The action of the S-duality Sl(2, Z) group on the moduli of the Calabi-Yau manifold W IP 11226 appearing in the rank two dual pair (K 3 × T 2/W IP 11226) is defined by interpreting the N =4 to N =2 flow, for SU(2) supersymmetric YangMills, in terms of the Calabi-Yau moduli. The different singularity loci are mapped in a one to one way, and the (N =2 limit/point particle limit) is obtained in bo...

Application of quantum-dot is a promising technology for implementing digital systems at nano-scale.  Quantum-dot Cellular Automata (QCA) is a system with low power consumption and a potentially high density and regularity. Also, QCA supports the new devices with nanotechnology architecture. This technique works </...

Yao’s garbled circuits have been extensively used in Secure Function Evaluations (SFE). Several improvements have been proposed to improve the efficiency of garbled circuits. Kolesnikov and Schneider (2008) proposed the free-XOR technique. Naor, Pinkas, and Sumner (1999) introduced garbled row-reduction technique GRR3 to reduce each garbled gate to three ciphertexts, Pinkas et al (2009) propose...

Mobile computing devices like mobile, laptops& tablets that covered large market of end user facing battery issues is an open challenge for research scholars. In this project work I have attempt to optimize power [batteries relate issues] at decoding. Stare of most efficient error control LDPC code which is being used. In this work bit flipping decoder hard decision decoding is used which can b...

Quantum-dot Cellular Automata (QCA) is a possible future nanoelectronic computing technology, based on cells of coupled quantum dots. The QCA cells have features on the very low nanometer scale, much smaller than the present state of art size of the smallest transistor. This paper presents design and layout of novel XOR gate implementations with minimum complexity and cell count in comparison w...

The most important mathematical operation for any computing system is addition. An efficient adder can be of greater assistance in designing of any arithmetic circuits. Quantum-dot Cellular Automata (QCA) is a promising nanotechnology to create electronic circuits for computing devices and suitable candidate for next generation of computing systems. The article presents a modest approach to imp...

We study the effect of the spin-orbit interaction on quantum gate operations based on the spin exchange coupling where the qubit is represented by the electron spin in a quantum dot or a similar nanostructure. Our main result is the exact cancellation of the spin-orbit effects in the sequence producing the quantum XOR gate for the ideal case where the pulse shapes of the exchange and spin-orbit...