Results 31 to 40 of about 279,237 (328)
The Art of grid fields: Geometry of neuronal time
Frontiers in Neural Circuits, 2016 The discovery of grid cells in the entorhinal cortex has both elucidated our understanding of spatial representations in the brain, and germinated a large number of theoretical models regarding the mechanisms of these cells’ striking spatial firing ...
Andrey eShilnikov +2 more
doaj +1 more source
On the eigenvalues of some nonhermitian oscillators [PDF]
, 2013 We consider a class of one-dimensional nonhermitian oscillators and discuss the relationship between the real eigenvalues of PT-symmetric oscillators and the resonances obtained by different authors.
Fern/'andez, Francisco M. +1 more
core +2 more sources
Einstein-Podolsky-Rosen correlations between two uniformly accelerated oscillators [PDF]
, 2006 We consider the quantum correlations, i.e. the entanglement, between two systems uniformly accelerated with identical acceleration a in opposite Rindler quadrants which have reached thermal equilibrium with the Unruh heat bath.
D. J. Raine +6 more
core +2 more sources
Journal of Mathematical Physics, 2002 A generalized oscillator algebra is proposed and the braided Hopf algebra structure for this generalized oscillator is investigated. Using the solutions for the braided Hopf algebra structure, two types of braided Fibonacci oscillators are introduced. This leads to two types of braided Biedenharn–Macfarlane oscillators as special cases of the Fibonacci
openaire +4 more sources
CMOS time-to-digital converters for mixed-mode signal processing
The Journal of Engineering, 2014 This study provides an in-depth review of the principles, architectures and design techniques of CMOS time-to-digital converters (TDCs). The classification of TDCs is introduced.
Fei Yuan
doaj +1 more source
Biophysical clocks face a trade-off between internal and external noise resistance
eLife, 2018 Many organisms use free running circadian clocks to anticipate the day night cycle. However, others organisms use simple stimulus-response strategies (‘hourglass clocks’) and it is not clear when such strategies are sufficient or even preferable to free ...
Weerapat Pittayakanchit +4 more
doaj +1 more source
Phase Response Curves of Coupled Oscillators
, 2008 Many real oscillators are coupled to other oscillators and the coupling can affect the response of the oscillators to stimuli. We investigate phase response curves (PRCs) of coupled oscillators.
A. Pikovsky +8 more
core +1 more source
Journal of Neural Engineering, 2015 Oscillations are an important aspect of brain activity, but they often have a low signal-to-noise ratio (SNR) due to source-to-electrode mixing with competing brain activity and noise. Filtering can improve the SNR of narrowband signals, but it introduces ringing effects that may masquerade as genuine oscillations, leading to uncertainty as to the true
Alain de Cheveigné +2 more
openaire +3 more sources
Synchronization of oscillators coupled through an environment
, 2008 We study synchronization of oscillators that are indirectly coupled through their interaction with an environment. We give criteria for the stability or instability of a synchronized oscillation.
Camacho +28 more
core +1 more source