Results 31 to 40 of about 4,770,410 (219)

Coherent excitation of ultracold atoms between ground and Rydberg states [PDF]

open access: yes, 2011
This thesis describes the development of an experiment to study coherent population transfer between ground states, and between ground and Rydberg states, in ultracold atoms.
Abel, Richard Philip   +1 more
core  

Highly-excited Rydberg excitons in synthetic thin-film cuprous oxide

open access: yesScientific Reports, 2023
Cuprous oxide ( $$\hbox {Cu}{}_2\hbox {O}$$ Cu 2 O ) has recently emerged as a promising material in solid-state quantum technology, specifically for its excitonic Rydberg states characterized by large principal quantum numbers (n).
Jacob DeLange   +6 more
doaj   +1 more source

Phonon dressing of a facilitated one-dimensional Rydberg lattice gas

open access: yesSciPost Physics Core, 2022
We study the dynamics of a one-dimensional Rydberg lattice gas under facilitation (anti-blockade) conditions which implements a so-called kinetically constrained spin system.
Matteo Magoni, Paolo P. Mazza, Igor Lesanovsky
doaj   +1 more source

Exploring the Boundaries of Aromaticity in Complex Structures and Excited States Through Computational Analysis

open access: yesChemistry – A European Journal, EarlyView.
Understanding aromaticity has evolved from benzene‐centric concepts to a broad multidimensional framework spanning organic, inorganic, and excited‐state systems. This review highlights ambiguities between magnetic, electronic, geometric, and energetic descriptors, emphasizing the need for unified, multi‐criteria approaches.
Sílvia Escayola   +2 more
wiley   +1 more source

A cold strontium Rydberg gas [PDF]

open access: yes, 2011
Cold gases of Rydberg atoms are an ideal system in which to study the novel effects of strong interatomic interactions. This thesis describes the design and construction of the world's first experiment to study Rydberg states in a cold gas of an alkaline
MILLEN, JAMES
core  

Quantum Spin-Ice and Dimer Models with Rydberg Atoms

open access: yesPhysical Review X, 2014
Quantum spin-ice represents a paradigmatic example of how the physics of frustrated magnets is related to gauge theories. In the present work, we address the problem of approximately realizing quantum spin ice in two dimensions with cold atoms in optical
A. W. Glaetzle   +5 more
doaj   +1 more source

Quantization of Polaritons Confined in Dielectric Structures

open access: yesLaser &Photonics Reviews, EarlyView.
This study addresses the limitations of the Hopfield model of strong light‐matter coupling in the case of structured dieletrics. A method to derive quantum models in the polariton basis using Bogoliubov transformation and third quantization is introduced, demonstrating how to boost interaction strength and engineer nonlocal interactions for strongly ...
Amir Rahmani   +4 more
wiley   +1 more source

Light storage and control of photon-photon interactions in a cold Rydberg gas [PDF]

open access: yes, 2013
The effect of strong interatomic interactions on an optical field stored in Rydberg states of a cold atomic gas is investigated. Due to their large dipole moments Rydberg atoms interact very strongly with each other.
MAXWELL, DANIEL,THOMAS
core  

Scanning electron microscopy of Rydberg-excited Bose–Einstein condensates

open access: yesNew Journal of Physics, 2014
We report on the realization of high resolution electron microscopy of Rydberg-excited ultracold atomic samples. The implementation of an ultraviolet laser system allows us to excite the atom, with a single-photon transition, to Rydberg states.
T Manthey   +6 more
doaj   +1 more source

Predicting Statistical Signatures of Collective Emission in Disordered Color Center Ensembles

open access: yesLaser &Photonics Reviews, EarlyView.
We present an efficient simulation framework for modeling collective emission in disordered ensembles of quantum emitters. The low computational complexity enables large‐scale Monte Carlo simulations. Applied to SiV−${\rm SiV}^{-}$ clusters, it predicts thresholded superradiant bursts set by emitter number and quantum efficiency, as well as interaction‐
Qingyi Zhou   +4 more
wiley   +1 more source

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