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Effects of effective attractive multi-body interaction on quantum phase and transport dynamics of a strongly correlated bosonic gas across the superfluid to Mott insulator transition

孙剑芳, 崔国栋, 姜伯楠 +2 more

中国物理B：英文版Jan 1, 20130 citations

Superfluid-Insulator Transition in a Moving System of Interacting Bosons

Anatoli Polkovnikov

Bulletin of the American Physical SocietyMay 20, 20051 citation

Trap-modulation spectroscopy of the Mott-insulator transition in optical lattices

Hans Lignier, Alessandro Zenesini, D. Ciampini +5 more

We discuss a technique to probe the properties of an interacting cold atomic gas that can be viewed as a dynamical compressibility measurement. We apply this technique to the study of the superfluid-to-Mott-insulator quantum phase transition in one and three dimensions for a bosonic gas trapped in an optical lattice. Excitations of the system are detected by time-of-flight measurements. The experimental data for the one-dimensional case are in good agreement with the results of a time-dependent density-matrix-renormalization-group calculation.We discuss a technique to probe the properties of an interacting cold atomic gas that can be viewed as a dynamical compressibility measurement. We apply this technique to the study of the superfluid-to-Mott-insulator quantum phase transition in one and three dimensions for a bosonic gas trapped in an optical lattice. Excitations of the system are detected by time-of-flight measurements. The experimental data for the one-dimensional case are in good agreement with the results of a time-dependent density-matrix-renormalization-group calculation.

arXiv:0812.3005Physical Review AApr 2, 200930 citations

Effects of effective attractive multi-body interaction on quantum phase and transport dynamics of a strongly correlated bosonic gas across the superfluid to Mott insulator transition

Jian-Fang Sun, Guo-Dong Cui, Bo-Nan Jiang +2 more

We theoretically investigate quantum phases and transport dynamics of ultracold atoms trapped in an optical lattice in the presence of effective multi-body interaction. When a harmonic external potential is added, several interesting phenomena are revealed, such as the broadening and the emergence of a central insulator plateau and the phase transition between superfluid and Mott insulator phase. We also study the transport of the system which runs across the superfluid—insulator transition after ramping up the lattice, and predict a slower relaxation which is attributed to the influence of the multi-body interaction on the mass transport.We theoretically investigate quantum phases and transport dynamics of ultracold atoms trapped in an optical lattice in the presence of effective multi-body interaction. When a harmonic external potential is added, several interesting phenomena are revealed, such as the broadening and the emergence of a central insulator plateau and the phase transition between superfluid and Mott insulator phase. We also study the transport of the system which runs across the superfluid—insulator transition after ramping up the lattice, and predict a slower relaxation which is attributed to the influence of the multi-body interaction on the mass transport.

Chinese Physics BNov 1, 20130 citations

Superfluid-to-Mott insulator transition of bosons with local three-body interactions

Jereson Silva-Valencia, André M. C. Souza

The European Physical Journal BMay 1, 201218 citations

Cooling and Near-equilibrium Dynamics of Atomic Gases across the Superfluid-Mott Insulator Transition

Xibo Zhang, Chen-Lung Hung, Nathan Gemelke +1 more

Bulletin of the American Physical SocietyNov 13, 20091 citation

Utilizing nonequilibrium effects to probe the Mott-insulator-superfluid transition of a trapped gas of interacting bosons

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