Cold hybrid ion-atom systems

M Tomza, K Jachymski, R Gerritsma, A Negretti… - Reviews of modern …, 2019 - APS
Hybrid systems of laser-cooled trapped ions and ultracold atoms combined in a single
experimental setup have recently emerged as a new platform for fundamental research in …

High-fidelity entanglement and detection of alkaline-earth Rydberg atoms

IS Madjarov, JP Covey, AL Shaw, J Choi, A Kale… - Nature Physics, 2020 - nature.com
Trapped neutral atoms have become a prominent platform for quantum science, where
entanglement fidelity records have been set using highly excited Rydberg states. However …

Ultralong-range Rydberg molecules

C Fey, F Hummel, P Schmelcher - Molecular Physics, 2020 - Taylor & Francis
We review ultralong-range Rydberg molecules (ULRMs), which are bound states between a
Rydberg atom and one or more ground-state atoms with bond lengths on the order of …

Fast and dephasing-tolerant preparation of steady Knill-Laflamme-Milburn states via dissipative Rydberg pum**

RH Zheng, Y **ao, SL Su, YH Chen, ZC Shi, J Song… - Physical Review A, 2021 - APS
We propose a fast and dephasing-tolerant scheme for the preparation of steady Knill-
Laflamme-Milburn (KLM) state between a pair of Rydberg atoms by dissipation. In this …

Transport of a single cold ion immersed in a Bose-Einstein condensate

T Dieterle, M Berngruber, C Hölzl, R Löw… - Physical Review Letters, 2021 - APS
We investigate transport dynamics of a single low-energy ionic impurity in a Bose-Einstein
condensate. The impurity is implanted into the condensate starting from a single Rydberg …

Ionic polaron in a Bose-Einstein condensate

GE Astrakharchik, LAP Ardila, R Schmidt… - Communications …, 2021 - nature.com
The presence of strong interactions in a many-body quantum system can lead to a variety of
exotic effects. Here we show that even in a comparatively simple setup consisting of a …

Long-range Rydberg-atom–ion molecules of Rb and Cs

A Duspayev, X Han, MA Viray, L Ma, J Zhao… - Physical Review …, 2021 - APS
We propose a novel type of Rydberg dimer, consisting of a Rydberg-state atom bound to a
distant positive ion. The molecule is formed through long-range electric-multipole interaction …

Long-range atom–ion Rydberg molecule: A novel molecular binding mechanism

M Deiß, S Haze, J Hecker Denschlag - Atoms, 2021 - mdpi.com
We present a novel binding mechanism where a neutral Rydberg atom and an atomic ion
form a molecular bound state at a large internuclear distance. The binding mechanism is …

Quantum-limited thermometry of a fermi gas with a charged spin particle

L Oghittu, A Negretti - Physical Review Research, 2022 - APS
We investigate the sensitivity of an ion sensor in determining the temperature of an atomic
Fermi gas. Our study extends to charged impurities the proposal by MT Mitchison et al.[Phys …

Inelastic collision dynamics of a single cold ion immersed in a Bose-Einstein condensate

T Dieterle, M Berngruber, C Hölzl, R Löw, K Jachymski… - Physical Review A, 2020 - APS
We investigate inelastic collision dynamics of a single cold ion in a Bose-Einstein
condensate. We observe rapid ion-atom-atom three-body recombination leading to the …