Quantum Behavior of a Heavy Impurity Strongly Coupled to a Bose Gas
Quantum Behavior of a Heavy Impurity Strongly Coupled to a Bose Gas
We investigate the problem of an infinitely heavy impurity interacting with a dilute Bose gas at zero temperature. When the impurity-boson interactions are short-ranged, we show that boson-boson interactions induce a quantum blockade effect, where a single boson can effectively block or screen the impurity potential. Since this behavior depends …