We report the successful generation of an entangled multiparticle quantum superposition of pure photon states. They result from a multiple universal cloning of a single photon qubit by a high gain, quantum-injected parametric amplifier. The information preserving property of the process suggests for these states the name of ”multi-particle qubits”. They are ideal objects for investigating the e...

Mobile robots are built for different purposes, have different physical size, shape, mechanics and electronics. They are required to work in real-time, realize more than one goal simultaneously, hence to communicate and cooperate with other agents. The approach proposed in this paper for mobile robot control is reactive and has layered structure that supports multi sensor perception. Potential ...

Multi-valued Fredkin gates (MVFG) are reversible gates and they can be considered as modified version of the better known reversible gate the Fredkin gate. Reversible logic gates are circuits that have the same number of inputs and outputs and have one-to-one and onto mapping between vectors of inputs and outputs; thus the vector of input states can be always reconstructed from the vectors of o...

In speech processing systems with large speaker to microphone distance such as hearing aids or hands-free telephony the recorded speech signal is often heavily corrupted by additive acoustic background noise. Microphone arrays can significantly improve the received speech quality by extracting the desired speech source and suppressing disturbing background noise and reverberation. High performa...

In this article, we present a multi-radio management (MRM) architecture for intelligent access selection and load balancing over multiple radio access technologies. We discuss possible implementations of this MRM architecture and analyze to what extent the IEEE 802.21 ‘Media Independent Handover’ framework can be applied here. Starting from the fundamental building blocks of the multi-radio man...

There are two broad approaches to formal statistical inference taken as concerned with the development of methods for analysing noisy empirical data and in particular as the attaching of measures of uncertainty to conclusions. The object of this paper is to summarize what is involved. The issue is this. We have data represented collectively by y and taken to be the observed value of a vector ra...

This paper presents the issues necessary to solve in the designing process of multichannel optical communication systems topologies. The main design assumption is the acceptance of multichanneling in communication system realization. In particular, the basics of designing physical and logical topologies are shown. Also cost aspects of physical and logical topologies realization are shown.

We investigate the gauging of conformal algebras with relations between the generators. We treat the W 5/2 –algebra as a specific example. We show that the gauge-algebra is in general reducible with an infinite number of stages. We show how to construct the BV-extended action, and hence the classical BRST charge. An important conclusion is that this can always be done in terms of the generators...