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Related papers: Ultracold field-linked tetratomic molecules

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Ultracold diatomic molecules have achieved significant breakthroughs in recent years, enabling the exploration of quantum chemistry, precision measurements, and strongly correlated many-body physics. Extending ultracold molecular complexity…

Quantum Gases · Physics 2025-09-30 Zhengyu Gu , Xuansheng Zhou , Wei Chen , Wei Han , Fulin Deng , Tao Shi , Pengjun Wang , Jing Zhang

We explore the feasibility of optically forming long-range tetratomic and larger polyatomic molecules in their ground electronic state from ultracold pairs of polar molecules aligned by external fields. Depending on the relative orientation…

Atomic Physics · Physics 2021-06-16 Marko Gacesa , Jason N. Byrd , Jonathan Smucker , John A. Montgomery, , Robin Côté

We predict the existence of stable bound states between pairs of ultracold diatomic molecules with the aid of a static electric field and 1D harmonic confinement. We focus on collisions of NaK-NaK identical fermions, for which we find that…

Atomic Physics · Physics 2024-09-25 Reuben R. W. Wang , John L. Bohn

The presence of electric or microwave fields can modify the long-range forces between ultracold dipolar molecules in such a way as to engineer weakly-bound states of molecule pairs. These so-called field-linked states [Avdeenkov et al.,…

Atomic Physics · Physics 2024-06-21 Goulven Quéméner , John L. Bohn , James F. E. Croft

We investigate the static and dynamic properties of tetratomic molecules formed by two microwave-shielded polar molecules across field-linked resonances. In particular, we focus on two-body physics and experimental techniques unexplored in…

Quantum Physics · Physics 2024-05-24 Fulin Deng , Xing-Yan Chen , Xin-Yu Luo , Wenxian Zhang , Su Yi , Tao Shi

Chemical reactions can be surprisingly efficient at ultracold temperatures ( < 1mK) due to the wave nature of atoms and molecules. The study of reactions in the ultracold regime is a new research frontier enabled by cooling and trapping…

Atomic Physics · Physics 2017-01-16 Lee R. Liu , Jessie T. Zhang , Yichao Yu , Nicholas R. Hutzler , Yu Liu , Till Rosenband , Kang-Kuen Ni

We create fermionic dipolar $^{23}$Na$^6$Li molecules in their triplet ground state from an ultracold mixture of $^{23}$Na and $^6$Li. Using magneto-association across a narrow Feshbach resonance followed by a two-photon STIRAP transfer to…

We report on the first creation of ultracold bosonic heteronuclear molecules of two fermionic species, 6Li and 40K, by a magnetic field sweep across an interspecies s-wave Feshbach resonance. This allows us to associate up to 4x10^4…

Other Condensed Matter · Physics 2009-11-13 A. -C. Voigt , M. Taglieber , L. Costa , T. Aoki , W. Wieser , T. W. Hänsch , K. Dieckmann

Ultracold polar molecules offer strong electric dipole moments and rich internal structure, which makes them ideal building blocks to explore exotic quantum matter, implement novel quantum information schemes, or test fundamental symmetries…

Ultracold assembly of diatomic molecules has enabled great advances in controlled chemistry, ultracold chemical physics, and quantum simulation with molecules. Extending the ultracold association to triatomic molecules will offer many new…

Atomic Physics · Physics 2022-03-10 Huan Yang , Xin-Yao Wang , Zhen Su , Jin Cao , De-Chao Zhang , Jun Rui , Bo Zhao , Chun-Li Bai , Jian-Wei Pan

A theoretical model is proposed for the formation of ultracold ground-state triatomic molecules in weakly bound energy levels. The process is driven by the electric component of a microwave field, which induces the association of an…

Atomic Physics · Physics 2026-01-16 Baraa Shammout , Leon Karpa , Silke Ospelkaus , Eberhard Tiemann , Olivier Dulieu

Quantum gases of doubly-polar molecules represent appealing frameworks for a variety of cross-disciplinary applications, encompassing quantum simulation and computation, controlled quantum chemistry and precision measurements. Through a…

The rich internal structure and long-range dipole-dipole interactions establish polar molecules as unique instruments for quantum-controlled applications and fundamental investigations. Their potential fully unfolds at ultracold…

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

Heteronuclear alkali-metal dimers represent the class of molecules of choice for creating samples of ultracold molecules exhibiting an intrinsic large permanent electric dipole moment. Among them, the KCs molecule, with a permanent dipole…

Atomic Physics · Physics 2015-04-08 D. Borsalino , R. Vexiau , M. Aymar , E. Luc-Koenig , O. Dulieu , N. Bouloufa-Maafa

We report on the creation of ultracold heteronuclear molecules assembled from fermionic 40K and bosonic 87Rb atoms in a 3D optical lattice. Molecules are produced at a heteronuclear Feshbach resonance both on the attractive and the…

Statistical Mechanics · Physics 2007-05-23 C. Ospelkaus , S. Ospelkaus , L. Humbert , P. Ernst , K. Sengstock , K. Bongs

We demonstrate the production of ultracold polar RbCs molecules in their vibronic ground state, via photoassociation of laser-cooled atoms followed by a laser-stimulated state transfer process. The resulting sample of $X ^1\Sigma^+ (v=0)$…

Atomic Physics · Physics 2009-11-11 J. M. Sage , S. Sainis , T. Bergeman , D. DeMille

Recently, the quest for an ultracold and dense ensemble of polar molecules has attracted strong interest. Polar molecules have bright prospects for novel quantum gases with long-range and anisotropic interactions, for quantum information…

We propose a coherent optical population transfer of weakly bound field-linked (FL) tetratomic molecules (tetramers) to deeper FL bound states using stimulated Raman adiabatic passage. We consider static-electric-field shielded polar…

Atomic Physics · Physics 2026-01-07 Bijit Mukherjee , Michał Tomza

Recent theoretical investigations have indicated that rapid optical cycling should be feasible in complex polyatomic molecules with diverse constituents, geometries and symmetries. However, as a composite molecular mass grows, so does the…

Atomic Physics · Physics 2020-12-18 Konrad Wenz , Ivan Kozyryev , Rees L. McNally , Leland Aldridge , Tanya Zelevinsky
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