Naslov
Synthetic Lorentz force in classical atomic gases via Doppler effect and radiation pressure

Autori
Dubček, Tena ; Šantić, Neven ; Aumiler, Damir ; Ban, Ticijana ; Buljan, Hrvoje

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

Skup
School on Nonlinear Dynamics, Dynamical Transitions and Instabilities in Classical and Quantum Systems

Mjesto i datum
Trst, Italija, 13.07.2014. - 01.08.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
sintetska Lorentzova sila; ultrahladni atomski plinovi
(synthetic Lorentz force; ultracold atomic gases)

Sažetak
The quest for synthetic magnetism in quantum degenerate atomic gases is motivated by the research of controllable quantum emulators, which could mimic complex quantum systems. Recent experiments in Bose-Einstein con- densates have produced synthetic magnetic elds by spatially dependent op- tical coupling of the internal atomic states [1, 2]. The mechanism is based upon the analogy between the Aharonov-Bohm phase of charged quantum particles and the Berry phase of atoms adiabatically traversing closed loops in specially tailored laser elds [3]. However, classical (rather than quan- tum degenerate) cold atomic gases have been circumvented in the quest for synthetic magnetism, even though they could emulate in a controllable fash- ion, and in table-top experiments, versatile complex classical systems. One such desirable system for table-top emulation is tokamak plasma. Because of the fairly large atomic velocities, methods based on their adiabatic motion are limited and the desired synthetic magnetic elds should cover larger ar- eas (typically of square millimeter size [4]). On the other hand, schemes for classical gases do not need to be limited by avoiding spontaneous emission. With these guidelines, we present a scheme for obtaining synthetic magnetic elds in classical gases and predict the resulting synthetic Lorentz force on an atomic cloud in motion. Our scheme employs laser-atom interactions and the Doppler e ect to produce a force perpendicular to the velocity of the atoms.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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