"Good afternoon, gentlemen. I am a HAL 9000 computer.

I became operational at the H. A. L. lab in Urbana, Illinois

on the 12th of January"

This sound is enconded on an 18 qubit quantum computer and it is recovered with a finite number of quantum measurments performed in time or frequency domain (MP3 like) in presence of gate imperfections.

We can also listen the sound of a complex quantum wavefunction generated by an efficient quantum algorithm (14 qubits).

Quantum computations are done

on Quantium I simulated numerically on Pentium IV.

The paper is at http://arXiv.org/abs/quant-ph/0309018

The original HAL speech and *2001 A Space odyssey* pictures are taken
from http://www.palantir.net/2001/

The HAL Quantum Speech

- 10 measurements per frame

- 10 measurements per frame

quantum errors (amplitude of gate errors 0.05)

- 10 measurements per frame

- 10 measurements per frame