Microwave Cavities and Detectors for Axion Research

Description

The nature of dark matter remains one of the preeminent mysteries in physics and cosmology. It appears to require the existence of new particles whose interactions to ordinary matter are extraordinarily feeble. One well-motivated candidate is the axion, an extraordinarily light neutral particle that may possibly be detected by looking for their conversion to detectable microwaves in the presence of a strong magnetic field. This has led to a number of experimental searches that are beginning to probe plausible axion model space and may discover the axion in the near future. These proceedings discuss the challenges of designing and operating tunable resonant cavities and detectors at ultralow temperatures. The topics discussed here have potential application far beyond the field of dark matter detection and may be applied to resonant cavities for accelerators as well as designing superconducting detectors for quantum information and computing applications. This work is intended for graduate students and researchers interested in learning the unique requirements for designing and operating microwave cavities and detectors for direct axion searches and to introduce several proposed experimental concepts that are still in the prototype stage. Front Matter ....Pages i-xi Introduction to the Numerical Design of RF-Structures with Special Consideration for Axion Detector Design: A Tutorial (Frank L. Krawczyk)....Pages 1-19 Symmetry Breaking in Haloscope Microwave Cavities (Ian Stern, N. S. Sullivan, D. B. Tanner)....Pages 21-29 Pound Cavity Tuning (Shriram Jois, N. S. Sullivan, D. B. Tanner)....Pages 31-37 Modification of a Commercial Phase Shifter for Cryogenic Applications (Richard F. Bradley)....Pages 39-44 Application of the Bead Perturbation Technique to a Study of a Tunable 5 GHz Annular Cavity (Nicholas M. Rapidis)....Pages 45-51 Novel Resonators for Axion Haloscopes (Ben T. McAllister, Maxim Goryachev, Michael E. Tobar)....Pages 53-59 Photonic Band Gap Cavities for a Future ADMX (Nathan Woollett, Gianpaolo Carosi)....Pages 61-65 First Test of a Photonic Band Gap Structure for HAYSTAC (Samantha M. Lewis)....Pages 67-73 Hybrid Cavities for Axion Detectors (Ian Stern, D. B. Tanner)....Pages 75-85 An Introduction to Superconducting Qubits and Circuit Quantum Electrodynamics (Nicholas Materise)....Pages 87-95 Detecting Axion Dark Matter with Superconducting Qubits (Akash Dixit, Aaron Chou, David Schuster)....Pages 97-103 Recent Technical Improvements to the HAYSTAC Experiment (L. Zhong, B. M. Brubaker, S. B. Cahn, S. K. Lamoreaux)....Pages 105-109 Multiple-Cavity Detector for Axion Search (Sung Woo Youn)....Pages 111-117 The ORGAN Experiment (Ben T. McAllister, Michael E. Tobar)....Pages 119-125 Searching for Low Mass Axions with an LC Circuit (N. Crisosto, P. Sikivie, N. S. Sullivan, D. B. Tanner)....Pages 127-133 ABRACADABRA: A Broadband/Resonant Search for Axions (Yonatan Kahn for the ABRACADABRA Collaboration)....Pages 135-142 Searching Axions through Coupling with Spin: The QUAX Experiment (N. Crescini, D. Alesini, C. Braggio, G. Carugno, D. Di Gioacchino, C. S. Gallo et al.)....Pages 143-150 Progress on the ARIADNE Axion Experiment (A. A. Geraci for the ARIADNE Collaboration, H. Fosbinder-Elkins, C. Lohmeyer, J. Dargert, M. Cunningham, M. Harkness et al.)....Pages 151-161