Andrei Derevianko
YOU?
Author Swipe
View article: Erratum: “Tutorial on running median subtraction filter with application to searches for exotic field transients in multi-messenger astronomy” [AIP Adv. 15, 055205 (2025)]
Erratum: “Tutorial on running median subtraction filter with application to searches for exotic field transients in multi-messenger astronomy” [AIP Adv. 15, 055205 (2025)] Open
View article: Theory of Internal Conversion of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Th</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>229</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math> Nuclear Isomer in Solid-State Hosts
Theory of Internal Conversion of the Nuclear Isomer in Solid-State Hosts Open
Laser excitation of ^{229}Th nuclei in doped wide band gap crystals has been demonstrated recently, opening the possibility of developing ultrastable solid-state clocks and sensitive searches for new physics. We develop a quantitative theo…
View article: $^{229}$Th Nuclear Spectroscopy in an Opaque Material: Laser-Based Conversion Electron Mössbauer Spectroscopy of $^{229}$ThO$_2$
$^{229}$Th Nuclear Spectroscopy in an Opaque Material: Laser-Based Conversion Electron Mössbauer Spectroscopy of $^{229}$ThO$_2$ Open
Here, we report the first demonstration of laser-induced conversion electron Mössbauer spectroscopy of the $^{229}$Th nuclear isomeric state, which provides the ability to probe the nuclear transition in a material that is opaque to light …
View article: Photoinduced quenching of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Th</mml:mi><mml:mprescripts/><mml:none/><mml:mn>229</mml:mn></mml:mmultiscripts></mml:math> isomer in a solid-state host
Photoinduced quenching of the isomer in a solid-state host Open
The population dynamics of the Th
View article: Tutorial on running median subtraction filter with application to searches for exotic field transients in multi-messenger astronomy
Tutorial on running median subtraction filter with application to searches for exotic field transients in multi-messenger astronomy Open
Running Median Subtraction Filter (RMSF) is a robust statistical tool for removing slowly varying baselines in data streams containing transients (short-duration signals) of interest. In this work, we explore the RMSF performance and prope…
View article: Host-dependent frequency offsets in $^{229}$Th nuclear clockwork
Host-dependent frequency offsets in $^{229}$Th nuclear clockwork Open
Recent advances in laser excitation of the low-energy nuclear isomer transition in $^{229}$Th have opened avenues for developing nuclear clocks, a novel quantum technology with exceptional performance and sensitivity to exotic physics. Her…
View article: Design of new thorium nuclear clock materials based on polyatomic ions
Design of new thorium nuclear clock materials based on polyatomic ions Open
Compounds of polyatomic anions are investigated theoretically as hosts for thorium in nuclear clock devices. The 229Th nucleus has an excited state at 8.355 eV which can be reached using a VUV laser as demonstrated in recent experiments. I…
View article: Proposal and theoretical investigation of 229Th-doped nonlinear optical crystals for compact solid-state clocks
Proposal and theoretical investigation of 229Th-doped nonlinear optical crystals for compact solid-state clocks Open
The recent laser excitation of the 229Th isomeric transition in a solid-state host opens the door for a portable solid-state nuclear optical clock. However, at present, the vacuum-ultraviolet laser systems required for clock operation are …
View article: Design of new thorium nuclear clock materials based on polyatomic ions
Design of new thorium nuclear clock materials based on polyatomic ions Open
Compounds of polyatomic anions are investigated theoretically as hosts for thorium in nuclear clock devices.
View article: Institutional transformation of the migration management system in Ukraine: from centralized approach to inter-agency coordination
Institutional transformation of the migration management system in Ukraine: from centralized approach to inter-agency coordination Open
View article: Тhe system of subjects for state migration policy formation in Ukraine: an institutional dimension
Тhe system of subjects for state migration policy formation in Ukraine: an institutional dimension Open
View article: 229ThF4 thin films for solid-state nuclear clocks
229ThF4 thin films for solid-state nuclear clocks Open
After nearly 50 years of searching, the vacuum ultraviolet 229Th nuclear isomeric transition has recently been directly laser excited1,2 and measured with high spectroscopic precision3. Nuclear clocks based…
View article: Photo-Induced Quenching of the 229Th Isomer in a Solid-State Host
Photo-Induced Quenching of the 229Th Isomer in a Solid-State Host Open
The population dynamics of the 229Th isomeric state is studied in a solid-state host under laser illumination. A photoquenching process is observed, where off-resonant vacuum-ultraviolet (VUV) radiation leads to relaxation of the isomeric …
View article: Theory of internal conversion of the thorium-229 nuclear isomer in solid-state hosts
Theory of internal conversion of the thorium-229 nuclear isomer in solid-state hosts Open
Laser excitation of thorium-229 nuclei in doped wide bandgap crystals has been demonstrated recently, opening the possibility of developing ultrastable solid-state clocks and sensitive searches for new physics. We develop a quantitative th…
View article: Multi-messenger astronomy in the new physics modality with GPS constellation
Multi-messenger astronomy in the new physics modality with GPS constellation Open
We explore a novel, exotic physics, modality in multi-messenger astronomy. We are interested in exotic fields emitted by the mergers and their direct detection with a network of atomic clocks. We specifically focus on the rubidium clocks o…
View article: 229Th-doped nonlinear optical crystals for compact solid-state clocks
