Naslov
Quantum optics of dispersive dielectric media

Autori
Lenac, Zdravko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Skup
10th JOINT VACUUM CONFERENCE

Mjesto i datum
Portorož, Slovenija, 28.09.2004. - 02.10.2004

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
surface polariton; Wigner crystal; dispersive dielectric media

Sažetak
We quantize the electromagnetic field in polar medium starting with the fundamental equations of motion. In our model the medium is described bx Lorenz-type dielectric function e(r, w), appropriate e.g. ionic crystals, metals and inert dielectrics. There are no restrictions on the spatial behavior of the dielectric function, i.e. there can be many different polar media with arbitrari shapes. We assume no losses in our system so the dielectric function for the whole space is assumed as real. The quantization procedure is based on an expansion of the total field (transverze and longitudinal) in terms of the coupled (polariton) eigenmodes, and this approach incorporates all previous results derived for similar but restricted systems (e.g. without spatial or frequency dependence of coupled modes). Within the same model, we also quantize the Hamiltonijan of nonretarded electromagnetic field in polar media. Particular attention is paid to the derivation of the ortogonality and closure, which are used in a discussion of the fundamental (equal-time) commutation relations between the conjugate field operators. As an example, we shall apply our theory to the quasy-two-dimensional Wigner crystal, formed by electrons at very low temperature.In particular, we shall discuss the influence of the quantized elctromagnetic field on the dynamics of Wigner electrons, i.e., on the dispersion relation of Wigner phonons.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA