Quantum-Enhanced Two-Photon Spectroscopy Using Two-mode Squeezed LightWe investigate the prospects of using two-mode intensity squeezed twin-beams, generated in Rb vapor, to improve the sensitivity of spectroscopic measurements by engaging two-photon Raman transitions.…Nikunjkumar Prajapati, Ziqi Niu, Irina Novikova·Dec 26, 2020SaveLearn
Searching optimal conditions for quantum gates application with the new 3-body F\"orster resonances in Rb and Cs Rydberg atomsThree body resonant interactions between Rydberg atoms are considered in order to perform few-body quantum gates. So far, the resonances found in cesium or rubidium atoms relied on an adjacent…K. -L. Pham, S. Lepoutre, P. Pillet et al.·Dec 23, 2020SaveLearn
Two-photon Above Threshold Ionization of HeliumMultiphoton ionization provides a clear window into the nature of electron correlations in the helium atom. In the present study, the final state energy range extends up to the region near the N=2…Yimeng Wang, Chris H. Greene·Dec 23, 2020SaveLearn
Magnetic Moment Tensor Potentials for collinear spin-polarized materials reproduce different magnetic states of bcc FeWe present the magnetic Moment Tensor Potentials (mMTPs), a class of machine-learning interatomic potentials, accurately reproducing both vibrational and magnetic degrees of freedom as provided,…Ivan Novikov, Blazej Grabowski, Fritz Kormann et al.·Dec 23, 2020SaveLearn
Spin noise spectroscopy of a noise-squeezed atomic stateSpin noise spectroscopy is emerging as a powerful technique for studying the dynamics of various spin systems also beyond their thermal equilibrium and linear response. Here, we study spin…V. Guarrera, R. Gartman, G. Bevilacqua et al.·Dec 23, 2020SaveLearn
Angular correlations in two-photon spectroscopy of hydrogenIn the present paper, we consider nonresonant corrections to 2s-ns/nd transition frequencies in hydrogen for the experiments based on two-photon spectroscopy. A detailed study of angular…A. Anikin, T. Zalialiutdinov, D. Solovyev·Dec 23, 2020SaveLearn
Relativistic corrections to the thermal interaction of bound particlesThis paper discusses relativistic corrections to the thermal Coulomb potential for simple atomic systems. The theoretical description of the revealed thermal corrections is carried out within the…D. Solovyev, T. Zalialiutdinov, A. Anikin·Dec 22, 2020SaveLearn
Orbital Variational Adiabatic Hyperspherical Method Applied to Bose-Einstein CondensatesA variational basis set motivated by mean-field theory is utilized to describe the Bose-Einstein condensate within the adiabatic hyperspherical coordinate framework. The simplest single-orbital…Hyunwoo Lee, Chris H. Greene·Dec 22, 2020SaveLearn
Low-lying electron energy levels in three-particle electron-muon ions (μ e Li), (μ e Be), (μ e B)The electron Lamb shift (2P-2S) and the energy interval (2S-1S) in muon-electron ions of lithium, beryllium, and boron have been calculated within the framework of the perturbation theory method…A. E. Dorokhov, V. I. Korobov, A. P. Martynenko et al.·Dec 21, 2020SaveLearn
Diffusive-like Redistribution in State-changing Collisions between Rydberg Atoms and Ground State AtomsWe report on the study of state-changing collisions between Rydberg atoms and ground state atoms. We employ high-resolution momentum spectroscopy to identify the final states. In contrast to previous…Philipp Geppert, Max Althön, Daniel Fichtner et al.·Dec 21, 2020SaveLearn
Finite temperature spectrum at the symmetry-breaking linear-zigzag transitionWe investigate the normal mode spectrum of a trapped ion chain at the symmetry-breaking linear to zigzag transition and at finite temperatures. For this purpose we modulate the amplitude of the…Jan Kiethe, Lars Timm, Haggai Landa et al.·Dec 21, 2020SaveLearn
Anisotropic Polarizability of Ultracold Ground-state 23Na87Rb MoleculesWe report measurements of the ac polarizabilities of ultracold ground-state 23Na87Rb molecules. While the polarizability of the ground rotational state J = 0 is isotropic, that of…Junyu Lin, Junyu He, Xin Ye et al.·Dec 21, 2020SaveLearn
