Naslov
Laser assisted tunneling in a Tonks–Girardeau gas

Autori
Lelas, Karlo ; Drpić, Nikola ; Dubček, Tena ; Jukić, Dario ; Pezer, Robert ; Buljan, Hrvoje

Izvornik
New journal of physics (1367-2630) 18 (2016); 095002, 10

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
synthetic gauge fields ; optical lattices ; hard core bosons

Sažetak
We investigate the applicability of laser assisted tunneling in a strongly interacting one-dimensional (1D) Bose gas (the Tonks– Girardeau gas) in optical lattices. We find that the stroboscopic dynamics of the Tonks–Girardeau gas in a continuous Wannier– Stark- ladder potential, supplemented with laser assisted tunneling, effectively realizes the ground state of 1D hard-core bosons in a discrete lattice with nontrivial hopping phases. We compare observables that are affected by the interactions, such as the momentum distribution, natural orbitals and their occupancies, in the time-dependent continuous system, to those of the ground state of the discrete system. Stroboscopically, we find an excellent agreement, indicating that laser assisted tunneling is a viable technique for realizing novel ground states and phases with hard- core 1D Bose gases.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA