A5047399310- Dark Matter and Cosmic Phenomena
- Atomic and Subatomic Physics Research
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Cold Atom Physics and Bose-Einstein Condensates
- Adaptive optics and wavefront sensing
- Superconducting and THz Device Technology
- Astrophysics and Cosmic Phenomena
- Advanced X-ray Imaging Techniques
- Pulsars and Gravitational Waves Research
- Cosmology and Gravitation Theories
- Particle Accelerators and Free-Electron Lasers
- Geophysics and Gravity Measurements
- Mechanical and Optical Resonators
- Quantum Information and Cryptography
- Radio Astronomy Observations and Technology
- Relativity and Gravitational Theory
- Quantum Chromodynamics and Particle Interactions
- Astronomy and Astrophysical Research
- Solar and Space Plasma Dynamics
Institute of Theoretical Physics
2022-2025
University of Chinese Academy of Sciences
2022-2025
Chinese Academy of Sciences
2022-2024
Institute of High Energy Physics
2023
National Centre for Nuclear Research
2023
Hunan University
2022
We develop formalisms for a network of vector sensors, sensitive to certain spatial components the signals, identify properties light axion or dark photon background. These bosonic fields contribute vectorlike signals in detectors, including effective magnetic triggering spin precession, electric currents shielded room, and forces on matter. The interplay between pair sensors baseline that separates them can potentially uncover rich information bosons, angular distribution, polarization...
Dark photons have emerged as promising candidates for dark matter, and their search is a top priority in particle physics, astrophysics, cosmology. We report the first use of tunable niobium superconducting radio-frequency cavity scan photon matter with innovative data analysis techniques. mechanically adjusted resonant frequency submerged liquid helium at temperature 2 K, scanned mass over range 1.37 MHz centered 1.3 GHz. Our study leveraged cavity's remarkably high quality factors...
Dark photons have emerged as promising candidates for dark matter, and their search is a top priority in particle physics, astrophysics, cosmology. We report the first use of tunable niobium superconducting radio-frequency cavity scan photon matter with innovative data analysis techniques. mechanically adjusted resonant frequency submerged liquid helium at temperature $2$ K, scanned mass over range $1.37$ MHz centered $1.3$ GHz. Our study leveraged cavity's remarkably high quality factors...
The Event Horizon Telescope (EHT) has revolutionized our ability to study black holes by providing unprecedented spatial resolution and unveiling horizon-scale details. With advancements leading the next-generation EHT, there is potential probe even deeper into hole's dark region, especially inner shadow characterized low-intensity foreground emissions from jet, thanks a significant enhancement in dynamic range two orders of magnitude. We demonstrate how such enhanced observations could...
The stochastic gravitational wave background (SGWB) consists of an incoherent collection waves from both astrophysical and cosmological sources. To distinguish the SGWB noise, it is essential to verify its quadrupolar nature, exemplified by cross-correlations among pairs pulsars within a pulsar timing array, commonly referred as Hellings-Downs curve. We extend concept correlations general detectors, classified their antenna responses. This study involves space-based missions such laser...
Dark photons, aside from constituting non-relativistic dark matter, can also be generated relativistically through the decay or annihilation of other matter candidates, contributing to a galactic photon background. The production photons tends favor specific polarization modes, determined by microscopic coupling between and photons. We leverage data obtained previous searches for using superconducting radio-frequency cavity explore fluxes. interplay anisotropic directions Earth's rotation...
Electromagnetic resonant systems, such as cavities or LC circuits, have emerged powerful detectors for probing ultralight boson dark matter and high-frequency gravitational waves. However, the limited bandwidth of conventional single-mode resonators, imposed by quantum fluctuations, necessitates numerous scan steps to cover broad unexplored frequency regions. The incorporation multiple auxiliary modes can realize a broadband detector while maintaining substantial signal response. broadened...