Name: MADMAX/RADES Collaboration Meeting - October 2025
Start: 2025-10-19T15:00:00+02:00
End: 2025-10-22T15:30:00+02:00
Location: Ringberg Castle

MADMAX/RADES Collaboration Meeting - October 2025

from Sunday 19 October 2025 (15:00) to Wednesday 22 October 2025 (15:30)

Monday 13 October 2025
Tuesday 14 October 2025
Wednesday 15 October 2025
Thursday 16 October 2025
Friday 17 October 2025
Saturday 18 October 2025
Sunday 19 October 2025

15:30 Bus transfer
Bus transfer
15:30 - 17:00
17:15 Status of axion experiments
Status of axion experiments
17:15 - 18:15
Contributions

17:15 Axion experiments, the landscape

17:50 Discussion
18:30 Dinner
Dinner
18:30 - 19:30
19:30 MADMAX & RADES Welcome session
MADMAX & RADES Welcome session
19:30 - 21:00
Contributions

19:30 Welcome - Babette Dobrich (Max Planck Society (DE)) Bela Alexander Majorovits (Max Planck Society (DE))

19:40 Why do we need the axion? - Georgi Dvali

20:20 MADMAX Introduction - Bela Alexander Majorovits (Max Planck Society (DE))

20:40 RADES Introduction - Babette Dobrich (Max Planck Society (DE))

Monday 20 October 2025

08:00 Breakfast
Breakfast
08:00 - 09:00
09:00 Determination of expected signal
Determination of expected signal
09:00 - 10:30
Contributions

09:00 RADES Q-factor and bead pull measurements - Jose Maria Garcia Barcelo (Max Planck Institut für Physik)

09:20 How to obtain MADMAX boost factor and determining the expected signal strength? - Anton Evgeniev Ivanov (Max Planck Society (DE))

09:40 Determination of boost factor uncertainties via simulations - David Leppla-Weber (Hamburg University (DE))

10:00 Common discussion
10:30 Coffee break
Coffee break
10:30 - 11:00
11:00 Magnet infrastructure and CERN activities
Magnet infrastructure and CERN activities
11:00 - 12:30
Contributions

11:00 MADMAX magnet: short and mid & long term perspectives - Bela Alexander Majorovits (Max Planck Society (DE))

11:20 BabyIAXO magnet status - Igor Garcia Irastorza (Centro de Astropartículas y Física de Altas Energías (CAPA) / Universidad de Zaragoza (ES))

11:40 CERN activities - Pascal Pralavorio (CPPM, Aix-Marseille Université, CNRS/IN2P3 (FR)) Sergio Calatroni (CERN)

12:00 Discussion
12:30 LUNCH
LUNCH
12:30 - 14:00
14:00 Parallel I - Lecture hall
Parallel I - Lecture hall
14:00 - 15:30
Contributions

14:00 HFGW detection and analysis - Kristof Schmieden (University of Bonn (DE))

14:20 Haloscope signal injection - Ziheng Yang

14:35 Status of activities at Unizar - Yikun Gu (Universidad de Zaragoza (ES))

14:55 Development of a single-photon detector for the DQHF project - Danilo Angelone

15:15 Ideas for an acquisition system for RADES LF - Egge
15:30 Coffee break
Coffee break
15:30 - 16:00
16:00 Quantum detectors mid & long term plans
Quantum detectors mid & long term plans
16:00 - 17:30
Contributions

16:00 TWPAs for axion research - Guilliam Butseraen (Silent Waves)

16:20 MADMAX TWPA integration - HeeSu Byun (MPP)

16:40 Graphene single photon detectors for axion research - KC Fong (Northeastern University)

17:00 Single photon detectors - David Diez Ibanez (Universidad de Zaragoza (ES))
17:30 Castle tour
Castle tour
17:30 - 18:30

18:30 Dinner
Dinner
18:30 - 19:30
19:30 Axion detectors: Science team building - Babette Dobrich (Max Planck Society (DE)) Cristian Cogollos Trivino (Max Planck Institute for Physics (DE))
Axion detectors: Science team building
- Babette Dobrich (Max Planck Society (DE))
- Cristian Cogollos Trivino (Max Planck Institute for Physics (DE))
19:30 - 21:00
MADMAX Collaboration board - Library
MADMAX Collaboration board - Library
19:30 - 21:00
Tuesday 21 October 2025

08:00 Breakfast
Breakfast
08:00 - 09:00
09:00
09:00 - 10:30
Contributions

09:00 RFI filtering of DC lines - HeeSu Byun (MPP)

