267 citations · 1.4k across the 30 of their papers we have counts for
30 papers
Observation of Temperature Effects on False Vacuum Decay in Atomic Quantum Gases
Riccardo Cominotti, Cosetta Baroni, Chiara Rogora +5
Temperature plays a crucial role in metastable phenomena, not only by contributing to determine the state (phase) of a system, but also ruling the decay probability to more stable…
Synchronization in rotating supersolids
Elena Poli, Andrea Litvinov, Eva Casotti +6
Synchronization is ubiquitous in nature at various scales and fields. This phenomenon not only offers a window into the intrinsic harmony of complex systems, but also serves as a r…
Progress toward a zero-magnetic-field environment for ultracold-atom experiments
Chiara Rogora, Riccardo Cominotti, Cosetta Baroni +4
The minimization of the magnetic field plays a crucial role in ultracold gas research. For instance, the contact interaction dominates all the other energy scales in the zero magne…
Ultracold atomic spin mixtures in ultrastable magnetic field environments
Riccardo Cominotti, Chiara Rogora, Alessandro Zenesini +2
Ultracold atomic spin mixtures develop rich and intriguing magnetic properties when an external radiation coherently couples different spin states. In particular, the coupled mixtu…
Observation of false vacuum decay via bubble formation in ferromagnetic superfluids
Alessandro Zenesini, Anna Berti, Riccardo Cominotti +7
In quantum field theory, the decay of an extended metastable state into the real ground state is known as ``false vacuum decay'' and it takes place via the nucleation of spatially…
Vortices in dipolar Bose-Einstein condensates
Thomas Bland, Giacomo Lamporesi, Manfred J. Mark +1
Quantized vortices are the hallmark of superfluidity, and are often sought out as the first observable feature in new superfluid systems. Following the recent experimental observat…
Ferromagnetism in an extended coherently-coupled atomic superfluid
Riccardo Cominotti, Anna Berti, Clement Dulin +6
Ferromagnetism is an iconic example of a first-order phase transition taking place in spatially extended systems and is characterized by hysteresis and the formation of domain wall…
Mass-driven vortex collisions in flat superfluids
Andrea Richaud, Giacomo Lamporesi, Massimo Capone +1
Quantum vortices are often endowed with an effective inertial mass, due, for example, to massive particles in their cores. Such "massive vortices" display new phenomena beyond the…
Observation of vortices and vortex stripes in a dipolar Bose-Einstein condensate
Lauritz Klaus, Thomas Bland, Elena Poli +6
Quantized vortices are the prototypical feature of superfluidity. Pervasive in all natural systems, vortices are yet to be observed in dipolar quantum gases. Here, we exploit the a…
Observation of Massless and Massive Collective Excitations with Faraday Patterns in a Two-Component Superfluid
Riccardo Cominotti, Anna Berti, Arturo Farolfi +5
We report on the experimental measurement of the dispersion relation of the density and spin collective excitation modes in an elongated two-component superfluid of ultracold boson…
Manipulation of an elongated internal Josephson junction of bosonic atoms
A. Farolfi, A. Zenesini, R. Cominotti +4
We report on the experimental characterization of a spatially extended Josephson junction realized with a coherently-coupled two-spin-component Bose-Einstein condensate. The cloud…
Quantum-torque-induced breaking of magnetic interfaces in ultracold gases
Arturo Farolfi, Alessandro Zenesini, Dimitris Trypogeorgos +6
A rich variety of physical effects in spin dynamics arises at the interface between different magnetic materials. Engineered systems with interlaced magnetic structures have been u…
Single-shot reconstruction of the density profile of a dense atomic gas
C. Mordini, D. Trypogeorgos, L. Wolswijk +2
Partial transfer absorption imaging (PTAI) of ultracold atoms allows for repeated and minimally-destructive measurements of an atomic ensemble. Here, we present a reconstruction te…
Measurement of the Canonical Equation of State of a Weakly Interacting 3D Bose Gas
C. Mordini, D. Trypogeorgos, A. Farolfi +4
Using a multiple-image reconstruction method applied to a harmonically trapped Bose gas, we determine the equation of state of uniform matter across the critical transition point,…
Observation of magnetic solitons in two-component Bose-Einstein condensates
A. Farolfi, D. Trypogeorgos, C. Mordini +2
We experimentally investigate the dynamics of spin solitary waves (magnetic solitons) in a harmonically trapped, binary superfluid mixture. We measure the in-situ density of each p…
A Sideband-Enhanced Cold Atomic Source For Optical Clocks
Matteo Barbiero, Marco G. Tarallo, Davide Calonico +3
We demonstrate the enhancement and optimization of a cold strontium atomic beam from a two-dimensional magneto-optical trap (2D-MOT) transversely loaded from a collimated atomic be…
Design and characterisation of a compact magnetic shield for ultracold atomic gas experiments
Arturo Farolfi, Dimitrios Trypogeorgos, Giacomo Colzi +3
We report on the design, construction, and performance of a compact magnetic shield that facilitates a controlled, low-noise environment for experiments with ultracold atomic gases…
Optical visibility and core structure of vortex filaments in a bosonic superfluid
Franco Dalfovo, Russell N. Bisset, Carmelo Mordini +2
We use optical images of a superfluid consisting of a weakly interacting Bose-Einstein condensate of sodium atoms to investigate the structure of quantized three-dimensional vortex…
Production of large Bose-Einstein condensates in a magnetic-shield-compatible hybrid trap
Giacomo Colzi, Eleonora Fava, Matteo Barbiero +3
We describe the production of large Bose-Einstein condensates in a hybrid trap characterized by a weak magnetic field quadrupole and a tightly focused infrare…
Observation of Spin Superfluidity in a Bose Gas Mixture
E. Fava, T. Bienaimé, C. Mordini +5
The spin dynamics of a harmonically trapped Bose-Einstein condensed binary mixture of sodium atoms is experimentally investigated at finite temperature. In the collisional regime t…
Observation of a Spinning Top in a Bose-Einstein Condensate
R. N. Bisset, S. Serafini, E. Iseni +5
Boundaries strongly affect the behavior of quantized vortices in Bose-Einstein condensates, a phenomenon particularly evident in elongated cigar-shaped traps where vortices tend to…
Vortex reconnections and rebounds in trapped atomic Bose--Einstein condensates
Simone Serafini, Luca Galantucci, Elena Iseni +6
Reconnections and interactions of filamentary coherent structures play a fundamental role in the dynamics of fluids, plasmas and nematic liquid crystals. In fluids, vortex reconnec…
Spin-Dipole Oscillation and Polarizability of a Binary Bose-Einstein Condensate near the Miscible-Immiscible Phase Transition
Tom Bienaimé, Eleonora Fava, Giacomo Colzi +6
We report on the measurement of the spin-dipole (SD) polarizability and of the frequency of the SD oscillation of a two-component Bose-Einstein condensate of sodium atoms occupying…
Creation and counting of defects in a temperature quenched Bose-Einstein Condensate
Simone Donadello, Simone Serafini, Tom Bienaimé +3
We study the spontaneous formation of defects in the order parameter of a trapped ultracold bosonic gas while crossing the critical temperature for Bose-Einstein Condensation (BEC)…