66 citations · 126 across the 7 of their papers we have counts for
7 papers
The role of non-Markovian dissipation in quantum phase transitions: tricriticality, spin squeezing, and directional symmetry breaking
Baptiste Debecker, Lukas Pausch, Jonathan Louvet +3
Understanding how to control phase transitions in quantum systems is at the forefront of research for the development of new quantum materials and technologies. Here, we study how…
How to seed ergodic dynamics of interacting bosons under conditions of many-body quantum chaos
Lukas Pausch, Edoardo G. Carnio, Andreas Buchleitner +1
We demonstrate how the initial state of ultracold atoms in an optical lattice controls the emergence of ergodic dynamics as the underlying spectral structure is tuned into the quan…
Dissipative phase transition: from qubits to qudits
Lukas Pausch, François Damanet, Thierry Bastin +1
We investigate the fate of dissipative phase transitions in quantum many-body systems when the individual constituents are qudits (-level systems) instead of qubits. As an examp…
Many-body interference at the onset of chaos
Eric Brunner, Lukas Pausch, Edoardo G. Carnio +3
We unveil the signature of many-body interference across dynamical regimes of the Bose-Hubbard model. Increasing the particles' indistinguishability enhances the temporal fluctuati…
Optimal route to quantum chaos in the Bose-Hubbard model
Lukas Pausch, Andreas Buchleitner, Edoardo G. Carnio +1
The dependence of the chaotic phase of the Bose-Hubbard Hamiltonian on particle number , system size and particle density is investigated in terms of spectral and eigenstate…
Chaos in the Bose-Hubbard model and random two-body Hamiltonians
Lukas Pausch, Edoardo G. Carnio, Andreas Buchleitner +1
We investigate the chaotic phase of the Bose-Hubbard model [L. Pausch et al, Phys. Rev. Lett. 126, 150601 (2021)] in relation to the bosonic embedded random matrix ensemble, which…
Chaos and ergodicity across the energy spectrum of interacting bosons
Lukas Pausch, Edoardo G. Carnio, Alberto Rodríguez +1
We identify the chaotic phase of the Bose-Hubbard Hamiltonian by the energy-resolved correlation between spectral features and structural changes of the associated eigenstates as e…