Results 31 to 40 of about 6,564 (223)

Strong micro-macro entanglement from a weak cross-Kerr nonlinearity [PDF]

open access: yes, 2014
We study the entanglement generated by a weak cross-Kerr nonlinearity between two initial coherent states, one of which has an amplitude close to the single-photon level, while the other one is macroscopic. We show that strong micro-macro entanglement is
Kaviani, Hamidreza   +4 more
core   +2 more sources

Single photons versus coherent state input in waveguide quantum electrodynamics: light scattering, Kerr and cross-Kerr effect [PDF]

open access: yes, 2022
While the theoretical studies in waveguide quantum electrodynamics predominate with single-photon and two-photon Fock state (photon number states) input, the experiments are primarily carried out using a faint coherent light.
Roy, Dibyendu, Vinu, Athul
core   +4 more sources

Spectrum of a micromaser with Kerr nonlinearity [PDF]

open access: yes, 1995
We analyse the spectrum of a micromaser with a Kerr-type nonlinearity in its cavity. We show that the intracavity Kerr nonlinearity has significant effects on the spectrum leading to narrowing of the subnatural linewidth and frequency ...
Deb, Bimalendu, Ray, Deb Shankar
core   +1 more source

Observation of a large, resonant, cross-Kerr nonlinearity in a cold Rydberg gas

open access: yesPhysical Review Research, 2019
We report the experimental observation of a cross-Kerr nonlinearity in a free-space medium based on resonantly excited, interacting Rydberg atoms and electromagnetically induced transparency.
Josiah Sinclair   +4 more
doaj   +1 more source

Entanglement transfer via cross-Kerr nonlinearity

open access: yesActa Physica Sinica, 2008
We propose a scheme for realizing entanglement transfer based on the cross-Kerr nonlinear interaction between field-modes. By using this scheme the entanglement can be transferred from the field-states with discrete variables to the field-states with continuous variables.
null Yang Jian   +4 more
openaire   +1 more source

“Fast” optical Kerr gate with “slow” nonlinearity [PDF]

open access: yes, 1994
We describe a “fast” optical Kerr gate which can work using nonlinear material with “slow” Kerr nonlinearity. It uses two delayed opening pulses polarized in such a way that the nonlinearity created by the first one is exactly compensated by that of the ...
GADONAS, Roaldas   +2 more
core   +1 more source

Entanglement concentration for arbitrary four-particle linear cluster states

open access: yesScientific Reports, 2017
Cluster states, whose model are a remarkably rich structure in measurement-based quantum computation, hold high degree of entanglement, while entanglement is very fragile during the process of transmission because of the inevitable interaction with the ...
Ting-Ting Song   +2 more
doaj   +1 more source

Enhancing Kerr nonlinearity via quantum interference from incoherent pumping [PDF]

open access: yes, 2014
The effect of quantum interference from incoherent pump field on the Kerr nonlinearity of V- and Lambda-type three-level systems is investigated. It is found that enhanced Kerr nonlinearity can be obtained via quantum interference of incoherent pump ...
Seifoory, H.   +4 more
core   +1 more source

Complete analysis of the maximally hyperentangled state via the weak cross-Kerr nonlinearity [PDF]

open access: yes, 2022
We present a simple method for the complete analysis of maximally hyperentangled state in polarization and spatial-mode degrees of freedom assisted by the weak cross-Kerr nonlinearity.
Zeng, Zhi
core   +4 more sources

Cross-Kerr nonlinearity in the surface plasmon polariton waves generated at the interface of graphene and gain medium [PDF]

open access: yes, 2018
Surface plasmon polariton (SPP) waves generated at the interface of graphene and a gain-assisted medium due to the effective Kerr nonlinear variation of the dielectric function are controlled and modified. The gain doublet in the SPP waves is measured at
M. S. Abdul Jabar   +3 more
core   +1 more source

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