Conveners
Superconducting cavities, materials, and quantum technology for detection of weakly-coupled particles: Session 1
- Yoni Khan
Superconducting cavities, materials, and quantum technology for detection of weakly-coupled particles: Session 2
- Caterina Braggio
Superconducting cavities, materials, and quantum technology for detection of weakly-coupled particles: Session 3
- Claudio Gatti (Istituto Nazionale di Fisica Nucleare)
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Yoni Khan (University of Illinois at Urbana-Champaign)03/09/2023, 09:00
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Gianpaolo Carosi (Lawrence Livermore National Laboratory)03/09/2023, 09:10
The axion is a hypothetical particle that may solve two problems in particle physics & cosmology, the Strong-CP problem and the nature of dark matter. The Axion Dark Matter Experiment (ADMX), which started at LLNL in the mid-1990s, is the DOE Flagship search for these particles. The experiment uses tunable resonant cavities in a large static magnetic field to enhance the conversion of axions...
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Alexander Romanenko (Fermilab)03/09/2023, 09:30
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Raphael Cervantes (Fermilab)03/09/2023, 09:45
Haloscopes consisting of a microwave cavity with a high quality factor (Q) connected to low-noise electronics have been deployed to detect wavelike axions and dark photons. But the dark matter mass is unknown, so haloscopes must be tunable to search through the photon coupling vs. mass parameter space. Therefore, the scan rate for haloscope experiments is a crucial figure of merit and is...
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Tanay Roy (Fermilab)03/09/2023, 10:00
Superconducting radio frequency (SRF) cavities offer an excellent platform for storing and processing quantum information due to their exceptionally long lifetimes and large accessible Hilbert spaces. A common strategy to manipulate the quantum states is to use a nonlinear element like a transmon. Nevertheless, constructing a 3D SRF architecture with sustained cavity lifetimes presents several...
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Andrew Casey (Royal Holloway, University of London)03/09/2023, 10:15
At ultra-low temperatures (ULT) macroscopic quantum states form, such as superfluids, that have unique potential as quantum sensors for rare interactions. The QUEST-DMC QTFP project is deploying this technology at two sites capable of reaching ULT, Royal Holloway (RHUL) and Lancaster University (ULANC), both members of the European Microkelvin Platform, EMP (https://emplatform.eu/). QUEST-DMC...
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Mustafa Bal (Fermilab)03/09/2023, 11:35
The SQMS Center has launched a systematic investigation to help identify sources of microwave loss and decoherence in superconducting quantum devices, and converge on materials/passivations to mitigate these loss mechanisms. In a Center wide effort, the surface oxides of Nb, singled out to be a significant source of decoherence, is replaced by a passivation layer. A wide range of materials has...
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Aaron Chou (Fermilab)03/09/2023, 11:50
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Harikrishnan Ramani (Stanford University)03/09/2023, 12:10
Axion Dark Matter, Dark Photon Dark matter and Millicharged particle dark matter are some of the simplest and popular models of dark matter and are looked for in various experiments. Yet, there continue to exist inaccessible regions in interaction and mass parameter space for these models. In this talk I propose a new way to detect the tiny electric fields produced by these dark matter...
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Giacomo Marocco (Lawrence Berkeley Lab)03/09/2023, 12:30
Quantum sensors offer the most promising way to detect a number of light, weakly coupled particles, such as gravitons or axions. Cavities, as well as other optomechanical systems, are current realizations of such sensors in operation. I will discuss how a theoretical tool from quantum optics, the input-output formalism, allows calculation and understanding of the sensitivity of these...
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Sabrina Maniscalco (Algorithmiq and Aalto University, Finland)03/09/2023, 12:50
Until fault-tolerance becomes implementable at scale, quantum computing will heavily rely on noise mitigation techniques. Entering the era of quantum utility and performing complex enough quantum simulation requires the use of efficient and scalable noise mitigation strategies.
While methods such as zero noise extrapolation with probabilistic error amplification (ZNE-PEA) and probabilistic...
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Caterina Braggio (Istituto Nazionale di Fisica Nucleare)03/09/2023, 15:00
I will report about a haloscope experiment in which a hybrid surfaced (copper-NbTi) cavity immersed in a 2 T-magnetic field has been readout by a transmon-based single microwave photon detector (SMPD). The cavity frequency could be varied to probe for different axion masses around 30.5 microelectronvolt by means of a nanopositioner, and I will report about the upper limit that we obtained on...
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Woohyun Chung (IBS-CAPP)03/09/2023, 15:15
The pursuit of axion dark matter search has long been a daunting task, but recent advances in superconducting materials research have brought physicists closer than ever to unlocking the secrets of this elusive particle. At the forefront of this search is the Center for Axion and Precision Physics research (CAPP), which has established a state-of-the-art detector facility in Korea featuring...
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Sam Posen (Fermilab)03/09/2023, 15:35
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Andrew Sonnenschein (Fermilab)03/09/2023, 15:50
We introduce the Broadband Reflector Experiment for Axion Detection (BREAD) conceptual design and science program. BREAD is a dish antenna experiment based on a coaxial cylindrical reflector design which converts axions or dark photons into ordinary photons and focuses them onto a small sensor. This unique geometry is well matched to the requirements of superconducting quantum sensors since...
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03/09/2023, 16:10