nt - p h / 03 03 03 8 v 2 19 M ar 2 00 3 Ancilla - assisted quantum process tomography

nt - p h / 03 02 02 8 v 1 4 F eb 2 00 3 Quantum Tomography

ar X iv : q ua nt - p h / 02 03 04 6 v 1 1 1 M ar 2 00 2 Quantum imaging

We provide a brief overview of the newly born field of quantum imaging, and discuss some concepts that lie at the root of this field.

ua nt - p h / 03 03 17 5 v 1 2 9 M ar 2 00 3 Shor ’ s Algorithm for Factoring Large Integers ∗

This work is a tutorial on Shor's factoring algorithm by means of a worked out example. Some basic concepts of Quantum Mechanics and quantum circuits are reviewed. It is intended for non-specialists which have basic knowledge on undergraduate Linear Algebra.

ar X iv : q ua nt - p h / 04 03 22 8 v 1 3 0 M ar 2 00 4 States , Knots and Networks

This paper details possible extensions and also limitations of the Aravind Hypothesis for comparing quantum measurement with classical topological measurement. We detail a separate, network model for quantum evolution and measurement, where the background space is replaced by an evolving network. In this model there is an analog of the Aravind Hypothesis that promises to directly illuminate rel...

ua nt - p h / 05 03 04 1 v 1 3 M ar 2 00 5 Differential geometry of density states

We consider a geometrization, i.e., we identify geometrical structures, for the space of density states of a quantum system. We also provide few comments on a possible application of this geometrization for composite systems.