Brain networks exhibit very variable and dynamical functional connectivity flexible configurations of information exchange despite their overall fixed structure. oscillations are hypothesized to underlie time-dependent by periodically changing the excitability neural populations. In this paper, we investigate role connection delay detuning between natural frequencies populations in transmission signals. Based on numerical simulations analytical arguments, show that amount transfer two...

Transcranial alternating current stimulation (tACS) represents a promising non-invasive treatment for an increasingly wide range of neurological and neuropsychiatric disorders. The ability to use periodically oscillating electric fields non-invasively engage neural dynamics opens up the possibility recruiting synaptic plasticity modulate brain function. However, despite consistent reports about tACS clinical effectiveness, strong state-dependence combined with ubiquitous heterogeneity...

Heterogeneity is omnipresent across all living systems. Diversity enriches the dynamical repertoire of these systems but remains challenging to reconcile with their manifest robustness and persistence over time, a fundamental feature called resilience. To better understand mechanism underlying resilience in neural circuits, we considered nonlinear network model, extracting relationship between excitability heterogeneity measure resilience, quantified number stationary states this network,...

A comparative study of a qutrit (three-level atomic system) coupled to classical field in typical Markovian reservoir (free space) and photonic band-gap (PBG) crystal is carried out. The aim the assess collective impact structured environment control system on dynamics quantum coherence, non-Markovianity, estimation parameters which are initially encoded state. We show that constructive interplay PBG material as medium driving part results significant enhancement all traits interest,...

We propose a new permanent magnetic lattice for creating periodic arrays of Ioffe-Pritchard microtraps holding and controlling ultracold atoms Bose-Einstein condensates (BECs). Lattice can be designed on thin layer films such as $Tb_6$$Gd_10$$Fe_{80}$$Co_4$. In details, we investigate single two crossed layers sawtooth patterns with thicknesses 50 500nm respectively periodicity 1$μ$m. Trap depth frequencies changed via an applied bias field to handle tunneling rates between sites. present...

Periodic brain stimulation (PBS) techniques, either intracranial or non-invasive, electrical magnetic, represent promising neuromodulatory tools for the treatment of neurological and neuropsychiatric disorders. Through modulation endogenous oscillations, PBS may engage synaptic plasticity, hopefully leading to persistent lasting effects. However, stabilizing such effects represents an important challenge: interaction between induced electromagnetic fields neural circuits yield highly...

Synchronization between neuronal populations is hypothesized to play a crucial role in the communication brain networks. The binding of features, or association computations occurring spatially segregated areas, supposed take place when stable synchronization cortical areas occurs. While direct cortico-cortical connection typically fails support this mechanism, participation third area, relay element, mediating was proposed overcome limitation. Among different structures that could...

We propose and numerically study two permanent magnetic micro-structures for creating Ioffe-Pritchard microtraps. A bias field is used to vary the depth, trap frequencies minimum of each microtrap. After Bose-Einstein condensation achievement, can be slowly removed increase barrier heights more efficiently holding condensates. Even without external field, it possible hold ultracold atoms in These microtraps may also useful single atom experiments quantum information processing due their very...

Abstract Brain networks exhibit very variable and dynamical functional connectivity flexible configurations of information exchange despite their overall fixed structure (connectome). oscillations are hypothesized to underlie time-dependent by periodically changing the excitability neural populations. In this paper, we investigate role that connection delay frequency detuning between different populations play in transmission signals. Based on numerical simulations analytical arguments, show...

Abstract Non-invasive brain stimulation techniques are widely used for manipulating the behaviour of neuronal circuits and excitability neurons therein. While usage these is studied at meso- macroscopic scales, less known about specificity such approaches level individual cells. Here we use models based on morphologies real pyramidal parvalbumin from mouse primary visual cortex created by Allen Institute Brain Science to explore variability evoked response susceptibility different uniform...

Abstract Transcranial alternating current stimulation (tACS) represents a promising non-invasive treatment for an increasingly wide range of neurological and neuropsychiatric disorders. The ability to use periodically oscillating electric fields non-invasively engage neural dynamics opens up the possibility recruiting synaptic plasticity modulate brain function. However, despite consistent reports about tACS clinical effectiveness, strong state-dependence combined with ubiquitous...