5 papers
On the Excitability of Ultra-Low-Power CMOS Analog Spiking Neurons
Léopold Van Brandt, Grégoire Brandsteert, Denis Flandre
The excitability property of spiking neurons describes their capability to output an action potential as a real-time response to an input synaptic excitation current and is central…
Predicting State Transitions in Autonomous Nonlinear Bistable Systems with Hidden Stochasticity
Léopold Van Brandt, Jean-Charles Delvenne
Bistable autonomous systems can be found inmany areas of science. When the intrinsic noise intensity is large, these systems exhibits stochastic transitions from onemetastable stea…
Moments of Entropy Production in Dissipative Devices
Jean-Charles Delvenne, Léopold Van Brandt
We characterize the possible moments of entropy production for general overdamped Markovian systems. We find a general formulation of the problem, and derive a new necessary condit…
Stochastic Nonlinear Dynamical Modelling of SRAM Bitcells in Retention Mode
Léopold Van Brandt, Denis Flandre, Jean-Charles Delvenne
SRAM bitcells in retention mode behave as autonomous stochastic nonlinear dynamical systems. From observation of variability-aware transient noise simulations, we provide an unidim…
Variability-Aware Noise-Induced Dynamic Instability of Ultra-Low-Voltage SRAM Bitcells
Léopold Van Brandt, Jean-Charles Delvenne, Denis Flandre
Stability of ultra-low-voltage SRAM bitcells in retention mode is threatened by two types of uncertainty: process variability and intrinsic noise. While variability dominates the f…