Velocity-comb modulation transfer spectroscopySub-Doppler laser spectroscopy is a crucial technique for laser frequency stabilization, playing a significant role in atomic physics, precision measurement, and quantum communication. However,…Xiaolei Guan, Zheng Xiao, Zijie Liu et al.·Jan 27, 2025SaveLearn
Polynomial-time-scaling quantum dynamics with time-dependent quantum Monte CarloHere we study the dynamics of many-body quantum systems using time dependent quantum Monte Carlo method where the evolution is described by ensembles of particles and guide waves. The…Ivan P. Christov·Jan 27, 2025SaveLearn
Molecular dynamics with time dependent quantum Monte CarloIn this paper we propose an ab initio method to solve quantum many-body problems of molecular dynamics where both the electronic and the nuclear degrees are represented by ensembles of trajectories…Ivan P. Christov·Jan 27, 2025SaveLearn
Laser cooled 137BaF molecules for measuring nuclear-spin-dependent parity violationWe demonstrate optical cycling and transverse laser cooling of a beam of fermionic 137BaF molecules. Their high masses and nuclear spins make these molecules sensitive probes for parity violation and…Felix Kogel, Tatsam Garg, Marian Rockenhäuser et al.·Jan 27, 2025SaveLearn
Hyperfine structure and collisions in three-photon Rydberg electromagnetically induced transparencyMulti-photon electromagnetically-induced transparency (EIT) of atomic vapors involves several intermediate atomic levels. The sub-structure of these levels and their collisional interactions can…Alisher Duspayev, Georg Raithel·Jan 27, 2025SaveLearn
Optical clock based on two-photon spectroscopy of the nuclear transition in ion 229Th in a monochromatic fieldFor the isotope 229Th we investigate the possibility of two-photon laser spectroscopy of the nuclear clock transition (148.38 nm) using intense monochromatic laser field at twice the wavelength…V. I. Yudin, A. V. Taichenachev, O. N. Prudnikov et al.·Jan 26, 2025SaveLearn
Emission from driven atoms in collective strong coupling with an optical cavityWe study self sustained cavity emission from driven atoms in collective strong coupling. The cavity emission occurs over a wide range of atom-cavity and drive laser detunings without any external…V. R. Thakar, Arun Bahuleyan, V. I. Gokul et al.·Jan 24, 2025SaveLearn
Anomalies in the rotational spectra of 86Sr ULRRM dimersAnomalies in the rotational structure of 86Sr 3S1 dimer ultralong-range Rydberg molecules (ULRRMs) created in a cold strontium gas by two-photon excitation via the intermediate 5s5p~3P1…C. Wang, Y. Lu, A. Li et al.·Jan 24, 2025SaveLearn
Precision determination of the excited-state hyperfine splitting of Cadmium ionsPrecision determination of the hyperfine splitting of cadmium ions is essential to study space-time variation of fundamental physical constants and isotope shifts. In this work, we present the…Ying Zheng, Yanmei Yu, Yiting Chen et al.·Jan 23, 2025SaveLearn
A neural network approach for line detection in complex atomic emission spectra measured by high-resolution Fourier transform spectroscopyThe atomic spectra and structure of the open d- and f-shell elements are extremely complex, where tens of thousands of transitions between fine structure energy levels can be observed as spectral…M. Ding, S. Z. J. Lim, X. Yu et al.·Jan 21, 2025SaveLearn
Noise budget of a trapped on chip cold atom Rubidium 87 clockIn this paper, we present a realisation of an on chip atomic clock using a cold cloud of Rubidium 87 atoms. This clock is based on a Ramsey interferometer with a Ramsey time around 600 ms. This is…M. Dupont-Nivet, B. Wirtschafter, S. Hello et al.·Jan 21, 2025SaveLearn
Observation of Subnatural-Linewidth Biphotons In a Two-Level Atomic EnsembleBiphotons and single photons with narrow bandwidths and long coherence times are essential to the realization of long-distance quantum communication (LDQC) and linear optical quantum computing…Jyun-Kai Lin, Tzu-Hsiang Chien, Chin-Te Wu et al.·Jan 21, 2025SaveLearn
Anomalous suppression of spin-exchange relaxation in alignment signals in cesium in ultra-weak magnetic fieldsThe results of a study of the dynamics of atomic moments alignment in cesium under optical pumping by linearly polarized resonant light in ultra-weak magnetic field are presented. It is shown that…Mikhail V. Petrenko, Anton K. Vershovskii·Jan 20, 2025SaveLearn
