover, the effect discovered by Parker has not yet been observed in numerical simulation or experimentally, because it has never been sought. In collaboration with one of the original scientists, our independent research group is reviewing and continuing this work to bring it to a Technology Readiness Level of 3 [4]. This involves numerical simulations to observe the emergent effect and to characterise the proposed device concept, including its plasma confinement and stability characteristics, and means to maintain plasma density, temperature, and bulk flow velocity. In the success case, the proposed device has the potential to confine an isotropic plasma more efficiently and economically, with immunity to the major MHD instabilities, good accessibility due to a simple and modular design with high aspect ratio, and continuous operation. This short paper based on the poster presented at the 50th Conference of the European Plasma Society in Salamanca, Spain, in July 2024, aims to present briefly Parker’s Effect and how it can be used to confine a flowing plasma using a sheath pinch, how this possibility can be verified. We summarise recent work and present a high-level work plan. We are seeking collaborators for this venture.

Centralised Design and Production of the Ultra-High Vacuum and Laser-Stabilisation Systems for the AION Ultra-Cold Strontium Laboratories

(2023)

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, M 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 Buchmuller, 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, C Gomez, 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
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