Optical qubits uniquely combine information transfer in optical fibers with a good processing capability and are therefore attractive tools for quantum technologies. A large challenge, however, is to overcome the low efficiency of two-qubit logic gates. The experimentally achieved an controlled not (cnot) gate reached approximately 11% 2003 has seen no increase since. Here, we report on new pla...

Photonic Logic Gates In article number 2204839, Chi-Ming Che and co-workers describe a photonic logic gate device based on supramolecular heterostructures made by phosphorescent Au, Cu, Pt, Pd complexes. The operation is realized an optical waveguiding effect energy transfer among the different building blocks. These gates have high emission anisotropy, low loss, continuously varied colors rang...

Quantum dot cellular Automata (QCA) is leading technology for alternative of CMOS design. Reversible Logic design is found to be Low power design which becomes emerging technology in Low power Nanotechnology era. In this work we devoted to design a Reversible Logic Gate which is a universal gate (known as URLG) and can be design with alternative of co-planer cross over wire. We introduce a pass...

In this paper we propose a new concept for multiplication by using modified booth algorithm and reversible logic functions. Modified booth algorithm produces less delay compare to normal multiplication process. Modified booth algorithm reduces the number partial products which will reduces maximum delay count a the output. by combining modified booth algorithm with reversible gate logic it will...

In the recent years, reversible logic has emerged as a promising technology having its applications in low power CMOS, quantum computing, nanotechnology, and optical computing. The classical set of gates such as AND, OR, and EXOR are not reversible. This paper proposes a new 4 * 4 reversible gate called “TSG” gate. The proposed gate is used to design efficient adder units. The most significant ...

We propose a scheme to implement quantum phase gate for two Λ ions trapped in optical cavity. It is shown that quantum phase gate can be implemented by applying a laser addressing to a single ions in strongly detuned optical cavity. We further demonstrate that geometric quantum phase gate can be implemented by introducing a auxiliary ground state. In recent years, it is realized that quantum co...

A long-standing goal of computer technology is to process and store digital information with the same device in order to implement new architectures. One way to accomplish this is to use nanomagnetic logic gates that can perform Boolean operations and then store the output data in the magnetization states of nanomagnets, thereby doubling as both logic and memory. Unfortunately, many of these na...

All the basic logic gates play a major role in carrying out mathematical computation. The drawbacks of conventional electronics are alleviated by all-optical integrated circuits with great application high-speed computing and information processing. In this paper, plasmonic metal–insulator–metal (MIM) waveguides have an excellent property propagating surface plasmons beyond diffraction limit up...