Results 1 to 10 of about 158,407 (191)

Incoherent control of optical signals: Quantum-heat-engine approach [PDF]

open access: yesPhysical Review Research, 2021
Optical pump-probe signals can be viewed as work done by the matter while transferring the energy between two coherent baths (from pump to probe). In thermodynamics, a heat engine, such as a laser, is a device which performs similar work but operating ...
Md. Qutubuddin, Konstantin E. Dorfman
doaj   +3 more sources

Metamaterial-based polarization control plate for producing incoherent laser irradiation [PDF]

open access: yesApplied Optics, 2012
We present a metamaterial-based random polarization control plate to produce incoherent laser irradiation by exploiting the ability of metamaterial in local polarization manipulation of beam upon transmission via tuning its local geometry.
Fan, Dianyuan   +4 more
core   +3 more sources

Deep learning prediction of noise-driven nonlinear instabilities in fibre optics [PDF]

open access: yesNature Communications
Machine learning is bringing revolutionary approaches into many fields of physics. Among those, photonics enables fast and scalable information processing.
Yassin Boussafa   +9 more
doaj   +2 more sources

Modulation instability control via evolutionarily optimized optical seeding [PDF]

open access: yesNanophotonics
Controlling nonlinear pulse propagation in optical fibers is paramount for applications spanning spectroscopy and optical communication networks. However, the inherent complexity of laser pulse evolution in matter, shaped by the interplay of nonlinearity
Sader Lynn   +5 more
doaj   +2 more sources

Pandemic influenza control in Europe and the constraints resulting from incoherent public health laws [PDF]

open access: yesBMC Public Health, 2010
Background With the emergence of influenza H1N1v the world is facing its first 21st century global pandemic. Severe Acute Respiratory Syndrome (SARS) and avian influenza H5N1 prompted development of pandemic preparedness plans. National systems of public
Martin Robyn   +9 more
doaj   +10 more sources

Incoherent control and entanglement for two-dimensional coupled systems [PDF]

open access: yesPhysical Review A, 2005
We investigate accessibility and controllability of a quantum system S coupled to a quantum probe P, both described by two-dimensional Hilbert spaces, under the hypothesis that the external control affects only P.
D'Alessandro, D., Romano, R.
core   +2 more sources

Assessment of Intravoxel Incoherent Motion Diffusion‐Weighted Imaging in Insomnia [PDF]

open access: yesBrain and Behavior
Purpose Few studies have investigated insomnia using intravoxel incoherent motion imaging. The aim ofthis study was to evaluate the classification performance of intravoxel incoherent motion diffusion‐weighted imaging in differentiating between insomnia ...
Wenjie Tang   +7 more
doaj   +2 more sources

Azimuthally dependent absorption and gain in an atomic system with spontaneously generated coherence controlled by an optical vortex field [PDF]

open access: yesScientific Reports
This paper examines spatially dependent absorption and gain of a weak probe field in a 3-level atomic $$\Lambda$$ -system with spontaneously generated coherence and incoherent pump, using an optical vortex beam as the control field.
Viačeslav Kudriašov   +3 more
doaj   +2 more sources

Quantum Gate Generation in Two-Level Open Quantum Systems by Coherent and Incoherent Photons Found with Gradient Search

open access: yesPhotonics, 2023
In this work, we consider an environment formed by incoherent photons as a resource for controlling open quantum systems via an incoherent control. We exploit a coherent control in the Hamiltonian and an incoherent control in the dissipator which induces
Vadim N. Petruhanov, Alexander N. Pechen
doaj   +1 more source

Control of the von Neumann Entropy for an Open Two-Qubit System Using Coherent and Incoherent Drives

open access: yesEntropy, 2023
This article is devoted to developing an approach for manipulating the von Neumann entropy S(ρ(t)) of an open two-qubit system with coherent control and incoherent control inducing time-dependent decoherence rates. The following goals are considered: (a)
Oleg V. Morzhin, Alexander N. Pechen
doaj   +1 more source

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