I went looking for temporal anomalies related to casimir effect. This link, http://www.andersoninstitute.com/casimir-effect.html is an excellent review and update but did not lend much support to my quest despite the title. There was also an important reminder regarding the real world limits on the effect. [snip]above the plasma frequency metals become transparent to photons (such as x-rays), and dielectrics show a frequency-dependent cutoff as well. This frequency dependence acts as a natural regulator. There are a variety of bulk effects in solid state physics, mathematically very similar to the Casimir effect, where the cutoff frequency comes into explicit play to keep expressions finite. (These are discussed in greater detail in Landau and Lifshitz, "Theory of Continuous Media".) [/snip]
Fran

