Neuronal circuit based on Josephson junction actuated by a photocurrent: dynamical analysis and microcontroller implementation

A circuit made of a phototube in series with a linear resistor connected in parallel to a resistor–capacitor shunted Josephson junction (JJ) is proposed to describe a neuron sensitive to external illuminations. The neuronal circuit based on JJ actuated by a photocurrent is analytically, numerically...

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Bibliographic Details
Published in:The European physical journal. B, Condensed matter physics Condensed matter physics, 2022-06, Vol.95 (6), Article 91
Main Authors: Foka, Noel Freddy Fotie, Ramakrishnan, Balamurali, Chamgoué, André Cheage, Talla, Alain Francis, Kuetche, Victor Kamgang
Format: Article
Language:English
Subjects:
Analysis
Capacitors
Circuits
Complex Systems
Condensed Matter Physics
Damping
Electric potential
Fluid- and Aerodynamics
Hysteresis loops
Josephson junctions
Microcontrollers
Neurons
Numerical analysis
Oscillations
Parameters
Photoelectric effect
Photoelectric emission
Physics
Physics and Astronomy
Regular Article - Statistical and Nonlinear Physics
Resistors
Solid State Physics
Spiking
Stability analysis
Voltage
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Summary:A circuit made of a phototube in series with a linear resistor connected in parallel to a resistor–capacitor shunted Josephson junction (JJ) is proposed to describe a neuron sensitive to external illuminations. The neuronal circuit based on JJ actuated by a photocurrent is analytically, numerically and experimentally investigated in this paper. The stability of the equilibrium points obtained from the rate equations describing the neuronal circuit based on JJ actuated by a photocurrent is studied. The hysteresis loop widths of current–voltage curves increase with the increase of the damping parameter due to the linear resistor in series with phototube for a constant phototube voltage. Whereas the hysteresis loop of current–voltage curves shifts on the left with the increase of constant phototube voltage. Periodic spiking oscillations, periodic bursting oscillations, continuous spiking oscillations, chaotic spiking oscillations, and chaotic oscillations are found during the numerical analysis by varying the damping parameter due to the linear resistor in series with the phototube and modulation parameters of a sinusoidal voltage of phototube. Finally, the numerical analysis results are confirmed by the microcontroller implementation of a neuronal circuit based on JJ neuron actuated by a photocurrent. Graphical abstract
ISSN:1434-6028
1434-6036
DOI:10.1140/epjb/s10051-022-00343-8