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A Feynmanian approach to phenomenology of the current-voltage problem

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Abstract

Causal relationships between electric current, field intensity and the internal variables determining the current-voltage characteristic can be topologically represented, paralleling, in a certain sense, the use of Feynman diagrams in quantum field theory. In connection with the diagrams thus formed, quantitative formalism can be developed. The differential equation of the current-voltage characteristic di/du=Σ d (i, u), withΣ d the so-called differential conductivity function, constitutes the main result. Presence of a positive feedback loop in the diagram pattern seems to be an obligatory condition for the occurrence of bulk-originated current-controlled negative differential resistance.

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Lumumbova 1, Praha 8, Czechoslovakia.

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Šrobár, F. A Feynmanian approach to phenomenology of the current-voltage problem. Czech J Phys 22, 1155–1167 (1972). https://doi.org/10.1007/BF01690131

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Keywords

  • Differential Equation
  • Field Theory
  • Quantum Field Theory
  • Causal Relationship
  • Feedback Loop