Coherent control of an Helium-Ion ensembleAttosecond pulses can ionize atoms in a coherent process. Since the emerging fragments are entangled, however, each preserves only a fraction of the initial coherence, thus limiting the chance of…Saad Mehmood, Eva Lindroth, Luca Argenti·Dec 20, 2020SaveLearn
Molecular Collisions: from Near-cold to Ultra-coldIn the past two decades, the revolutionary technologies of creating cold and ultracold molecules have provided cutting-edge experiments for studying the fundamental phenomena of collision physics. To…Yang Liu, Le Luo·Dec 18, 2020SaveLearn
Stabilization method with Relativistic Configuration-interaction applied to two-electron resonancesWe applied a relativistic configuration-interaction (CI) framework to the stabilization method as an approach for obtaining the autoionization resonance structure of heliumlike ions. In this method,…P. Amaro, J. P. Santos, S. Bhattacharyya et al.·Dec 18, 2020SaveLearn
A general approach to state-dependent optical tweezer traps for polar moleculesState-dependent optical tweezers can be used to trap a pair of molecules with a separation much smaller than the wavelength of the trapping light, greatly enhancing the dipole-dipole interaction…L. Caldwell, M. R. Tarbutt·Dec 18, 2020SaveLearn
Motional heating of spatially extended ion crystalsWe study heating of motional modes of a single ion and of extended ion crystals trapped in a linear radio frequency (rf) Paul trap with a precision of n ≈ 0.2 phonons…D. Kalincev, L. S. Dreissen, A. P. Kulosa et al.·Dec 18, 2020SaveLearn
Complete quantum coherent control of ultracold molecular collisionsWe show that quantum interference-based coherent control is a highly efficient tool for tuning ultracold molecular collision dynamics, and is free from the limitations of commonly used methods that…Adrien Devolder, Paul Brumer, Timur V. Tscherbul·Dec 18, 2020SaveLearn
Storage and release of subradiant excitations in a dense atomic cloudWe report the observation of subradiance in dense ensembles of cold 87Rb atoms operating near Dicke's regime of a large number of atoms in a volume with dimensions smaller than the transition…Giovanni Ferioli, Antoine Glicenstein, Loic Henriet et al.·Dec 18, 2020SaveLearn
In situ sub-50 attosecond active stabilization of the delay between infrared and extreme ultraviolet light pulsesThe blooming of attosecond science (1 as = 10-18 s) has raised the need to exquisitely control the delay between two ultrashort light pulses, one of them being intense and in the visible…Martin Luttmann, David Bresteau, Jean-François Hergott et al.·Dec 17, 2020SaveLearn
Characterizing the temperature dependence of Fano-Feshbach resonances of Ultracold Polarized ThuliumRecent studies demonstrated anomalous temperature shifts for some Fano-Feshbach resonances of thulium atoms. These anomalies were explained by the variation in light intensity in the optical dipole…V. A Khlebnikov, V. V Tsyganok, D. A. Pershin et al.·Dec 16, 2020SaveLearn
Searching for alignment-to-orientation conversion in the ground state of atomic Cs with circularly polarized laser probeIn this study we explored the possibilities for observing the angular momentum alignment-to-orientation conversion (AOC) in the ground state of various alkali metals: K, Rb, Cs. For theoretical…Arturs Mozers, Laima Busaite, Dace Osite et al.·Dec 16, 2020SaveLearn
High-Resolution Imaging of Cold Atoms through a Multimode FiberWe developed an ultra-compact high-resolution imaging system for cold atoms. Its only in-vacuum element is a multimode optical fiber with a diameter of 230\,μm, which simultaneously collects…Nicolas Vitrant, Sébastien Garcia, Kilian Müller et al.·Dec 16, 2020SaveLearn
Coherent optical creation of a single moleculeWe report coherent association of atoms into a single weakly bound NaCs molecule in an optical tweezer through an optical Raman transition. The Raman technique uses a deeply bound electronic excited…Yichao Yu, Kenneth Wang, Jonathan D. Hood et al.·Dec 16, 2020SaveLearn
P,T-odd effects for RaOH molecule in the excited vibrational stateTriatomic molecule RaOH combines the advantages of laser-coolability and the spectrum with close opposite-parity doublets. This makes it a promising candidate for experimental study of the…Anna Zakharova, Alexander Petrov·Dec 15, 2020SaveLearn