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Article Dans Une Revue New Journal of Physics Année : 2016

Incommensurate phases of a bosonic two-leg ladder under a flux

Résumé

A boson two--leg ladder in the presence of a synthetic magnetic flux is investigated by means of bosonization techniques and Density Matrix Renormalization Group (DMRG). We follow the quantum phase transition from the commensurate Meissner to the incommensurate vortex phase with increasing flux at different fillings. When the applied flux is $\rho \pi$ and close to it, where $\rho$ is the filling per rung, we find a second incommensuration in the vortex state that affects physical observables such as the momentum distribution, the rung-rung correlation function and the spin-spin and charge-charge static structure factors.

Dates et versions

hal-01322889 , version 1 (28-05-2016)

Identifiants

Citer

Edmond Orignac, Roberta Citro, Mario Di Dio, S de Palo, Maria-Luisa Chiofalo. Incommensurate phases of a bosonic two-leg ladder under a flux. New Journal of Physics, 2016, Focus on Strongly Interacting Quantum Gases in One Dimension, A. Del Campo, G. Astrakarchik, A. Minguzzi, E. Wright, M. Olshanii and M. Lewenstein (editors), 18 (5), pp.055017. ⟨10.1088/1367-2630/18/5/055017⟩. ⟨hal-01322889⟩
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