616 citations · 5.1k across the 54 of their papers we have counts for
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Mediated interactions between Fermi polarons and the role of impurity quantum statistics
Cosetta Baroni, Bo Huang, Isabella Fritsche +7
The notion of quasi-particles is essential for understanding the behaviour of complex many-body systems. A prototypical example of a quasi-particle, a polaron, is an impurity stron…
Massive superfluid vortices and vortex necklaces on a planar annulus
Matteo Caldara, Andrea Richaud, Massimo Capone +1
We study a superfluid in a planar annulus hosting vortices with massive cores. An analytical point-vortex model shows that the massive vortices may perform radial oscillations on t…
Dynamics of a massive superfluid vortex in confining potentials
Andrea Richaud, Pietro Massignan, Vittorio Penna +1
We study the motion of a superfluid vortex in condensates having different background density profiles, ranging from parabolic to uniform. The resulting effective point-vortex mode…
Repulsive Fermi and Bose Polarons in Quantum Gases
Francesco Scazza, Matteo Zaccanti, Pietro Massignan +2
Polaron quasiparticles are formed when a mobile impurity is coupled to the elementary excitations of a many-particle background. In the field of ultracold atoms, the study of the a…
Strongly interacting impurities in a dilute Bose condensate
Nikolay Yegovtsev, Pietro Massignan, Victor Gurarie
An impurity in a Bose gas is commonly referred to as Bose polaron. For a dilute Bose gas its properties are expected to be universal, that is dependent only on a few parameters cha…
Renormalization group study of Bose polarons
Felipe Isaule, Ivan Morera, Pietro Massignan +1
We study the properties of a single impurity in a dilute Bose gas, a Bose polaron, using the functional renormalization group. We use an ansatz for the effective action motivated b…