Damped vacuum states of light
Journal of Optics
This is the author accepted manuscript. The final version is available from IOP Publishing via the DOI in this record.
Reason for embargo
We consider one-dimensional propagation of quantum light in the presence of a block of material, with a full account of dispersion and absorption. The electromagnetic zero-point energy for some frequencies is damped (suppressed) by the block below the free-space value, while for other frequencies it is increased. We also calculate the regularized (Casimir) zero-point energy at each frequency and find that it too is damped below the free-space value (zero) for some frequencies. The total Casimir energy is positive.
Vol. 18, No. 9, pp. 095201 -