3 papers
quant-ph2024
Nonperturbative decay of bipartite discrete time crystals
Lennart Fernandes, Joseph Tindall, Dries Sels
We study prethermal time-crystalline order in periodically driven quantum Ising models on disorder-free decorated lattices. Using a tensor network ansatz for the state which reflec…
cond-mat.quant-gas2024
Analog Hawking radiation from a spin-sonic horizon in a two-component Bose-Einstein condensate
Anna Berti, Lennart Fernandes, Salvatore Giulio Butera +3
We theoretically study stimulated and spontaneous Hawking emission from an analog horizon for spin modes in a two-component Bose-Einstein condensate, both with and without a cohere…
physics.soc-ph2020
Effect of segregation on inequality in kinetic models of wealth exchange
Lennart Fernandes, Jacques Tempere
Empirical distributions of wealth and income can be reproduced using simplified agent-based models of economic interactions, analogous to microscopic collisions of gas particles. B…