This paper describes various techniques to reduce the number of logic gates needed to implement the DES S-boxes in bitslice software. Using standard logic gates, an average of 56 gates per S-box was achieved, while an average of 51 was produced when non-standard gates were utilized. This is an improvement over the previous best result, which used an average of 61 non-standard gates.

We give the optimal decomposition of a universal two-qubit circuit using Heisenberg exchange interactions and single qubit rotations. Tuning the strength and duration of the Heisenberg exchange allows one to implement SWAP gates. Our optimal circuit is constructed from only three SWAP gates and six single qubit gates. We show that three SWAP gates are not only sufficient, but necessary. Since s...

We extend the circuit model of quantum computation so that wiring between gates is soft-coded within registers inside gates. The addresses in these can be manipulated and put into superpositions. This aims at capturing indefinite causal orders making their geometrical layout explicit: we express switch polarizing beam-splitter model. In this context, our main contribution a full characterizatio...

introduction: the purpose of this in vitro study was to compare the ability of triple antibiotic paste (tap) to calcium hydroxide (ch) in disinfecting dentinal tubules. material and methods: sixty root blocks were obtained from extracted single-rooted human teeth. the root canals were enlarged with gates-glidden drills up to size 3 and were contaminated with enterococcus. faecalis ( e. faecalis...

This paper describes the architecture, design & implementation of 2 bit ternary ALU (T-ALU) slice. The proposed ALU is designed for two-bit operation & can be used for n bit operations by cascading n/2 ALU slices. This ALU is implemented using C-MOS ternary logic gates (T-Gates) for ternary arithmetic & logic circuits. Ternary gates are implemented using enhancement / depletion MOSFET technolog...

There are many claims that quantum mechanics plays a key role in the origin and/or operation of biological organisms. The mechanism of the meiosis, mitosis and gametes life cycle from the view-point of quantum for human has been represented. The quantum gates have been used to simulate these processes for the first time. The reason of several hundred sperms has been explained in the male too