3 papers
quant-ph2026
Fibonacci Steady-States and Persistent Oscillations in an Ordered Multimode Dicke Model
Miriam J. Leonhardt, Kai Müller, Oliver Lunt +1
Ultracold atoms in multimode optical cavities provide a rich testbed for many-body phenomena enabled by light-mediated interactions. Recent experiments include realizations of spin…
quant-ph2025
Emergent random matrix universality in quantum operator dynamics
Oliver Lunt, Thomas Kriecherbauer, Kenneth T-R McLaughlin +1
The high complexity of many-body quantum dynamics means that essentially all approaches either exploit special structure or are approximate in nature. One such approach--the memory…
quant-ph2025
Approximation theory for Green's functions via the Lanczos algorithm
Gabriele Pinna, Oliver Lunt, Curt von Keyserlingk
It is known that Green's functions can be expressed as continued fractions; the content at the -th level of the fraction is encoded in a coefficient , which can be recursiv…