  In this paper the thermal processes generated by yoctosecond (10-24 s) laser
pulses in QGP are investigated. Considering that the relaxation time in QGP is
of the order of 1 ys it is shown that in QGP the yoctosecond laser pulses can
generate the thermal waves with velocity v = c (0.3 fm/ys).
  Key words: QGP, thermal waves, yoctosecond pulses
