Leonardo Badurina
A5034435075- Cold Atom Physics and Bose-Einstein Condensates
- Atomic and Subatomic Physics Research
- Advanced Frequency and Time Standards
- Dark Matter and Cosmic Phenomena
- Quantum Mechanics and Applications
- Pulsars and Gravitational Waves Research
- Advanced Fiber Laser Technologies
- Quantum optics and atomic interactions
- Quantum Information and Cryptography
- Particle physics theoretical and experimental studies
- Atmospheric Ozone and Climate
- Laser Design and Applications
- Radioactive Decay and Measurement Techniques
- Orbital Angular Momentum in Optics
- Gamma-ray bursts and supernovae
- Computational Physics and Python Applications
- Astronomical Observations and Instrumentation
- Optical Network Technologies
- Relativity and Gravitational Theory
California Institute of Technology
2024-2025
King's College London
2020-2024
Leibniz University Hannover
2024
The King's College
2022
King's College Hospital
2022
We outline the experimental concept and key scientific capabilities of AION (Atom Interferometer Observatory Network), a proposed programme using cold strontium atoms to search for ultra-light dark matter, explore gravitational waves in mid-frequency range between peak sensitivities LISA LIGO/Virgo/ KAGRA/INDIGO/Einstein Telescope/Cosmic Explorer experiments, probe other frontiers fundamental physics. would complement planned searches as well mergers involving intermediate-mass black holes...
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around world to discuss exciting developments in large-scale atom interferometer (AI) prototypes and their potential for detecting ultralight dark matter gravitational waves. primary objective was lay groundwork an international TVLBAI proto-collaboration. collaboration aims unite researchers different institutions strategize...
Abstract We summarise the discussions at a virtual Community Workshop on Cold Atoms in Space concerning status of cold atom technologies, prospective scientific and societal opportunities offered by their deployment space, developments needed before atoms could be operated space. The technologies discussed include atomic clocks, quantum gravimeters accelerometers, interferometers. Prospective applications metrology, geodesy measurement terrestrial mass change due to, e.g., climate change,...
Single-photon atom gradiometry is a powerful experimental technique that can be employed to search for the oscillation of atomic transition energies induced by ultralight scalar dark matter (ULDM). In sub-Hz regime, background expected dominated gravity gradient noise (GGN), which arises as result mass fluctuations around experiment. this work, we model GGN surface Rayleigh waves, and construct likelihood-based analysis consistently folds into sensitivity estimates vertical gradiometers in...
We survey the prospective sensitivities of terrestrial and space-borne atom interferometers to gravitational waves generated by cosmological astrophysical sources, ultralight dark matter. discuss backgrounds from gradient noise in detectors, also binary pulsar asteroid detectors. compare LIGO LISA with those 100 m 1 km stages AION AI project, as well two options for proposed AEDGE space mission cold clouds either inside or outside spacecraft, considering possible sources mergers black holes...
Atom interferometry is a powerful experimental technique that can be employed to search for the oscillation of atomic transition energies induced by ultralight scalar dark matter (ULDM). Previous studies have focused on sensitivity ULDM km-length atom gradiometers, where interferometers are located at ends very long baselines. In this work, we generalize treatment time-dependent signal linearly-coupled candidate vertical gradiometers any length and find correction factors especially impact...
This paper outlines the centralized design and production of ultra-high-vacuum sidearm laser-stabilization systems for AION Ultra-Cold Strontium Laboratories. Commissioning data on residual gas steady-state pressures in chambers, magnetic field quality, laser stabilization, loading rate 3D magneto-optical trap are presented. Streamlining stabilization enabled Collaboration to build equip parallel five state-of-the-art Laboratories within 24 months by leveraging key expertise collaboration....
Atom gradiometers have emerged as compelling broadband probes of scalar ultralight dark matter (ULDM) candidates that oscillate with frequencies between approximately ${10}^{\ensuremath{-}2}\text{ }\text{ }\mathrm{Hz}$ and ${10}^{3}\text{ }\mathrm{Hz}$. ULDM signals greater than $\ensuremath{\sim}1\text{ exceed the expected Nyquist frequency atom gradiometers, so are affected by aliasing related phenomena, including signal folding spectral distortion. To facilitate discovery super-Nyquist...
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around world to discuss exciting developments in large-scale atom interferometer (AI) prototypes and their potential for detecting ultralight dark matter gravitational waves. primary objective was lay groundwork an international TVLBAI proto-collaboration. collaboration aims unite researchers different institutions strategize...
The next generation of gravitational-wave observatories can explore a wide range fundamental physics phenomena throughout the history universe. These include access to universe's binary black hole population cosmic time, expansion independent distance ladders, stochastic gravitational-waves from early-universe phase transitions, warped space-time in strong-field and high-velocity limit, equation state nuclear matter at neutron star post-merger densities, dark candidates through their...
An M-class mission proposal in response to the 2021 call ESA's science programme with a broad range of objectives fundamental physics, which include testing Equivalence Principle and Lorentz Invariance, searching for Ultralight Dark Matter probing Quantum Mechanics.
We study the decoherence of a system $N$ non-interacting heavy particles (atoms) due to coherent scattering with background gas. introduce new framework for computing induced phase shift and loss contrast arbitrary preparations $N$-particle quantum states. find shifts that are inherently $(N\geq 2)$-body effects may be searched in future experiments. analyze simple setups, including two-mode approximation an interferometer. fully entangled $N00N$ states, which resemble correlated positions...
We develop a general framework for calculating the leading-order, fully-relativistic contributions to gravitational phase shift in single-photon atom interferometers within context of linearized gravity. show that gradiometer observable, which only depends on interferometer propagation phase, can be written terms three distinct contributions: Doppler shift, accounts tidal displacement atoms along baseline, Shapiro delay arrival time photons at atom-light interaction points, and Einstein...
This paper outlines the centralised design and production of Ultra-High-Vacuum sidearm Laser-Stabilisation systems for AION Ultra-Cold Strontium Laboratories. Commissioning data on residual gas steady-state pressures in chambers, magnetic field quality, laser stabilisation, loading rate 3D Magneto-Optical Trap are presented. Streamlining stabilisation enabled Collaboration to build equip parallel five state-of-the-art Laboratories within 24 months by leveraging key expertise collaboration....
Atom gradiometers have emerged as compelling broadband probes of scalar ultralight dark matter (ULDM) candidates that oscillate with frequencies between approximately $10^{-2}$ Hz and $10^3$ Hz. ULDM signals greater than $\sim 1$ exceed the expected Nyquist frequency atom gradiometers, so are affected by aliasing related phenomena, including signal folding spectral distortion. To facilitate discovery super-Nyquist signals, in this work we investigate impact these effects on parameter...
Single-photon atom gradiometry is a powerful experimental technique that can be employed to search for the oscillation of atomic transition energies induced by ultralight scalar dark matter (ULDM). In sub-Hz regime background expected dominated gravity gradient noise (GGN), which arises as result mass fluctuations around experiment. this work we model GGN surface Rayleigh waves, and construct likelihood-based analysis consistently folds into sensitivity estimates vertical gradiometers in...