Quantum mechanical clock is introduced as a means measuring the parameter of quantum mechanical motion, and is seen to be equivalent to the relativistic classical clock.

That quantum mechanical measurement processes are indeterministic is widely known. The time evolution governed by the differential SchroÈ dinger equation can also be indeterministic under the extreme conditions of a quantum supertask, the quantum analogue of a classical supertask. Determinism can be restored by requiring normalizability of the supertask state vector, but it must be imposed as a...

We describe the design for a solid-state quantum computational architecture based on the integration of GHz-frequency mechanical resonators with Josephson phase qubits, which have the potential for demonstrating a variety of singleand multi-qubit operations critical to quantum computation. The computational qubits are eigenstates of large-area, current-biased Josephson junctions. Two or more qu...

We derive the equations of relativistic quantum mechanics from a modified version of classical electrodynamics, where probability is replaced by potential. As a result, a particle is not a localized entity, in the classical sense, but has a localized energy extremum. The particle/wave aspect of matter is inherent in the particle/wave equation describing elementary particles. Furthermore, the He...

⋆ Since the world (so far as we know) is quantum mechanical, “classical” information must be some sort of “quantum information.” • The precise sense in which this is so remains a subject of investigation at the present time. Despite (or because of?) an enormous number of publications on the subject, the community has not arrived at any consensus. ◦ E.g., the term “classical information” is wide...

A cyclic nature of quantum mechanical clock is discussed as " quantization of time. " Quantum mechanical clock is seen to be equivalent to the relativistic classical clock.

A cyclic nature of quantum mechanical clock is discussed as " quantization of time. " Quantum mechanical clock is seen to be equivalent to the relativistic classical clock.

Arbitrary quantum states cannot be copied. In fact, to make a copy we must provide complete information about the system. However, can a quantum system self-replicate? This is not answered by the no-cloning theorem. In the classical context, Von Neumann showed that a ‘universal constructor’ can exist which can self-replicate an arbitrary system, provided that it had access to instructions for m...

The Ar(3) system has been studied between T=0 K and T=40 K by means of a path-integral Monte Carlo (PIMC) method. The behavior of the average energy in terms of the temperature has been explained by comparison with results obtained with the thermal averaged rovibrational spectra estimated via: (i) a quantum mechanical method based on distributed Gaussian functions for the interparticle distance...

we will present a detailed investigation of intersubband transitions process in core-multi shells quantum dots. the confined wave functions and eigenenergies of electrons in quantum dots have been calculated under the effective-mass approximation by solving a three-dimensional schrodinger equation. excellent dependence is found between size effects, time relaxation and degenerate four wave mixi...