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Basin entropy as an indicator of a bifurcation in a time-delayed system
(Institute of Physics (IOP), 2024-05)
Article
Open AccessThe basin entropy is a measure that quantifies, in a system that has two or more attractors, the predictability of a final state, as a function of the initial conditions. While the basin entropy has been demonstrated on a ... -
Inferring the connectivity of coupled oscillators from event timing analysis
(Elsevier, 2024-05)
Article
Restricted access - publisher's policyUnderstanding the coupling structure of interacting systems is an important open problem, and many methods have been proposed to reconstruct a network from observed data. Most require continuous observation of the nodes’ ... -
Permutation entropy analysis of EEG signals for distinguishing eyes-open and eyes-closed brain states: Comparison of different approaches
(American Institute of Physics (AIP), 2024-04-10)
Article
Open AccessDeveloping reliable methodologies to decode brain state information from electroencephalogram (EEG) signals is an open challenge, crucial to implementing EEG-based brain–computer interfaces (BCIs). For example, signal ... -
Anisotropic pressure effects on nanoconfined water within narrow graphene slit pores
(Royal Society of Chemistry (RSC), 2023-11-07)
Article
Restricted access - publisher's policyThere is an increasing interest toward disclosing and explaining confinement effects on liquids, such as water or aqueous solutions, in slit pore setups. Particularly puzzling are the changes of physical and chemical ... -
Nanoconfinement effects on water in narrow graphene-based slit pores as revealed by THz spectroscopy
(Royal Society of Chemistry (RSC), 2022-10-28)
Article
Open AccessThe properties of water at interfaces have long been known to differ from those of bulk water in many distinctive ways. More recently, specific confinement effects different from mere interfacial effects have been discovered ... -
Controlling monoterpene isomerization by guiding challenging carbocation rearrangement reactions in engineered squalene-hopene cyclases
(John Wiley & sons, 2024-03-18)
Article
Open AccessThe interconversion of monoterpenes is facilitated by a complex network of carbocation rearrangement pathways. Controlling these isomerization pathways is challenging when using common Brønsted and Lewis acid catalysts, ... -
Mode-cleaning in antisymmetrically modulated non-Hermitian waveguides
(2024-01-12)
Article
Open AccessWe demonstrate all-optical spatial mode-cleaning in non-Hermitian waveguides. The effect is accounted by a unidirectional coupling among the modes resulting from a simultaneous modulation of the refractive index and the ... -
An equivalent lattice-modified model of interfering Bragg bandgaps and Locally Resonant Stop Bands for phononic crystal made from Locally Resonant elements
(2023-08-01)
Article
Open AccessThe design and development of advanced devices based on metamaterials to control the transmission of acoustic waves is a hot topic. An important class of these metamaterials is based on phononic crystals with Locally ... -
Spatially structured optical pump for laser generation tuning
(2023-12-23)
Article
Open AccessThe goal and essential parameter of laser light conversion is achieving emitted radiation of higher brightness. For many applications, the laser beam must have the highest available beam quality and highest achievable ... -
Resonant x-ray difference frequency generation
(2023-12-28)
Article
Restricted access - publisher's policyResonantly enhanced x-ray difference-frequency generation (re-XDFG) is a second-order nonlinear effect that involves illuminating a molecule with two-color x-ray pulses with photon energies O1 and O2. The energy difference ... -
All-regions tunable high harmonic enhancement by a periodic static electric field
(American Institute of Physics (AIP), 2010-02-19)
Article
Open AccessSimulations show that a static electric field periodically distributed in space can be used to control the production of coherent light by high-order harmonic generation in a wide spectral range covering extremeultraviolet ... -
Permutation entropy-based characterization of speckle patterns generated by semiconductor laser light
(2023-12)
Article
Open AccessSemiconductor lasers with optical feedback are stochastic nonlinear systems that can display complex dynamics and abrupt changes when their operation conditions change. Even very small changes can lead to large variations ...
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