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Direct loading of lanthanide atoms into magneto-optical traps (MOTs) from a very slow cryogenic buffer gas beam source is achieved, without the need for laser slowing. The beam source has an average forward velocity of 60-70\,m/s and a…

Atomic Physics · Physics 2014-07-01 Boerge Hemmerling , Garrett K. Drayna , Eunmi Chae , Aakash Ravi , John M. Doyle

The growing proliferation of unmanned aerial vehicles (UAVs) poses major challenges for reliable airspace surveillance, as drones are typically small, have low radar cross-sections, and often move slowly in cluttered environments. These…

Signal Processing · Electrical Eng. & Systems 2026-04-16 Anders Malthe Westerkam , Jakob Möderl , Erik Leitinger , Troels Pedersen

We demonstrate an atom trap geometry for 87Rb which is capable of producing ultra high atom densities. Reradiation forces, which usually limit high densities, can be avoided in dark spontaneous-force optical traps (dark SPOTs) by sheltering…

Atomic Physics · Physics 2013-08-22 Neal Radwell , Graeme Walker , Sonja Franke-Arnold

Typical contact detection is based on the monitoring of a threshold value in the force and torque signals. The selection of a threshold is challenging for robots operating in unstructured or highly dynamic environments, such in a household…

Robotics · Computer Science 2020-12-04 Jaime Maldonado , Asil Kaan Bozcuoğlu , Christoph Zetzsche

We present a theoretical model describing recently observed collective effects in large magneto-optically trapped atomic ensembles. Based on a kinetic description we develop an efficient test particle method, which in addition to the single…

Atomic Physics · Physics 2009-11-11 T. Pohl , G. Labeyrie , R. Kaiser

The problem of multi-robot target tracking asks for actively planning the joint motion of robots to track targets. In this paper, we focus on such target tracking problems in adversarial environments, where attacks or failures may…

Robotics · Computer Science 2021-09-22 Lifeng Zhou , Vijay Kumar

Effective monitoring of mobile animal populations is crucial for ecological research, wildlife management, and agricultural applications. Monitoring of bats specifically can help understand the spread of disease as well as shine light on…

Systems and Control · Electrical Eng. & Systems 2025-12-09 Maatla Sefawe , Sravya Ganti , Julianna Segalla , Erwei He , Isaac Tourner , Julia Gersey

The cloud of cold atoms produced by a Magneto-Optical Trap is known to exhibit instabilities. We examine in this paper in which limits it could be possible to realize an experimental trap similar to the configurations studied theoretically,…

Atomic Physics · Physics 2015-06-15 Rudy Romain , Philippe Verkerk , Daniel Hennequin

We present a robust continuous optical loading scheme for a Ioffe-Pritchard (IP) type magnetic trap. Atoms are cooled and trapped in a modified magneto-optical trap (MOT) consisting of a conventional 2D-MOT in radial direction and an axial…

Quantum Physics · Physics 2007-05-23 Piet O. Schmidt , Sven Hensler , Joerg Werner , Thomas Binhammer , Axel Goerlitz , Tilman Pfau

The growing adoption of lattice-based structures in soft robotics creates a need for advanced sensing solutions capable of monitoring their global deformation, particularly compression and extension. In this work, we address this challenge…

Robotics · Computer Science 2026-05-19 Petr Trunin , Carolina Gay , Anderson Brazil Nardin , Trevor Exley , Diana Cafiso , Lucia Beccai

We demonstrate a blue-detuned magneto-optical trap (MOT) of a polyatomic molecule, calcium monohydroxide (CaOH). We identify a novel MOT frequency configuration that produces high spatial compression of the molecular cloud. This high…

We present the properties and advantages of a new magneto-optical trap (MOT) where blue-detuned light drives `type-II' transitions that have dark ground states. Using $^{87}$Rb, we reach a radiation-pressure-limited density exceeding…

Atomic Physics · Physics 2018-02-28 K. N. Jarvis , J. A. Devlin , T. E. Wall , B. E. Sauer , M. R. Tarbutt

We report on the design, implementation, and performance of a compact two-dimensional magneto-optical trap (2D MOT) for cesium. In a small-volume vacuum chamber, the setup uses cesium dispensers in close proximity to the trapping region of…

In Mott materials strong electron correlation yields a spectrum of complex electronic structures. Recent synthesis advancements open realistic opportunities for harnessing Mott physics to design transformative devices. However, a major…

We present the simultaneous trapping and cooling of ${}^{85}$Rb, ${}^{87}$Rb and ${}^{133}$Cs in a triple-species magneto-optical trap (MOT). This demonstration is obtained using an all-fibre compact and robust laser system based on telecom…

A three-dimensional magneto-optical trap (MOT), as an efficient method of producing cold atoms from room-temperature atomic vapor, has been widely used to develop atomic sensors. Various compact MOTs using a single laser beam have been…

Atomic Physics · Physics 2025-10-27 Timothy H. Nguyen , Mariam Mchedlidze , Guanghui Su , Balthazar Loglia , Hanbo Yang , Xuejian Wu

We describe an approach to optically trapping small, chemically stable molecules at cryogenic temperatures by buffer-gas loading a deep optical dipole trap. The ~10 K trap depth will be produced by a tightly-focused, 1064-nm cavity capable…

We study the use of squeezed probe light and evasion of measurement back-action to enhance the sensitivity and measurement bandwidth of an optically-pumped magnetometer (OPM) at sensitivity-optimal atom number density. By experimental…

Quantum Physics · Physics 2023-12-04 Charikleia Troullinou , Vito Giovanni Lucivero , Morgan W. Mitchell

Magneto-optical traps (MOTs) of highly magnetic lanthanides open the door to explorations of novel phases of strongly correlated matter such as lattice supersolids and quantum liquid crystals. We recently reported the first MOTs of the five…

Atomic Physics · Physics 2010-10-25 Seo Ho Youn , Mingwu Lu , Ushnish Ray , Benjamin L. Lev

In order to anticipate dangerous events, like a collision, an agent needs to make long-term predictions. However, those are challenging due to uncertainties in internal and external variables and environment dynamics. A sensorimotor model…

Robotics · Computer Science 2012-10-04 Arturo Ribes , Jesús Cerquides , Yiannis Demiris , Ramón López de Mántaras