Tootfinder

Non-unitary Time Evolution via the Chebyshev Expansion Method
\'Aron Holl\'o, D\'aniel Varjas, Cosma Fulga, L\'aszl\'o Oroszl\'any, Viktor K\"onye
https://arxiv.org/abs/2510.10643

Non-unitary Time Evolution via the Chebyshev Expansion Method
The Chebyshev expansion method is a well-established technique for computing the time evolution of quantum states, particularly in Hermitian systems with a bounded spectrum. Here, we show that the applicability of the Chebyshev expansion method extends well beyond this constraint: It remains valid across the entire complex plane and is thus suitable for arbitrary non-Hermitian matrices. We identify that numerical rounding errors are the primary source of errors encountered when applying the met…

@… Félicitations! Ça me fait Š nouveau considérer l’idée d’utiliser Cosma avec pandoc-lecturenotes…

@… Félicitations! Ça me fait Š nouveau considérer l’idée d’utiliser Cosma avec pandoc-lecturenotes…