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…
Self-adjoint extensions of -photon light-matter Hamiltonians
Felix Fischer, Felix Knapp, Daniel Burgarth +1
Multiphoton light-matter interactions, in which a bosonic mode exchanges excitations at a time with a quantum system, are a source of genuine nonlinearity in quantum optics and…
Essentially singular limits of Jacobi operators and applications to higher-order squeezing
Felix Fischer, Daniel Burgarth, Davide Lonigro
We study a family of Jacobi operators in which the diagonal entries are multiplied by a coupling parameter . Under suitable conditions, the operator is self-adjoint for eve…