229Th-doped nonlinear optical crystals for compact solid-state clocks Open
The recent laser excitation of the 229Th isomeric transition in a solid-state host opens the door for a portable solid-state nuclear optical clock. However, at present the vacuum-ultraviolet laser systems required for clock operation are n…
View article: $^{229}\mathrm{ThF}_4$ thin films for solid-state nuclear clocks
$^{229}\mathrm{ThF}_4$ thin films for solid-state nuclear clocks Open
After nearly fifty years of searching, the vacuum ultraviolet $^{229}$Th nuclear isomeric transition has recently been directly laser excited [1,2] and measured with high spectroscopic precision [3]. Nuclear clocks based on this transition…
View article: Tutorial on running median subtraction filter with application to searches for exotic field transients in multi-messenger astronomy
Tutorial on running median subtraction filter with application to searches for exotic field transients in multi-messenger astronomy Open
Running Median Subtraction Filter (RMSF) is a robust statistical tool for removing slowly varying baselines in data streams containing transients (short-duration signals) of interest. In this work, we explore the RMSF performance and prope…
View article: Laser Excitation of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Th</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>229</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math> Nuclear Isomeric Transition in a Solid-State Host
Laser Excitation of the Nuclear Isomeric Transition in a Solid-State Host Open
LiSrAlF_{6} crystals doped with ^{229}Th are used in a laser-based search for the nuclear isomeric transition. Two spectroscopic features near the nuclear transition energy are observed. The first is a broad excitation feature that produce…
View article: Terrestrial very-long-baseline atom interferometry: Workshop summary
Terrestrial very-long-baseline atom interferometry: Workshop summary Open
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 the world to discuss the exciting developments in large-scale atom i…
View article: Laser excitation of the $^{229}$Th nuclear isomeric transition in a solid-state host
Laser excitation of the $^{229}$Th nuclear isomeric transition in a solid-state host Open
LiSrAlF$_6$ crystals doped with $^{229}$Th are used in a laser-based search for the nuclear isomeric transition. Two spectroscopic features near the nuclear transition energy are observed. The first is a broad excitation feature that produ…
View article: Multi-messenger astronomy in the new physics modality with GPS constellation
Multi-messenger astronomy in the new physics modality with GPS constellation Open
We explore a novel, exotic physics, modality in multi-messenger astronomy. We are interested in exotic fields emitted by the mergers and their direct detection with a network of atomic clocks. We specifically focus on the rubidium clocks o…
View article: Quantum Networks for High Energy Physics (HEP)
Quantum Networks for High Energy Physics (HEP) Open
View article: Feasibility of extracting the proton weak charge from quantum-control measurements of atomic parity violation on the $2s-3s$ or $2s-4s$ transition in hydrogen
Feasibility of extracting the proton weak charge from quantum-control measurements of atomic parity violation on the $2s-3s$ or $2s-4s$ transition in hydrogen Open
We explore the feasibility of extracting electroweak observables from a measurement of atomic parity violation in hydrogen. Our proposed quantum-control scheme focuses on the $2s-3s$ or $2s-4s$ transitions in hydrogen. This work is motivat…
View article: Eliminating qubit type cross-talk in the $\textit{omg}$ protocol
Eliminating qubit type cross-talk in the $\textit{omg}$ protocol Open
The $\textit{omg}$ protocol is a promising paradigm that uses multiple, application-specific qubit subspaces within the Hilbert space of each single atom during quantum information processing. A key assumption for $\textit{omg}$ operation …
View article: Terrestrial Very-Long-Baseline Atom Interferometry: Workshop Summary
Terrestrial Very-Long-Baseline Atom Interferometry: Workshop Summary Open
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 the world to discuss the exciting developments in large-scale atom i…
View article: Nuclear-spin-dependent corrections to the transition polarizability in cesium
Nuclear-spin-dependent corrections to the transition polarizability in cesium Open
The Stark-interference technique is commonly used to amplify the feeble parity-violating signal in atomic experiments. As a result, interpretation of these experiments in terms of electroweak observables requires knowledge of the Stark-ind…
View article: Reevaluation of Stark-induced transition polarizabilities in cesium
Reevaluation of Stark-induced transition polarizabilities in cesium Open
Extracting electroweak observables from experiments on atomic parity violation (APV) using the Stark interference technique requires accurate knowledge of transition polarizabilities. In cesium, the focus of our paper, the $6S_{1/2}\righta…
View article: Quantum gravity unchained: Atomic sensors as exotic field telescopes in multi-messenger astronomy
Quantum gravity unchained: Atomic sensors as exotic field telescopes in multi-messenger astronomy Open
We propose a novel, exotic physics, modality in multi-messenger astronomy. We are interested in a DIRECT detection of exotic fields emitted by the mergers. This approach must be contrasted with the INDIRECT detection strategies, e.g., base…
View article: What can a GNOME do? Search targets for the Global Network of Optical Magnetometers for Exotic physics searches
What can a GNOME do? Search targets for the Global Network of Optical Magnetometers for Exotic physics searches Open
Numerous observations suggest that there exist undiscovered beyond-the-Standard-Model particles and fields. Because of their unknown nature, these exotic particles and fields could interact with Standard Model particles in many different w…