3 papers
math-ph2025
A ballistic upper bound on the accumulation of bosonic on-site energies
Tomotaka Kuwahara, Marius Lemm, Carla Rubiliani
In this note, we study transport properties of the dynamics generated by translation-invariant and possibly long-ranged Hamiltonians of Bose-Hubbard type. For translation-invariant…
quant-ph2025
Spectral Small-Incremental-Entangling: Breaking Quasi-Polynomial Complexity Barriers in Long-Range Interacting Systems
Donghoon Kim, Yusuke Kimura, Hugo Mackay +6
How the detailed structure of quantum complexity emerges from quantum dynamics remains a fundamental challenge highlighted by advances in quantum simulators and information process…
math-ph2025
On the quantum dynamics of long-ranged Bose-Hubbard Hamiltonians
Marius Lemm, Carla Rubiliani, Jingxuan Zhang
We study the quantum dynamics generated by Bose-Hubbard Hamiltonians with long-ranged (power law) terms. We prove two ballistic propagation bounds for suitable initial states: (i)…