A5040926108- Atomic and Subatomic Physics Research
- Dark Matter and Cosmic Phenomena
- Advanced Frequency and Time Standards
- Cold Atom Physics and Bose-Einstein Condensates
- Quantum, superfluid, helium dynamics
- Quantum and electron transport phenomena
- Particle physics theoretical and experimental studies
- Education, Law, and Society
- Geophysics and Sensor Technology
- Radioactive Decay and Measurement Techniques
- Mechanical and Optical Resonators
- Quantum and Classical Electrodynamics
- Mycobacterium research and diagnosis
- Relativity and Gravitational Theory
- Digital Transformation in Law
- Pulsars and Gravitational Waves Research
- Nuclear physics research studies
- Lung Cancer Diagnosis and Treatment
- Atmospheric Ozone and Climate
- History and Theory of Mathematics
- Advanced NMR Techniques and Applications
- Physics of Superconductivity and Magnetism
- Tracheal and airway disorders
- Quantum optics and atomic interactions
- Geophysics and Gravity Measurements
Johannes Gutenberg University Mainz
2018-2024
GSI Helmholtz Centre for Heavy Ion Research
2021-2023
Helmholtz Institute Mainz
2018-2023
Ministry of Internal Affairs of the Russian Federation
2022
Moscow University of the Ministry of Internal Affairs of Russia
2022
Ludwig-Maximilians-Universität München
2018
Hebrew University of Jerusalem
2015
The exchange of spin-0 or spin-1 bosons between fermions spin-polarized macroscopic objects gives rise to various spin-dependent potentials. We derive the coordinate-space nonrelativistic potentials induced by such bosons, including contact terms that can play an important role in atomic-scale phenomena, and correct for errors omissions literature. summarize properties their relevance types experiments. These underpin interpretation experiments search new spectroscopy, torsion-pendulum...
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,...
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...
Peik and Tamm [Europhys. Lett. 61, 181 (2003)] proposed a nuclear clock based on the isomeric transition between ground state first excited of thorium-229. This was recognized as potentially sensitive probe possible temporal variation fine-structure constant, $\alpha$. The sensitivity to such can be determined from measurements mean-square charge radius quadrupole moment different isomers. However, current are yet achieve an accuracy high enough resolve non-zero sensitivity. Here we...
Advanced quantum sensor enables a search for spin physics beyond the standard model.
Searches for the axion and axionlike particles may hold key to unlocking some of deepest puzzles about our Universe, such as dark matter energy. Here, we use recently demonstrated spin-based amplifier constrain hypothetical within well-motivated "axion window" (10 μeV-1 meV) through searching an exotic dipole-dipole interaction between polarized electron neutron spins. The ingredient is hyperpolarized long-lived ^{129}Xe nuclear spins pseudomagnetic field generated by interaction. Using a...
Heretofore undiscovered spin-0 or spin-1 bosons can mediate exotic spin-dependent interactions between standard model particles. Here, we carry out the first search for semileptonic matter and antimatter. We compare theoretical calculations spectroscopic measurements of hyperfine structure antiprotonic helium to constrain spin- velocity-dependent electrons antiprotons.
An experimental test at the intersection of quantum physics and general relativity is proposed: measurement relativistic frame dragging geodetic precession using intrinsic spin electrons. The behavior in spacetime dragged warped by a massive rotating body an experimentally open question, hence results such could have important theoretical consequences. Such possible mm-scale ferromagnetic gyroscopes orbit around Earth. Under conditions where rotational angular momentum ferromagnet...
The existence of exotic spin-dependent forces may shine light on new physics beyond the standard model. We utilize two iron shielded SmCo_{5} electron-spin sources and optically pumped magnetometers to search for long-range spin-spin velocity-dependent force. orientations spin are optimized such that force is enhanced common-mode noise effectively subtracted. set direct limit proton-electron interaction in range from 1 cm km. Our experiment represents more than 10 orders magnitude...
