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1999•Journal of Applied PhysicsRequires access

Influence of imperfections on the dynamical response in model quantum cellular automata

Irina I. Yakimenko, Igor V. Zozoulenko, C.-K. Wang, Karl‐Fredrik Berggren

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Abstract

The time-dependent behavior of quantum cellular automata (QCA) with imperfections is examined. We have studied a chain of quantum cells with the imperfections introduced by (i) variations of intercellular distances, (ii) variations of intercell tunneling strengths, and (iii) stray charges. We find that imperfections like these may easily impair the switching properties of semiconductor based QCAs.

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What this paper is about

The time-dependent behavior of quantum cellular automata (QCA) with imperfections is examined. We have studied a chain of quantum cells with the imperfections introduced by (i) variations of intercellular distances, (ii) variations of intercell tunneling strengths, and (iii) stray charges. We find that imperfections like these may easily impair the switching properties of semiconductor based QCAs.

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OpenAlex reports 18 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

The time-dependent behavior of quantum cellular automata (QCA) with imperfections is examined. We have studied a chain of quantum cells with the imperfections introduced by (i) variations of intercellular distances, (ii) variations of intercell tunneling strengths, and (iii) stray charges. We find that imperfections like these may easily impair the switching properties of semiconductor based QCAs.

Key concepts: Cellular automaton, Quantum cellular automaton, Quantum, Quantum dot cellular automaton, Quantum tunnelling, Physics, Statistical physics, Condensed matter physics

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