Results 21 to 30 of about 27,968 (212)

Correlations of Rydberg excitations in an ultra-cold gas after an echo sequence [PDF]

open access: yes, 2009
We show that Rydberg states in an ultra-cold gas can be excited with strongly preferred nearest-neighbor distance if densities are well below saturation.
Ates, C.   +6 more
core   +2 more sources

Generation of cold Rydberg atoms at submicron distances from an optical nanofiber

open access: yesPhysical Review Research, 2020
We report on a controllable, hybrid quantum system consisting of cold Rydberg atoms and an optical nanofiber interface. Using a two-photon ladder-type excitation in ^{87}Rb, we demonstrate both coherent and incoherent Rydberg excitation at submicron ...
Krishnapriya Subramonian Rajasree   +4 more
doaj   +1 more source

Quantum Computing with Circular Rydberg Atoms

open access: yesPRX Quantum, 2021
Rydberg-atom arrays are a leading platform for quantum computing and simulation, combining strong interactions with highly coherent operations and flexible geometries.
Sam R. Cohen, Jeff D. Thompson
doaj   +1 more source

Dynamical generation of chiral W and Greenberger-Horne-Zeilinger states in laser-controlled Rydberg-atom trimers

open access: yesPhysical Review Research, 2022
Motivated by the significantly improved scalability of optically trapped neutral-atom systems, extensive efforts have been devoted in recent years to quantum-state engineering in Rydberg-atom ensembles.
Thorsten Haase   +2 more
doaj   +1 more source

Guiding of Rydberg atoms in a high-gradient magnetic guide

open access: yes, 2012
We study the guiding of $^{87}$Rb 59D$_{5/2}$ Rydberg atoms in a linear, high-gradient, two-wire magnetic guide. Time delayed microwave ionization and ion detection are used to probe the Rydberg atom motion.
Hempel, C.   +5 more
core   +1 more source

Observation of spin-orbit-dependent electron scattering using long-range Rydberg molecules

open access: yesPhysical Review Research, 2020
We present experimental evidence for spin-orbit interaction of an electron as it scatters from a neutral atom. The scattering process takes place within a Rb_{2} ultralong-range Rydberg molecule, consisting of a Rydberg atomic core, a Rydberg electron ...
Markus Deiß   +8 more
doaj   +1 more source

Single-Atom Addressing in Microtraps for Quantum-State Engineering using Rydberg Atoms

open access: yes, 2014
We report on the selective addressing of an individual atom in a pair of single-atom microtraps separated by $3\;\mu$m. Using a tunable light-shift, we render the selected atom off-resonant with a global Rydberg excitation laser which is resonant with ...
Barredo, Daniel   +6 more
core   +4 more sources

Quantum Ising Hamiltonian Programming in Trio, Quartet, and Sextet Qubit Systems

open access: yesPRX Quantum, 2020
Rydberg-atom quantum simulators are of keen interest because of their possibilities towards high-dimensional qubit architectures. Here we report continuous tuning of quantum Ising Hamiltonians of Rydberg atoms in three-dimensional arrangements.
Minhyuk Kim   +3 more
doaj   +1 more source

Photoionization of Rydberg atoms in optical lattices

open access: yesNew Journal of Physics, 2021
We develop a formalism for photoionization (PI) and potential energy curves (PECs) of Rydberg atoms in ponderomotive optical lattices and apply it to examples covering several regimes of the optical-lattice depth.
R Cardman   +4 more
doaj   +1 more source

Theory of long range interactions for Rydberg states attached to hyperfine split cores

open access: yes, 2017
The theory is developed for one and two atom interactions when the atom has a Rydberg electron attached to a hyperfine split core state. This situation is relevant for some of the rare earth and alkaline earth atoms that have been proposed for ...
Booth, D. W.   +2 more
core   +1 more source

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