4 citations · 7 across the 5 of their papers we have counts for
3 papers · 1 filter
When is a bosonic operator a Hamiltonian?
Felix Fischer, Hermann Schulz-Baldes, Daniel Burgarth +1
Hermitian polynomials in the quadrature operators and are the basic ingredients of continuous-variable quantum information, and increasingly exotic ones are now routinely e…
Finite-dimensional approximations of generalized squeezing
Sahel Ashhab, Felix Fischer, Davide Lonigro +2
We show unexpected behaviour in simulations of generalized squeezing performed with finite-dimensional truncations of the Fock space: even for extremely large dimension of the stat…
Quantum particle in the wrong box (or: the perils of finite-dimensional approximations)
Felix Fischer, Daniel Burgarth, Davide Lonigro
When numerically simulating the unitary time evolution of an infinite-dimensional quantum system, one is usually led to treat the Hamiltonian as an "infinite-dimensional matrix…