Quantum Chaos in Bose-Hubbard Condensates Requires More Than Three Lattice Sites

Researchers at Ben-Gurion University & Strathclyde found Bose-Hubbard condensates need >3 lattice sites for chaotic dynamics. Semiclassical tomography reveals stability 'islands' within chaotic phase-space, refining understanding of quantum ergodicity.

#QuantumChaos #BoseHubbard #News

Lieb-Robinson Bounds for Bose-Hubbard Hamiltonians: A Simplified Proof

A streamlined proof of polynomial Lieb-Robinson light cones (v~t^(d+ε)) for Bose-Hubbard Hamiltonians is derived via ASTLO methods, showing bounded-density initial states constrain quantum information propagation speed in bosonic lattice systems.

#BoseHubbard #QuantumManyBody #Research

Quantum Chaos in Bose-Hubbard Condensates Requires More Than Three Lattice Sites

Ben-Gurion & Strathclyde researchers show Bose-Hubbard condensates need >3 lattice sites for chaotic dynamics. Semiclassical tomography reveals stable 'islands' within chaotic phase-space, with chaos suppressed near the Gross-Pitaevskii limit.

#BoseHubbard #QuantumChaos #News

Bosonic Quantum Systems Simulation Complexity Reduced from O(D³) to O(D log D) via Tridiagonalization

Bondar & Steuernagel (Tulane) map optomechanical and Bose-Hubbard Hamiltonians to exact tridiagonal matrices, slashing simulation complexity from O(D³) to O(D log D) and enabling accurate symplectic propagators for far larger many-body systems.

#QuantumSimulation #BoseHubbard #News