Results 21 to 30 of about 6,954 (226)
Cooperative Optical Non-linearity in a blockaded Rydberg Ensemble [PDF]
, 2011 This thesis describes the observation of a novel optical non-linearity mediated by the dipole-dipole interactions in a cold gas of Rydberg atoms. Electromagnetically induced transparency (EIT) is used to map the strong dipolar interactions onto an ...
Pritchard, Jonathan David +2 more
core +1 more source
Digital quantum simulation with Rydberg atoms [PDF]
Quantum Information Processing, 2011 We discuss in detail the implementation of an open-system quantum simulator with Rydberg states of neutral atoms held in an optical lattice. Our scheme allows one to realize both coherent as well as dissipative dynamics of complex spin models involving many-body interactions and constraints.
Hendrik Weimer +3 more
openaire +2 more sources
Surface-modified interactions between Rydberg atoms [PDF]
, 2021 Rydberg atoms are highly excited atoms with intriguing properties. In the framework of quantum electrodynamics, the internal dynamics of a Rydberg atom in front of a surface are investigated in fourth order perturbation theory.
Block, Johannes (gnd: 1260691993)
core +1 more source
Quantum Ising Hamiltonian Programming in Trio, Quartet, and Sextet Qubit Systems
PRX 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
Dynamics of atoms within atoms
New Journal of Physics, 2022 Recent experiments with Bose–Einstein condensates have entered a regime in which thousands of ground-state condensate atoms fill the Rydberg-electron orbit.
S Tiwari +5 more
doaj +1 more source
Scanning electron microscopy of Rydberg-excited Bose–Einstein condensates
New 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
Potassium‐Ligand Cooperation Facilitated Chemical Bond Activation and Catalytic Hydrogenation
Angewandte Chemie, EarlyView.A new strategy for alkali metal‐mediated catalysis based on metal–ligand cooperation (MLC) is presented. Potassium pincer complexes exhibit remarkable reactivity toward a range of molecules via an unprecedented potassium–ligand cooperative mechanism. This reactivity enables potassium‐catalyzed hydrogenation, providing efficient reduction of ketones and
Yaoyu Liang +6 more
wiley +2 more sources
Controlling Rydberg Excitations Using Ion-Core Transitions in Alkaline-Earth Atom-Tweezer Arrays
PRX Quantum, 2022 Scalable local control over gate operations is an outstanding challenge in the field of quantum computing and programmable quantum simulation with Rydberg-atom arrays.
Alex P. Burgers +6 more
doaj +1 more source
INVESTIGATION OF THE SPECTRUM OF ZN I ATOMS IN THE TRIPLET RYDBERG STATES [PDF]
Radio Physics and Radio Astronomy, 2021 Purpose: This work aims at investigating the zinc atoms in the triplet preionization – Rydberg states. The energy levels of atoms having two electrons outside the closed shell were studied mainly by the optical spectroscopy methods.
N. I. Pogrebnyak +2 more
doaj +1 more source
Electromagnetically Induced Transparency with Rydberg Atoms [PDF]
Physical Review Letters, 2011 We present a theory of electromagnetically induced transparency in a cold ensemble of strongly interacting Rydberg atoms. Long-range interactions between the atoms constrain the medium to behave as a collection of superatoms, each comprising a blockade volume that can accommodate at most one Rydberg excitation.
Petrosyan, David +2 more
openaire +3 more sources