A5023680410- Dark Matter and Cosmic Phenomena
- Atomic and Subatomic Physics Research
- Cold Atom Physics and Bose-Einstein Condensates
- Cosmology and Gravitation Theories
- Advanced Thermodynamics and Statistical Mechanics
- Complex Systems and Time Series Analysis
- Galaxies: Formation, Evolution, Phenomena
- Target Tracking and Data Fusion in Sensor Networks
- Particle physics theoretical and experimental studies
- Statistical Mechanics and Entropy
- Mechanical and Optical Resonators
- Quantum Mechanics and Applications
- Semiconductor materials and devices
- Particle Detector Development and Performance
- Quantum Information and Cryptography
- Quantum Electrodynamics and Casimir Effect
- Microwave Dielectric Ceramics Synthesis
- High-Energy Particle Collisions Research
- Fault Detection and Control Systems
- CCD and CMOS Imaging Sensors
- Computational Physics and Python Applications
- Quantum Computing Algorithms and Architecture
- Scientific Research and Discoveries
- thermodynamics and calorimetric analyses
Helmholtz Institute Mainz
2018-2023
Johannes Gutenberg University Mainz
2018-2023
GSI Helmholtz Centre for Heavy Ion Research
2022-2023
University of Rochester
2023
ORCID
2021
University of Maryland, College Park
2018
Joint Center for Quantum Information and Computer Science
2017
Joint Quantum Institute
2017
Numerous theories extending beyond the standard model of particle physics predict existence bosons that could constitute dark matter (DM) permeating universe. In halo (SHM) galactic velocity distribution bosonic DM field defines a characteristic coherence time $\tau_c$. Until recently, laboratory experiments searching for fields have been in regime where measurement $T$ significantly exceeds $\tau_c$, so null results interpreted as constraints on coupling to particles with amplitude $\Phi_0$...
Abstract Ultralight bosons such as axion-like particles are viable candidates for dark matter. They can form stable, macroscopic field configurations in the of topological defects that could concentrate matter density into many distinct, compact spatial regions small compared with Galaxy but much larger than Earth. Here we report results search transient signals from domain walls by using global network optical magnetometers exotic (GNOME) physics searches. We data, consisting correlated...
Ultralight bosonic dark matter (UBDM) can be described by a classical wave-like field oscillating near the Compton frequency of bosons. If measurement scheme for direct detection UBDM interactions is sensitive to signature quadratic in field, then there near-zero-frequency (dc) component signal. Thus, detector with given finite bandwidth used search bosons frequencies many orders magnitude larger than its bandwidth. This opens possibility analogous Hanbury Brown and Twiss intensity...
The Global Network of Optical Magnetometers to search for Exotic physics (GNOME) is a network geographically separated, time-synchronized, optically pumped atomic magnetometers that being used correlated transient signals heralding exotic physics. GNOME sensitive nuclear- and electron-spin couplings fields from astrophysical sources such as compact dark-matter objects (for example, axion stars domain walls). Properties the sensors sensitivity, bandwidth, noise characteristics are studied in...
Abstract Numerous observations suggest that there exist undiscovered beyond‐the‐standard‐model particles and fields. Because of their unknown nature, these exotic fields could interact with standard model in many different ways assume a variety possible configurations. Here, an overview the global network optical magnetometers for physics searches (GNOME), ongoing experimental program designed to test wide range scenarios, is presented. The GNOME experiment utilizes worldwide shielded atomic...
We study the problem of parameter estimation in time series stemming from general stochastic processes, where outcomes may exhibit arbitrary temporal correlations. In particular, we address question how much Fisher information is lost if process compressed into a single histogram, known as empirical distribution. As show, answer nontrivial due to correlations between outcomes. derive practical formulas for resulting various scenarios, generic stationary processes discrete-time Markov chains...
