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arXiv · 1609.03553

Laser assisted tunneling in a Tonks-Girardeau gas

K. Lelas·N. Drpić·T. Dubček·D. Jukić·R. Pezer·H. Buljan
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Abstract

We investigate the applicability of laser assisted tunneling in a strongly interacting one-dimensional 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 one-dimensional 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 one-dimensional Bose gases.

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K. Lelas, N. Drpić, T. Dubček, D. Jukić, R. Pezer, H. Buljan. 2016-09-12. Laser assisted tunneling in a Tonks-Girardeau gas. https://doi.org/10.1088/1367-2630%2F18%2F9%2F095002

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