Laser cooling for quantum gases

F Schreck, K Druten - Nature Physics, 2021 - nature.com
Laser cooling exploits the physics of light scattering to cool atomic and molecular gases to
close to absolute zero. It is the crucial initial step for essentially all atomic gas experiments in …

Differential clock comparisons with a multiplexed optical lattice clock

X Zheng, J Dolde, V Lochab, BN Merriman, H Li… - Nature, 2022 - nature.com
Rapid progress in optical atomic clock performance has advanced the frontiers of
timekeeping, metrology and quantum science,–. Despite considerable efforts, the …

Exponential improvement in photon storage fidelities using subradiance and “selective radiance” in atomic arrays

A Asenjo-Garcia, M Moreno-Cardoner, A Albrecht… - Physical Review X, 2017 - APS
A central goal within quantum optics is to realize efficient, controlled interactions between
photons and atomic media. A fundamental limit in nearly all applications based on such …

Alkaline-earth atoms in optical tweezers

A Cooper, JP Covey, IS Madjarov, SG Porsev… - Physical Review X, 2018 - APS
We demonstrate single-shot imaging and narrow-line cooling of individual alkaline-earth
atoms in optical tweezers; specifically, strontium trapped in 515.2-nm light. Our approach …

Robust encoding of a qubit in a molecule

VV Albert, JP Covey, J Preskill - Physical Review X, 2020 - APS
We construct quantum error-correcting codes that embed a finite-dimensional code space in
the infinite-dimensional Hilbert space of rotational states of a rigid body. These codes, which …

Error budgeting for a controlled-phase gate with strontium-88 Rydberg atoms

A Pagano, S Weber, D Jaschke, T Pfau, F Meinert… - Physical Review …, 2022 - APS
We study the implementation of a high fidelity controlled-phase gate in a Rydberg quantum
computer. The protocol is based on a symmetric gate with respect to the two qubits as …

Realizing topological edge states with Rydberg-atom synthetic dimensions

SK Kanungo, JD Whalen, Y Lu, M Yuan… - Nature …, 2022 - nature.com
A discrete degree of freedom can be engineered to match the Hamiltonian of particles
moving in a real-space lattice potential. Such synthetic dimensions are powerful tools for …

Spectroscopic observation of SU(N)-symmetric interactions in Sr orbital magnetism

X Zhang, M Bishof, SL Bromley, CV Kraus… - science, 2014 - science.org
SU (N) symmetry can emerge in a quantum system with N single-particle spin states when
spin is decoupled from interparticle interactions. Taking advantage of the high measurement …

Multi-ensemble metrology by programming local rotations with atom movements

AL Shaw, R Finkelstein, RBS Tsai, P Scholl, TH Yoon… - Nature Physics, 2024 - nature.com
Current optical atomic clocks do not utilize their resources optimally. In particular, an
exponential gain in sensitivity could be achieved if multiple atomic ensembles were to be …

Laser cooling to quantum degeneracy

S Stellmer, B Pasquiou, R Grimm, F Schreck - Physical review letters, 2013 - APS
We report on Bose-Einstein condensation in a gas of strontium atoms, using laser cooling as
the only cooling mechanism. The condensate is formed within a sample that is continuously …