Enhancement of the Bose glass phase in the presence of an artificial gauge field Article Swipe
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· 2019
· Open Access
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· DOI: https://doi.org/10.1103/physreva.99.053610
· OA: W2945472162
We examine the effects of an artificial gauge field and finite temperature in\na two-dimensional disordered Bose-Hubbard model. The disorder considered is\ndiagonal and quenched in nature. A signature of disorder in the Bose-Hubbard\nmodel is the Bose glass phase. Our work shows that the introduction of an\nartificial gauge field enhances the domain of the Bose glass phase in the phase\ndiagram. Most importantly, the size of the domain can be tuned with the\nstrength of the artificial gauge field. The introduction of the finite\ntemperature effects is essential to relate theoretical results with the\nexperimental realizations. For our studies we use the single site and cluster\nGutzwiller mean-field theories. The results from the latter are more reliable\nas it better describes the correlation effects. Our results show that the Bose\nglass phase has a larger domain with the latter method.\n
