Naslov
SOME QUANTUM MECHANICAL ASPECTS OF FRICTIONAL FORCE BETWEEN PARALLEL METALLIC SLABS

Autori
Despoja, Vito ; Echenique, Pedro ; Šunjić, Marijan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, pp prezentacija, znanstveni

Skup
Passion for knowledge-Passion for electrons

Mjesto i datum
Donostia-San Sebastián, Španjolska, 27.09.2010. - 01.10.2010

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
Quantum friction; surface plasmons

Sažetak
Energy of a charged or neutral particle (e.g. electron or atom) at rest or slowly moving close to the dielectric surface, e.g. parallel to a metallic slab, is shifted downward, because of its interaction with the quantum mechanical charge density fluctuations in the system via nonretarded Coulomb interaction (at close distances), leading to dynamical image or van der Waals potentials, respectively. Parallel velocity leads to a typical Doppler shifted frequency in the resulting expressions. For higher velocities real electronic transitions in the slab can occur and a moving particle starts losing kinetic energy and parallel momentum. In the last decade much attention has been paid to a similar dissipative phenomenon, namely frictional forces between two dielectric slabs moving at parallel velocity, at zero temperature. In this situation an obvious question can be posed: Is this process physically feasible (since translation symmetry is not broken), and if it is, which mechanism is responsible for friction?

Izvorni jezik
Engleski

POVEZANOST RADA