A Fundamental Lower Bound of Actuating Energy for Broadband Photon Switching

Masahiro Hotta

doi:10.1016/j.physleta.2008.02.058

paper

A Fundamental Lower Bound of Actuating Energy for Broadband Photon Switching

arXiv:0711.1858 · doi:10.1016/j.physleta.2008.02.058

Abstract

We derive a universal lower bound of actuating energy $E_{s}$ for broadband photon switching by using an uncertainty relation between time and the negative energy density of quantum fields. We find that broadband photon switching between perfect reflection and perfect transmission over a time $t_{s}$ should satisfy $E_{s} \geq \frac{ℏ}{6 π t _{s}}$ .

To be published in Phys.Lett.A

A Fundamental Lower Bound of Actuating Energy for Broadband Photon Switching

Abstract

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