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Related papers: Coherent Microwave Control of Ultracold $^{23}$Na$…

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We demonstrate coherent control of both the rotational and hyperfine state of ultracold, chemically stable $^{87}$Rb$^{133}$Cs molecules with external microwave fields. We create a sample of ~2000 molecules in the lowest hyperfine level of…

Quantum Gases · Physics 2016-11-02 Philip D. Gregory , Jesus Aldegunde , Jeremy M. Hutson , Simon L. Cornish

We report the full control over the internal states of ultracold $^{23}$Na$^{87}$Rb molecules, including vibrational, rotational and hyperfine degrees of freedom. Starting from a sample of weakly bound Feshbach molecules, we realize the…

Quantum Gases · Physics 2018-03-07 Mingyang Guo , Xin Ye , Junyu He , Goulven Quéméner , Dajun Wang

We explore the uses of ultracold molecules as a platform for future experiments in the field of quantum simulation, focusing on two molecular species, $^{40}$Ca$^{19}$F and $^{87}$Rb$^{133}$Cs. We report the development of coherent quantum…

Coherence, the stability of the relative phase between quantum states, lies at the heart of quantum mechanics. Applications such as precision measurement, interferometry, and quantum computation are enabled by physical systems that have…

Quantum Gases · Physics 2017-08-07 Jee Woo Park , Zoe Z. Yan , Huanqian Loh , Sebastian A. Will , Martin W. Zwierlein

We demonstrate coherent microwave control of the rotational, hyperfine and Zeeman states of ultracold CaF molecules, and the magnetic trapping of these molecules in a single, selectable quantum state. We trap about $5\times 10^{3}$…

We report the observation of microwave coherent control of rotational states of ultracold $^{85}$Rb$^{133}$Cs molecules formed in their vibronic ground state by short-range photoassociation. Molecules are formed in the single rotational…

Atomic Physics · Physics 2020-07-10 Zhonghua Ji , Ting Gong , Yonglin He , Jeremy M. Hutson , Yanting Zhao , Liantuan Xiao , Suotang Jia

Molecules have vibrational, rotational, spin-orbit and hyperfine degrees of freedom or quantum states, each of which responds in a unique fashion to external electromagnetic radiation. The control over superpositions of these quantum states…

Quantum Physics · Physics 2024-04-29 Svetlana Kotochigova , Qingze Guan , Eite Tiesinga , Vito Scarola , Brian DeMarco , Bryce Gadway

We have demonstrated microwave-assisted coherent control of ultracold $^{85}$Rb$^{133}$Cs molecules with a ladder-type configuration of rotational states. A probe microwave (MW) field is used to couple a lower state $X^1\Sigma^+(v=0, J=1)$…

Atomic Physics · Physics 2021-03-16 Ting Gong , Zhonghua Ji , Jiaqi Du , Yanting Zhao , Liantuan Xiao , Suotang Jia

In this study, we achieved magnetic control of reactive scattering in an ultracold mixture of $^{23}$Na atoms and $^{23}$Na$^{6}$Li molecules. In most molecular collisions, particles react or are lost near short range with unity…

Atomic Physics · Physics 2022-03-14 Hyungmok Son , Juliana J. Park , Yu-Kun Lu , Alan O. Jamison , Tijs Karman , Wolfgang Ketterle

We explore coherent multi-photon processes in $^{87}$Rb$^{133}$Cs molecules using 3-level lambda and ladder configurations of rotational and hyperfine states, and discuss their relevance to future applications in quantum computation and…

Quantum Gases · Physics 2020-11-13 Jacob A. Blackmore , Philip D. Gregory , Sarah L. Bromley , Simon L. Cornish

We study quantum control of the full hyperfine manifold in the ground-electronic state of alkali atoms based on applied radio frequency and microwave fields. Such interactions should allow essentially decoherence-free dynamics and the…

Quantum Physics · Physics 2009-11-13 Seth T. Merkel , Poul S. Jessen , Ivan H. Deutsch

We report on the creation of an ultracold dipolar gas of fermionic $^{23}$Na$^{40}$K molecules in their absolute rovibrational and hyperfine ground state. Starting from weakly bound Feshbach molecules, we demonstrate hyperfine resolved…

Quantum Gases · Physics 2015-07-16 Jee Woo Park , Sebastian A. Will , Martin W. Zwierlein

We report a detailed molecular spectroscopy study on the lowest excited electronic states of $^{23}\rm{Na}^{87}\rm{Rb}$ for producing ultracold $^{23}\rm{Na}^{87}\rm{Rb}$ molecules in the electronic, rovibrational and hyperfine ground…

Quantum Gases · Physics 2017-11-22 Mingyang Guo , Romain Vexiau , Bing Zhu , Bo Lu , Nadia Bouloufa-Maafa , Olivier Dulieu , Dajun Wang

We 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 rely on external electromagnetic fields.…

Atomic Physics · Physics 2021-04-21 Adrien Devolder , Paul Brumer , Timur V. Tscherbul

We calculate the microwave spectra of ultracold KRb alkali metal dimers, including hyperfine interactions and in the presence of electric and magnetic fields. We show that microwave transitions may be used to transfer molecules between…

Chemical Physics · Physics 2015-05-13 J. Aldegunde , Hong Ran , Jeremy M. Hutson

Rotational states of ultracold polar molecules possess long radiative lifetimes, microwave-domain coupling, and tunable dipolar interactions. The availability of numerous rotational states has inspired many proposed applications, including…

Ultracold molecules offer entirely new possibilities for the control of quantum processes due to their rich internal structure. Recently, near quantum degenerate gases of molecules have been prepared in their rovibronic ground state. For…

Atomic Physics · Physics 2015-05-14 S. Ospelkaus , K. -K. Ni , G. Quemener , B. Neyenhuis , D. Wang , M. H. G. de Miranda , J. L. Bohn , J. Ye , D. S. Jin

We demonstrate the coherent creation of a single NaCs molecule in its rotational, vibrational, and electronic (rovibronic) ground state in an optical tweezer. Starting with a weakly bound Feshbach molecule, we locate a two-photon transition…

We show that the precise preparation of a quantum superposition between three rotational states of an ultracold dipolar molecule generates controllable interferences in their two-body scattering dynamics and collisional rate coefficients,…

Quantum Gases · Physics 2024-06-21 Thibault Delarue , Goulven Quéméner

Single molecules trapped in the solid state at liquid helium temperatures are promising quantum emitters for the development of quantum technologies owing to their remarkable photostability and their lifetime-limited optical coherence time…

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