Numerous observations suggest that there exist undiscovered beyond-the-Standard-Model particles and fields. Because of their unknown nature, these exotic fields could interact with Standard Model in many different ways assume a variety possible configurations. Here we present an overview the Global Network Optical Magnetometers for Exotic physics searches (GNOME), our ongoing experimental program designed to test wide range scenarios. The GNOME experiment utilizes worldwide network shielded...
We consider the estimation of parameters encoded in measurement record a continuously monitored quantum system jump unraveling. This unraveling picture corresponds to single-shot scenario, where information is gathered. Here, it generally difficult assess precision procedure via Fisher Information due intricate temporal correlations and memory effects. In this paper we provide full set solutions problem. First, for multi-channel renewal processes relate an underlying Markov chain derive...
The super Pioneering High Energy Nuclear Interaction eXperiment (sPHENIX) at the Relativistic Heavy Ion Collider (RHIC) will perform high precision measurements of jets and heavy flavor observables for a wide selection nuclear collision systems, elucidating microscopic nature strongly interacting matter ranging from nucleons to coupled quark-gluon plasma. A prototype sPHENIX calorimeter system was tested Fermilab Test Beam Facility as experiment T-1044 in spring 2016. electromagnetic (EMCal)...
Abstract Results are reported from the first full-scale search for transient signals exotic fields of astrophysical origin using data a newly constructed Earth-scale detector: Global Network Optical Magnetometers Exotic physics searches (GNOME). Data collected by GNOME consist correlated measurements optical atomic magnetometers located in laboratories all over world. searched patterns propagating through network consistent with composed ultralight bosons such as axion-like particles (ALPs)....
Abstract An experiment consisting of a network sensors can endow several advantages over an with single sensor: improved sensitivity, error corrections, spatial resolution, etc. However, there is often question how to optimally set up the yield best results. Here, we consider devices that measure vector field along given axis; namely for magnetometers in Global Network Optical Magnetometers Exotic physics searches (GNOME). We quantify well arranged, explore characteristics and examples ideal...
The outcome of continuously measuring a quantum system is string data whose intricate correlation properties reflect the underlying dynamics. In this paper we study role these in reconstructing probabilities finite sequences outcomes, so-called empirical distributions. Our approach cast terms generic instruments, and therefore encompass all types sequential continuous measurements. We also show how specializes to important cases, such as jumps. To quantify precise correlations, introduce...
Ultralight bosonic dark matter (UBDM) can be described by a classical wave-like field oscillating near the Compton frequency of bosons. If measurement scheme for direct detection UBDM interactions is sensitive to signature quadratic in field, then there near-zero-frequency (dc) component signal. Thus, detector with given finite bandwidth used search bosons frequencies many orders magnitude larger than its bandwidth. This opens possibility analogous Hanbury Brown and Twiss intensity...
We study the problem of parameter estimation in time series stemming from general stochastic processes, where outcomes may exhibit arbitrary temporal correlations. In particular, we address question how much Fisher information is lost if process compressed into a single histogram, known as empirical distribution. As show, answer non-trivial due to correlations between outcomes. derive practical formulas for resulting various scenarios, generic stationary processes discrete-time Markov chains...
The simplest cosmology --- the Friedmann-Robertson-Walker-Lema\^{i}tre (FRW) model describes a spatially homogeneous and isotropic universe where scale factor is only dynamical parameter. Here we consider how quantized electromagnetic fields become entangled with in toy version of FRW model. A system consisting photon, source, detector described such universe, find that detection redshifted photon by constrains possible superpositions. Thus, measuring redshift equivalent to weak measurement...
The Global Network of Optical Magnetometers for Exotic physics searches (GNOME) conducts an experimental search certain forms dark matter based on their spatiotemporal signatures imprinted a global array synchronized atomic magnetometers. experiment described here looks gradient coupling axion-like particles (ALPs) with proton spins as signature locally dense objects such domain walls. In this work, stochastic optimization machine learning is proposed use in ALP walls GNOME data. validity...