The "International Workshop on Dynamical Decoupling (IWODD)" now has a web site with information on the conference Oct 5-6 in Boulder, CO:
Dynamical decoupling techniques show the potential to dramatically suppress errors in quantum information and quantum control systems. To date, research in this area has been scattered between magnetic resonance experimentalists and quantum information theorists. This workshop aims to foster new relationships between experimental and theoretical researchers in an effort to speed technical developments and to promote the adoption of dynamical decoupling techniques across a variety of qubit technologies. Follow this link to see the list of invited speakers which includes Erwin Hahn, who pioneered the spin echo, as a keynote speaker.
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more like: don't shoot your iwodd
I hope decoupling isn't an idea like "decoherence". Some of you may remember, as e.g. from Open forum, I don't think much of the IMHO flawed, circular "argument" that decoherence solves the collapse problem. BTW it isn't too late to add another comment there!
BTW, I think there should be an "honest density matrix" as a conceptual tool. It would show the distribution of possible wave functions directly. It wouldn't show the distribution of observable "outcomes" since the latter only happen because something supervenes to cause collapse. (No, not the other way around!)
This Link is relevant and very interesting, about "Bang-bang decoupling used in quantum optics for the first time." Not the universe's "big bang" ;-)
Dynamical Decoupling (DD) is a technique by which unwanted coupling of a qubit/qubit system to the environment can be effectively time-reversed using particular coherent control techniques. Bang-bang control is an example of a DD technique.
For another example I will shamelessly point interested people to
http://www.nature.com/nature/journal/v458/n7241/full/nature07951.html