Doppler-free Selective Reflection spectroscopy of the 6s 2S1/2 7p 2P3/2 transition of Cesium using a nanofabricated vapor cellSelective Reflection (SR) spectroscopy of the 6s 2S1/2 → 7p 2P3/2 electric dipole transition of Cesium (λ~=~456 nm) is performed for the first time using a…Armen Sargsyan, Rodolphe Momier, David Sarkisyan·Jan 20, 2025SaveLearn
Low-energy photoelectron structures for arbitrary ellipticity of a strong laser fieldPrevious attoclock experiments measuring the photoelectron momentum distribution (PMD) via strong-field ionization in an elliptically polarized laser field have shown anomalously large offset angles…Q. Z. Lv, M. Klaiber, P. -L. He et al.·Jan 19, 2025SaveLearn
Molecular laser cooling using serrodynes: Implementation, characterization and prospectsAn important effort is currently underway to extend optical cycling and laser cooling to more molecular species. Significant challenges arise in particular when multiple nuclear spins give rise to…Felix Kogel, Tatsam Garg, Marian Rockenhäuser et al.·Jan 18, 2025SaveLearn
Determination of Land\'e gJ factor and Zeeman coefficients in ground-state 171Yb+ and their applications to quantum frequency standardsWe report the determination of the Land\'e gJ factor and Zeeman coefficients for the ground-state of 171Yb+, relevant to microwave quantum frequency standards (QFSs). The gJ factor is…Jize Han, Benquan Lu, Yanmei Yu et al.·Jan 17, 2025SaveLearn
High-accuracy multi-ion spectroscopy with mixed-species Coulomb crystalsMulti-ion optical clocks offer the possibility of overcoming the low signal-to-noise ratio of single-ion clocks, while still providing low systematic uncertainties. We present simultaneous…J. Keller, H. N. Hausser, I. M. Richter et al.·Jan 16, 2025SaveLearn
On the number of atomic configurations in hot plasmasWe propose approximate and accurate formulas for the number of electron configurations in hot plasmas. Such a quantity is an ingredient of algorithms devoted to the generation of configurations or…Jean-Christophe Pain, Daniel Aberg, Brian G. Wilson·Jan 16, 2025SaveLearn
Anomalous nuclear effects on ion charge state distribution in helium gasThe influence of isotope differences on ion charge state yield ratios has never been studied in detail, having been considered negligible. However, we have observed anomalous ion charge state…Sota Kimura, Michiharu Wada, Hiromitsu Haba et al.·Jan 16, 2025SaveLearn
A High-Power Clock Laser Spectrally Tailored for High-Fidelity Quantum State EngineeringHighly frequency-stable lasers are a ubiquitous tool for optical frequency metrology, precision interferometry, and quantum information science. While making a universally applicable laser is…Lingfeng Yan, Stefan Lannig, William R. Milner et al.·Jan 16, 2025SaveLearn
Lifetime measurement of the 5s5p 1P1 state in strontiumWe present a direct lifetime measurement of the 5s5p~1P1 state of strontium using time-correlated single-photon counting of laser induced fluorescence in a hot atomic beam. To achieve fast…Ivana Puljić, Ana Cipriš, Damir Aumiler et al.·Jan 16, 2025SaveLearn
Precision magnetometry at cryogenic temperatures with gaseous 3He NMR probesWe report on compact, gaseous 3He NMR probes for precision magnetometry of magnetic fields B > 0.1 T in the temperature range from ambient temperatures down to 4 Kelvin. The gas is polarized at…P. Blümler, M. Fertl, H. -J. Grafe et al.·Jan 15, 2025SaveLearn
Towards Precision Spectroscopy of Antiprotonic Atoms for Probing Strong-field QEDPAX (antiProtonic Atom X-ray spectroscopy) is a new experiment with the aim to test strong-field quantum electrodynamics (QED) effects by performing high-precision x-ray spectroscopy of antiprotonic…Gonçalo Baptista, Shikha Rathi, Michael Roosa et al.·Jan 15, 2025SaveLearn
Background reduction in 136Xe double beta decay experiments through direct barium ion detectionTagging barium ions in double beta decay experiments involving 136Xe offers a promising pathway to achieving an almost background-free environment, which is essential for addressing key…Álvaro Peralta Conde·Jan 15, 2025SaveLearn