9 papers
Temperature driven false vacuum decay in coherently coupled Bose superfluids
Paniyanchatha Moolayil Sivasankar, Franco Dalfovo, Alessio Recati +1
The relaxation of a quantum field from a metastable state (false vacuum) to a stable one (true vacuum), also known as false vacuum decay, is a fundamental problem in quantum field…
Scale invariance of the polaron energy at the Mott-superfluid critical point
Matija Äufar, Ragheed Alhyder, C. J. Bradly +4
Continuous quantum phase transitions are characterized by an order parameter and correlation functions that are often challenging to access experimentally or in direct numerical si…
Sound propagation in striped supersolid cold gases at zero temperature
Elena Poli, Giovanni I. Martone, Sandro Stringari +1
We present a unified hydrodynamic approach for the sound propagation in the stripe phases realized in ultracold dipolar gas and spin-orbit-coupled BEC platforms at zero temperature…
Extracting Many-Body Quantum Resources within One-Body Reduced Density Matrix Functional Theory
Carlos L. Benavides-Riveros, Tomasz Wasak, Alessio Recati
Quantum Fisher information (QFI) is a central concept in quantum sciences used to quantify the ultimate precision limit of parameter estimation, detect quantum phase transitions, w…
Anomalous Doppler effect in two-component Bose-Einstein condensates
Tomasz ZawiÅlak, Sandro Stringari, Alessio Recati
We show that two-component Bose-Einstein condensed mixtures, in presence of a persistent current, exhibit a non trivial Doppler shift of the sound velocities. The peculiarity is du…
Many-body theory of false vacuum decay in quantum spin chains
Christian Johansen, Alessio Recati, Iacopo Carusotto +1
In this work we theoretically investigate the false vacuum decay process in a ferromagnetic quantum spin-1/2 chain. We develop a many-body theory describing the nucleation and the…