Results 21 to 30 of about 2,249 (208)

Generation of quantum states with nonlinear squeezing by Kerr nonlinearity

open access: yesOptics Express, 2021
In quantum optics, squeezing corresponds to the process in which fluctuations of a quadrature operator are reduced below the shot noise limit. In turn, nonlinear squeezing can be defined as reduction of fluctuations related to nonlinear combination of quadrature operators.
Bräuer, Šimon, Marek, Petr
openaire   +3 more sources

Entanglement Dynamics Induced by a Squeezed Coherent Cavity Coupled Nonlinearly with a Qubit and Filled with a Kerr-Like Medium

open access: yesEntropy, 2021
An analytical solution for a master equation describing the dynamics of a qubit interacting with a nonlinear Kerr-like cavity through intensity-dependent coupling is established.
Abdel-Baset A. Mohamed, Hichem Eleuch
doaj   +1 more source

Enhancing Third- and Fifth-Order Nonlinearity via Tunneling in Multiple Quantum Dots

open access: yesNanomaterials, 2019
The nonlinearity of semiconductor quantum dots under the condition of low light levels has many important applications. In this study, linear absorption, self-Kerr nonlinearity, fifth-order nonlinearity and cross-Kerr nonlinearity of multiple quantum ...
Si-Cong Tian   +9 more
doaj   +1 more source

Kerr nonlinearity and group velocity dispersion of InGaAs/InP and GaAsSb/InP waveguides in the mid-infrared

open access: yesAPL Photonics, 2023
We report measurements of Kerr nonlinearity and group velocity dispersion in In0.53Ga0.47As/InP and GaAs0.51Sb0.49/InP ridge waveguides in the mid-infrared using four-wave mixing at λ ≈ 5 µm.
Kevin Zhang   +2 more
doaj   +1 more source

Optical Pattern Formation in a Rydberg-Dressed Atomic Gas with Non-Hermitian Potentials

open access: yesPhotonics, 2022
Spontaneous pattern formation from a spatially homogeneous background of nonlinear systems driven out of equilibrium is a widespread phenomenon in nature.
Zeyun Shi   +3 more
doaj   +1 more source

Kerr nonlinearity enhancement by double tunnelling from quantum dot nanostructure

open access: yesResults in Physics, 2016
A model of the dynamical equations of the density matrix describes double tunnelling between double quantum dot (QD) system states, this is to study Kerr nonlinearity in QD structure.
B. Al-Nashy   +2 more
doaj   +1 more source

Complete hyperentangled state analysis using weak cross-Kerr nonlinearity and auxiliary entanglement

open access: yesNew Journal of Physics, 2020
We present a new method for the complete analysis of hyperentangled Bell state and Greenberger–Horne–Zeilinger state in polarization and spatial-mode degrees of freedom, resorting to weak cross-Kerr nonlinearity and auxiliary frequency entanglement.
Zhi Zeng, Ka-Di Zhu
doaj   +1 more source

Cross-Kerr nonlinearity: a stability analysis [PDF]

open access: yesMathematics of Quantum Technologies, 2015
AbstractWe analyse the combined effect of the radiation-pressure and cross-Kerr nonlinearity on the stationary solution of the dynamics of a nanomechanical resonator interacting with an electromagnetic cavity. Within this setup,we show how the optical bistability picture induced by the radiation-pressure force is modi fied by the presence of the cross ...
Sarala, Roope, Massel, Francesco
openaire   +3 more sources

Spatial solitons in Schrodinger equation with a spatially modulated nonlinearity: Variational approach [PDF]

open access: yesMathematics and Computational Sciences, 2023
In is paper, we have studied the propagation of spatial solitons in the medium with a spatially modulated nonlinearity. Wave equation includes the terms of diffraction and periodic self- focusing.
Mahboubeh Ghalandari
doaj   +1 more source

Enhancement of Kerr nonlinearity by multiphoton coherence [PDF]

open access: yesOptics Letters, 2003
4 pages, 3 figures Submitted to Optics ...
Matsko, A. B.   +3 more
openaire   +3 more sources

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