Design of 1-tape 2-symbol reversible Turing machines based on reversible logic elements
نویسندگان
چکیده
منابع مشابه
Making Universal Reversible Turing Machines
Studies on universal Turing machines (UTM) have a long history, and various small UTMs have been given till now [2, 3, 10–12]. Here, we investigate the problem of constructing small UTMs under the constraint of reversibility, which is a property closely related to physical reversibility. Let URTM(m,n) denote an m-state n-symbol universal reversible Turing machine. So far, six kinds of small URT...
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We consider Turing machines as actions over configurations in ΣZ d which only change them locally around a marked position that can move and carry a particular state. In this setting we study the monoid of Turing machines and the group of reversible Turing machines. We also study two natural subgroups, namely the group of finite-state automata, which generalizes the topological full groups stud...
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Recently testing of Quantum-dot Cellular Automata (QCA) Circuits has attracted a lot of attention. In this paper, QCA is investigated for testable implementations of reversible logic. To amplify testability in Reversible QCA circuits, a test method regarding to Built In Self Test technique is developed for detecting all simulated defects. A new Reversible QCA MUX 2×1 desig...
متن کاملDesigning of Testable Reversible QCA Circuits Using a New Reversible MUX 2×1
Recently testing of Quantum-dot Cellular Automata (QCA) Circuits has attracted a lot of attention. In this paper, QCA is investigated for testable implementations of reversible logic. To amplify testability in Reversible QCA circuits, a test method regarding to Built In Self Test technique is developed for detecting all simulated defects. A new Reversible QCA MUX 2×1 desig...
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In the investigation of minimal machinery in reversible computing, we proved that each nondegenerate 2-state 3-symbol reversible logic element is logically universal. So far, a 2-state 4-symbol element called “rotary element” was shown to be logically universal in the framework of reversible logic element with memory. The main result in this paper not only improves the previous result with resp...
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ژورنال
عنوان ژورنال: Theoretical Computer Science
سال: 2012
ISSN: 0304-3975
DOI: 10.1016/j.tcs.2012.07.027