09:20 OB300 structure readiness report - Erika Garutti (Hamburg University (DE))

09:40 Status of the positioning mechanics (motors, interferometers) - Dominik Bergerman (RWTH)

10:00 Horn antenna setup mechanics - Georg Obermüller (MPP)
Parallel II - green seminar room
Parallel II - green seminar room
09:00 - 10:30
Contributions

09:00 Update on DQLF and DQHF cavities design - Alejandro Díaz-Morcillo (Universidad Politécnica de Cartagena) Jose Ramón Navarro Madrid (Universidad Politécnica de Cartagena)

09:20 Progress on HTS coatings of cavities and characterization - Guilherme Telles

09:40 MPP cylindrical cavity characterization and its employment in haloscope setups - Jose Maria Garcia Barcelo (Max Planck Institut für Physik)

10:00 Towards a scanning mass haloscope with magnetic tunability - Jeanne Bally
10:30 Coffee break
Coffee break
10:30 - 11:00
11:00 Bayesian vs. Frequentist
Bayesian vs. Frequentist
11:00 - 12:30
Contributions

11:00 RADES analysis procedure - Cristian Cogollos Trivino (Max Planck Institute for Physics (DE))

11:20 MADMAX analysis procedure - Haotian Wang (RWTH)

11:40 Guided discussion on differences and common approach - Allen Caldwell (Max-Planck-Institut fur Physik (DE))
12:30 LUNCH
LUNCH
12:30 - 14:00
14:00 Calibration, DAQ and data taking
Calibration, DAQ and data taking
14:00 - 15:30
Contributions

14:00 TRL calibration for MADMAX - Juan PA Maldonado (Max Planck Institute for Physics, Germany) Juan Pablo Arcila Maldonado (Max Planck Institute for Physics)

14:20 DAQ system and power calibration for MADMAX - Alan Aliyali (UHH) Xiang Liu

14:50 First double cavity tests at IFAE - Pol Forn-Díaz

15:10 General Discussion
15:30 Coffee break
Coffee break
15:30 - 16:00
16:00 Lecture hall
Lecture hall
16:00 - 17:30
Contributions

16:00 Comparison bead pull vs. gradient method - Max Zimmermann (RWTH)

16:20 OB300 bead pull measuremets - Lea Stankewitz (UHH)

16:35 CB200 10 disk configuration: status and plans - Anton Evgeniev Ivanov (Max Planck Society (DE))
17:30

17:30 - 18:30

17:30 - 18:30

18:30 Dinner
Dinner
18:30 - 19:45
19:55
19:55 - 21:30
Contributions

20:00 Decay of topological defects and axion miniclusters - Javier Redondo (Universidad de Zaragoza)

20:30 Supernova limits - Benjamin Ryan Safdi (University of California Berkeley (US))

21:00 Alpha status - Alexander Millar (Stockholm University)
Wednesday 22 October 2025

08:00 Breakfast
Breakfast
08:00 - 09:00
09:00 paralell III - Lecture hall
paralell III - Lecture hall
09:00 - 10:30
Contributions

09:00 Optimal control for qubit-based photon detection and parity measurements - Marko Kuzmanović (Aalto University)

09:20 Time-domain non-linear quantum interferometry as a resources for haloscopes - Chloé FRUY Takis Kontos

09:40 Transmon fabrication plans at HLL - Tobias Ortmann (Max-Planck-Institut für Physik) Tobias Ortmann (Max-Planck-Institut für Physik)

10:00 Roundtable of pending topics - Babette Dobrich (Max Planck Society (DE))
10:30 Coffee break
Coffee break
10:30 - 11:00
11:00
11:00 - 12:00
Contributions

11:00 Outreach activities and future plans - Axel Lindner (Deutsches Elektronen-Synchrotron (DE))

11:20 Artist overview of the meeting - Olivier Rossel

11:40 General discussions
12:00 LUNCH
LUNCH
12:00 - 13:00
13:00 MADMAX and RADES, what have we learned?
MADMAX and RADES, what have we learned?
13:00 - 14:00
Contributions

13:00 Summary of inside axion synergetic values - Bela Alexander Majorovits (Max Planck Society (DE))

13:20 DFSZ/KFSZ theory guidelines - Frank Daniel Steffen (Max-Planck-Institute of Physics)

13:40 Discussion
14:00 Bus transfer
Bus transfer
14:00 - 15:30

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