Results 21 to 30 of about 397,923 (311)

Fabrication of crystals from single metal atoms [PDF]

open access: yes, 2014
Metal nanocrystals offer new concepts for the design of nanodevices with a range of potential applications. Currently the formation of metal nanocrystals cannot be controlled at the level of individual atoms. Here we describe a new general method for the
Smith, C.J.   +34 more
core   +1 more source

Quadrupole interaction of non-diffracting beams with two-level atoms

open access: yesResults in Physics, 2019
Recently it has been shown that the quadrupole interactions can be improved significantly as the atom interacts at near resonance with the Laguerre-Gaussian (LG) mode.
Saud Al-Awfi, Smail Bougouffa
doaj   +1 more source

Thermal entanglement in a double Jaynes–Cummings model

open access: yesФизика волновых процессов и радиотехнические системы, 2020
In this paper, we have investigated the entanglement dynamics between two initially entangled qubits interacting with two independent thermal cavities modes in the framework of resonant double JaynesCummings model.
Evgeny K. Bashkirov   +1 more
doaj   +1 more source

Dynamical properties of quantum Fisher information of a two-level atoms interacting with two-mode superposition coherent state

open access: yesAlexandria Engineering Journal, 2021
A quantum cavity filled with a nonlinear medium (Kerr like medium) and contains a 2-mode field interacting with time dependence of 2-qubit is investigated.
Haifa S. Alqannas   +2 more
doaj   +1 more source

Optomechanical coupling between ultracold atoms and a membrane oscillator [PDF]

open access: yes, 2014
In this thesis, I report on the realization of a hybrid optomechanical system in which ultracold atoms are coupled to a micromechanical membrane. The atoms are trapped in the intensity maxima of an optical standing wave formed by retroreflection of a ...
Korppi, Maria
core   +1 more source

An efficient quantum memory based on two-level atoms

open access: yesNew Journal of Physics, 2013
We propose a method to implement a quantum memory for light based on ensembles of two-level atoms. Our protocol is based on controlled reversible inhomogeneous broadening (CRIB), where an external field first dephases the atomic polarization and thereby ...
Ivan Iakoupov, Anders S Sørensen
doaj   +1 more source

Dynamical Features of Isolated Two- and Three-Level Atoms Interacting with a Cavity Field

open access: yesAdvances in Mathematical Physics, 2022
Some dynamical features of two- and three-level atoms interacting locally with an ideal cavity field are investigated. These dynamical features are introduced by employing the statistical atomic inversion, entropy squeezing, and tomographic entropy.
M. Y. Abd-Rabbou   +2 more
doaj   +1 more source

Nonlinear Schrödinger equation and two-level atoms [PDF]

open access: yesPhysical Review A, 1996
General features of nonlinear quantum mechanics are discussed in the context of applications to two-level atoms.
openaire   +3 more sources

Cooperative Optical Non-linearity in a blockaded Rydberg Ensemble [PDF]

open access: yes, 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

Double dressing by both the number of atoms and the number of photons inside cavity

open access: yesResults in Physics, 2023
We study a system of N two-level atoms interacting with a coherent field a resonant cavity in a self-consistent manner. No direct correlation between the atoms, such as induced by dipole–dipole interaction, is included. Initially all atoms are not exited,
Gennady A. Koganov, Reuben Shuker
doaj   +1 more source

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