Novel Polaron State for Single Impurity in a Bosonic Mott Insulator

Details Novel Polaron State for Single Impurity in a Bosonic Mott Insulator Novel Polaron State for Single Impurity in a Bosonic Mott Insulator

2011-10-28

arxiv.org/abs/1110.6466v1

Physics

Condensed Matter

Quantum Gases

Scientific paper

We show that a single impurity embedded in a cold atom bosonic Mott insulator leads to a novel polaron that exhibits correlated motion with an effective mass and a linear size that nearly diverge at critical value of the on-site impurity-boson interaction strength. Cold atom technology can tune the polaron's properties and break up the composite particle into a deconfined impurity-hole and boson particle state at finite, controllable polaron momentum.

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