Kavli Affiliate: Felix Fischer | First 5 Authors: Felix Fischer, Daniel Burgarth, Davide Lonigro, , | Summary: When numerically simulating the unitary time evolution of an infinite-dimensional quantum system, one is usually led to treat the Hamiltonian $H$ as an ”infinite-dimensional matrix” by expressing it in some orthonormal basis of the Hilbert space, and then […]
Continue.. Quantum particle in the wrong box (or: the perils of finite-dimensional approximations)