Re: poly: quantum catalysis [last edit]

> > > http://xxx.lanl.gov/abs/quant-ph/990507
> > And that should have been

http://xxx.lanl.gov/abs/quant-ph/9905071

     We demonstrate that local transformations on a composite quantum
     system can be enhanced in the presence of certain entangled states.
     These extra states act much like catalysts in a chemical reaction:
     they allow otherwise impossible local transformations to be
     realised, without being consumed in any way. In particular, we show
     that this effect can considerably improve the efficiency of
     entanglement concentration procedures for finite states.
Received on Wed Jun 2 16:03:26 1999