  The quantum decoherence program has become more attractive in providing an
acceptable solution for the long-standing quantum measurement problem.
Decoherence by quantum entanglement happens very quickly to entangle the
quantum system with the environment including the detector. But in the final
stage of measurement, acquiring the unentangled pointer states poses some
problems. Recent experimental observations of the effect of the ubiquitous
quantum vacuum fluctuations in destroying quantum entanglement appears to
provide a solution.
