7 papers
Hidden Ergodic Relaxation in the Quench Dynamics of a Bichromatic Mott Lattice
Áttis V. M. Marino, Rhombik Roy, M. A. Caracanhas +5
We investigate the nonequilibrium dynamics of strongly interacting bosons in a finite bichromatic Mott lattice following a sudden quench of the secondary lattice amplitude. The coe…
Entropy Signatures of Collective Modes and Vortex Dynamics in Rotating Two--Dimensional Bose--Einstein Condensates
L. A. Machado, N. D. Chavda, B. Chatterjee +4
We investigate the nonequilibrium dynamics of a two-dimensional rotating Bose gas confined in a symmetric anharmonic trap, employing the multiconfigurational time-dependent Hartree…
Classical field simulation of vortex lattice melting in a two-dimensional fast rotating Bose gas
Sálvio Jacob Bereta, Lucas Madeira, Mônica A. Caracanhas +2
We present a classical field simulation study of the thermal melting of a two-dimensional vortex lattice in a rotating Bose gas, focusing on the role of finite-size effects on the…
Stability and Decay of Macrovortices in Rotating Bose Gases Beyond Mean Field
Paolo Molignini, M. A. Caracanhas, V. S. Bagnato +1
We study the formation, stability, and decay of macrovortices in a rotating Bose gas confined by a Mexican-hat potential with a multiconfigurational ansatz. By systematically inclu…
Dynamical localization of interacting ultracold atoms in one-dimensional quasi-periodic potentials
Attis V. M. Marino, M. A. Caracanhas, V. S. Bagnato +1
We present numerically exact non-equilibrium dynamics of a one-dimensional Bose gas in quasi-periodic lattice that plays an intermediate role between the long-ranged order and trul…
Spectroscopy of collective modes in a Bose-Einstein condensate: From single to double excitation periods
Leandro A. Machado, Lucas Madeira, Mônica A. Caracanhas +1
Collective modes are coherent excitations in Bose-Einstein condensates (BECs), and their study provides insight into the macroscopic quantum phenomena that govern these systems. Co…