We present a general framework for finding the time-optimal evolution and the optimal Hamiltonian for a quantum system with a given set of initial and final states. Our formulation is based on theâ€¦ (More)

We consider the action principle to derive the classical, non-relativistic motion of a self-interacting particle in a 4-D Lorentzian spacetime containing a wormhole and which allows the existence ofâ€¦ (More)

Let us consider the following pattern matching problem. We have at our disposal a database of recorded personsâ€™ pictures, organized into different classes according to certain defined features. Nowâ€¦ (More)

This paper deals with a non-linear model of a camshaft supported by hydrodynamic journal bearings, in order to analyse the elastodynamic behaviour of the desmodromic valve train of a motorbikeâ€¦ (More)

We consider the action principle to derive the classical, relativistic motion of a self-interacting particle in a 4-D Lorentzian spacetime containing a wormhole and which allows the existence ofâ€¦ (More)

We propose a quantum version of a gedanken experiment which supports the generalized second law of black hole thermodynamics. A quantum measurement of particles in the region outside of the eventâ€¦ (More)

The classical field equations of general relativity can be expressed as a single geodesic equation, describing the free fall of a point particle in superspace. Based on this formulation, aâ€¦ (More)

We use the 5-th time action formalism introduced by Halpern and Greensite to stabilize the unbounded Euclidean 4-D gravity in two simple minisuperspace models. In particular, we show that, at theâ€¦ (More)

In this paper the dynamic behaviour of the desmodromic valve train of a motorbike engine is simulated and analysed. The valve train model takes into account the mass distribution, the link elasticâ€¦ (More)