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Stochastic Adder Circuits with Improved Entropy Output.

Mateja Batelić1, Mario Stipčević2

  • 1Department of Physics, Faculty of Science, University of Zagreb, Bijenička Cesta 32, 10000 Zagreb, Croatia.

Entropy (Basel, Switzerland)
|December 23, 2023
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Summary
This summary is machine-generated.

Random pulse computing (RPC) circuits for number summation were studied. New deterministic and nondeterministic adders offer improved output entropy and reduced entropy requirements, advancing programmable RPC hardware.

Keywords:
circuit entropyquantum randomnessrandom flip-floprandom pulse computingstochastic adderstochastic computing

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Area of Science:

  • Neuromorphic engineering
  • Information theory
  • Computer science

Background:

  • Random pulse computing (RPC) is an emerging computational paradigm inspired by biological neurons.
  • Information processing in RPC circuits, particularly for arithmetic operations like summation, requires investigation.
  • Entropy-based metrics are crucial for evaluating the efficiency and performance of RPC circuits.

Purpose of the Study:

  • To analyze and improve information processing in random pulse computing circuits for number summation.
  • To design novel RPC adder circuits with enhanced output entropy and reduced entropy requirements.
  • To experimentally validate the performance of proposed RPC adder designs.

Main Methods:

  • Information-theoretic analysis using entropy budget and relative Kolmogorov-Sinai entropy.
  • Design and implementation of deterministic and nondeterministic random pulse computing adder circuits.
  • Experimental realization using quantum entropy sources and reconfigurable logic devices.

Main Results:

  • Proposed deterministic adders exhibit significantly improved output entropy compared to prior art.
  • A novel exact nondeterministic adder demonstrates reduced additional entropy requirements.
  • Experimental validation confirms precise mathematical results and near-maximum output entropy for the new circuits.
  • The developed circuits offer affordable hardware solutions for entropy generation.

Conclusions:

  • The proposed random pulse computing adder circuits meet the requirements for building programmable RPC systems.
  • These advancements contribute to the development of efficient and high-performance neuromorphic computing hardware.
  • The study highlights the potential of entropy-based design principles in random pulse computing.