Recent Research:

The
** Bohm-de
Broglie interpretation** of quantum mechanics is an alternative to
the Copenhaguen interpretation

which, as opposed to the last one, can be applied to a

verified the existence of quantum cosmological models, free of singularities and horizons, which contract to a

non null minimum radius, and after expands as in the standard cosmological model for large values of the radius

as compared to the Planck length. We are investigating the

these scenarios and their consequences to the cosmic background radiation to see if the contracting epoch

preceding the expansion phase we live in can leed to observable facts.

Still
in the quantum cosmological context, we are also studying ** quantum
changes of topology**.

In
** classical**
General Relativity, we study generalizations of the

are not asymptotically flat.

Mains Areas of
Research:

Canonical
Quantum Gravity and Quantum Cosmology

Bohm-de
Broglie Interpretation of Quantum Cosmology

Gravitational
energy

Quantum Topology's
Transition

Structure
Formation
** Publications**

** Curriculum
Vitae **(
postcript file in portugues)

Present
Address : CBPF/LAFEX

Rua Dr. Xavier Sigaud, 150

Room 508 B

Urca - Rio de Janeiro - RJ

Brazil

22290-180

Telephone: 0055-21-5867381

Email:** **
nelsonpn@cbpf.br