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The properties of the electronic ground state of the polar and paramagnetic europium-$S$-state-atom molecules have been investigated. Ab initio techniques have been applied to compute the potential energy curves for the…

Atomic Physics · Physics 2014-09-04 Michał Tomza

In this study, we investigate the structure of the polar alkali-Strontium diatomic molecules as possible candidates for the realization of samples of new species of ultracold polar molecules. Using a quantum chemistry approach based on…

Atomic and Molecular Clusters · Physics 2015-05-19 Romain Guérout , Mireille Aymar , Olivier Dulieu

Ultracold diatomic molecules find application in quantum studies ranging from controlled chemistry and precision measurement physics to quantum many-body simulation and potentially quantum computing. Accurate knowledge of molecular…

Atomic Physics · Physics 2024-05-14 Hela Ladjimi , Michał Tomza

We propose high-spin $\Sigma$-state polar molecules assembled from ultracold atoms to probe charge-parity violating physics beyond the Standard Model. We identify YbCr as a prime candidate to search for the electric dipole moment of the…

Quantum Gases · Physics 2026-03-16 Alessio Ciamei , Adam Koza , Marcin Gronowski , Michał Tomza

We theoretically investigate the properties of highly polar diatomic molecules containing $^2S$-state transition-metal atoms. We calculate potential energy curves, permanent electric dipole moments, spectroscopic constants, and leading…

Atomic Physics · Physics 2021-02-16 Michał Śmiałkowski , Michał Tomza

We report calculations of Born-Oppenheimer potential energy curves of the chromium-rubidium heteronuclear molecule 52Cr-87Rb, and the long-range dispersion coefficient for the interaction between ground state Cr and Rb atoms. Our calculated…

Atomic Physics · Physics 2015-05-19 Z. Pavlovic , H. R. Sadeghpour , R. Cote , B. O. Roos

Electronic open-shell ground-state properties of selected alkali-metal (AM) - alkaline-earth-metal (AEM) polar molecules are investigated. We determine potential energy curves of the 2{\Sigma}+ ground state at the coupled-cluster singles…

Chemical Physics · Physics 2015-06-19 Geetha Gopakumar , Minori Abe , Masahiko Hada , Masatoshi Kajita

This paper deals with the electronic structure of RbSr, a molecule possessing both a permanent magnetic and electric dipole moment in its own frame allowing its manipulation with external fields. Two complementary ab-initio approaches are…

Chemical Physics · Physics 2014-07-16 Piotr S. Żuchowski , Romain Guerout , Olivier Dulieu

The Ca$^+$, Sr$^+$, Ba$^+$, and Yb$^+$ ions immersed in an ultracold gas of the Cr atoms are proposed as experimentally feasible heteronuclear systems in which ion-atom interactions at ultralow temperatures can be controlled with…

Atomic Physics · Physics 2015-12-15 Michał Tomza

State-of-the-art {\em ab initio} techniques have been applied to compute the potential energy curves for the SrYb molecule in the Born-Oppenheimer approximation for the ground state and first fifteen excited singlet and triplet states…

State-of-the-art {\em ab initio} techniques have been applied to compute the potential energy curves of the (BaRb)$^+$ molecular ion in the Born-Oppenheimer approximation. The long-range coefficients describing the electrostatic, induction,…

We investigate the interactions between ultracold alkali metal atoms and closed-shell atoms using electronic structure calculations on the prototype system Rb+Sr. There are molecular bound states that can be tuned across atomic thresholds…

Atomic Physics · Physics 2015-05-19 Piotr S. Zuchowski , J. Aldegunde , Jeremy M. Hutson

Heavy polar diatomic molecules are currently among the most promising probes of fundamental physics. Constraining the electric dipole moment of the electron (eEDM), in order to explore physics beyond the Standard Model, requires a synergy…

Atomic Physics · Physics 2018-04-18 M Abe , V S Prasannaa , B P Das

Alkaline-earth-like transition-metal atoms such as Zn and Cd are promising candidates for precision measurements and quantum many-body physics experiments. Here, we theoretically investigate the properties of diatomic molecules containing…

Atomic Physics · Physics 2021-11-02 Klaudia Zaremba-Kopczyk , Michał Tomza

We report the successful buffer-gas cooling and magnetic trapping of chromium atoms with densities exceeding $10^{12}$ atoms per cm$^{3}$ at a temperature of 350 mK for the trapped sample. The possibilities to extend the method to…

We explore the electronic structure and rovibrational properties of an ultralong-range triatomic Rydberg molecule formed by a Rydberg atom and a ground state heteronuclear diatomic molecule. We focus here on interaction of Rb($27s$) Rydberg…

Atomic Physics · Physics 2015-06-22 Rosario González-Férez , H. R. Sadeghpour , Peter Schmelcher

Ultracold YbAg molecules have been recently proposed as promising candidates for electron electric dipole moment searches [Verma, Jayich, and Vutha, Phys. Rev. Lett. 125, 153201 (2020)]. Here, we calculate potential energy curves, permanent…

Atomic Physics · Physics 2023-03-21 Michał Tomza

We propose a platform for observing and controlling the interactions between atomic ions and a quantum gas of polar molecules in the ultracold regime. This approach is based on the combination of several recently developed methods in two…

Atomic Physics · Physics 2025-06-26 Leon Karpa , Olivier Dulieu

Heavy polar diatomic molecules are the leading candidates in searches for the permanent electric dipole moment of the electron (eEDM). Next-generation eEDM search experiments ideally require extremely large coherence times, in large…

Atomic Physics · Physics 2019-04-10 A. Sunaga , V. S. Prasannaa , A. C. Vutha , M. Abe , M. Hada , B. P. Das

Magnetic excitations are important quantum phenomena in magnetic systems and have been widely studied in individual magnetic atoms and molecules as well as their assembled structures over the past few decades. Using scanning tunneling…

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