A ferromagnetic gyroscope (FG) is a ferromagnet whose angular momentum dominated by electron spin polarization and that will precess under the action of an external torque, such as due to magnetic field. Here we model analyze FG dynamics sensitivity, focusing on practical schemes for experimental realization. In case freely floating FG, transition from libration in relatively high externally applied fields, those precession at low fields. Measurement frequency enables situ measurement field...
Hitherto unknown elementary particles can be searched for with atomic spectroscopy. We conduct such a search using potential that results from the longitudinal polarization of pseudovector particle. show potential, inversely proportional to boson's mass squared, $V \propto 1/M^2$, stay finite at $M \to 0$ if theory is renormalizable. also look pseudoscalar boson, which induces contact spin-dependent does not contribute new forces in experiments macroscopic objects, but may seen extract...
Parity (P) and time-reversal (T) violating effects are enhanced a million times in neutron reactions near $p$-wave nuclear compound resonances. Planning interpretation of corresponding experiments require values the matrix elements T,P-violating forces between states. We calculate root-mean-square ratio P-violating interactions using statistical theory based on properties chaotic present results terms fundamental parameters five different forms: constants contact interaction, meson exchange...
High accuracy measurements in M\"ossbauer transitions open up the possibility to use them search for temporal and spatial variations of fine structure constant $\ensuremath{\alpha}$, quark mass ${m}_{q}$, dark matter field which may lead $\ensuremath{\alpha}$ ${m}_{q}$. We calculate sensitivity nuclear have high variation ${m}_{q}$ strong interaction scale ${\mathrm{\ensuremath{\Lambda}}}_{\mathrm{QCD}}$ atomic optical clocks are not sensitive. The enhancement factors $K$, defined by...
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...
Novel interactions beyond the four known fundamental forces in nature (electromagnetic, gravitational, strong and weak interactions), may arise due to "new physics" standard model, manifesting as a "fifth force". This review is focused on spin-dependent fifth mediated by exotic bosons such spin-0 axions axionlike particles spin-1 Z' bosons, dark photons, or paraphotons. Many of these are candidates explain matter energy, their violate symmetries. Spin-dependent between fermions exchange have...
The article deals with foreign experience of digitalization preliminary investigation. Russian Federation is dominated by conservative views law enforcers and legislators on this issue. Currently there are only small steps towards the digitalisation investigation in our country. At same time it has been established that introduction various information systems automated workstations into practice, which was supposed to create a unified system network wide coverage, not happened due lack...
Movies are mostly viewed for entertainment. Mixing entertainment and physics gets students excited as we look at a famous movie scene from different point of view. The following is link to fragment the 2010 motion picture “Inception”: http://www.youtube.com/watch?v=q3tBBhYJeAw. problem, based on images in facing mirrors that movie, was given high school studying geometric objects.
Searches for the axion and axionlike particles may hold key to unlocking some of deepest puzzles about our universe, such as dark matter energy. Here we use recently demonstrated spin-based amplifier constrain hypothetical within well-motivated ``axion window'' (1 $μ$eV-1 meV) through searching an exotic spin-spin interaction between polarized electron neutron spins. The ingredient is hyperpolarized long-lived $^{129}$Xe nuclear spins pseudomagnetic field generated by interaction. Using a...
The existence of exotic spin-dependent forces may shine light on new physics beyond the Standard Model. We utilize two iron shielded SmCo$_5$ electron-spin sources and optically pumped magnetometers to search for long-range spin-spin-velocity-dependent force. orientations spin are optimized such that force is enhanced common-mode noise effectively subtracted. set direct limit proton-electron interaction in range from 1\,cm 1\,km. Our experiment represents more than ten orders magnitude...
The article deals with issues related to the procedural independence of investigator in criminal proceedings, as well its relationship powers investigator. Analyzing provisions Code Criminal Procedure Russian Federation and Socialist Republic Vietnam, authors come conclusion that pre-trial proceedings a case Vietnam is significantly limited. are convinced further development, Vietnamese legislator, within limits what permissible, will expand by granting him additional powers.