activity
20102026
most citedOn Nelson-type Hamiltonians and abstract boundary conditions

34 citations · 223 across the 28 of their papers we have counts for

collaborators
Showing 2020Show all

2 papers · 1 filter

math-ph2020

Dynamics of a tracer particle interacting with excitations of a Bose-Einstein condensate

Jonas Lampart, Peter Pickl

We consider the quantum dynamics of a large number of interacting bosons coupled a tracer particle, i.e. a particle of another kind, on a torus. We assume that in the initial s…

math.FA2020★ 4 cited

The resolvent of the Nelson Hamiltonian improves positivity

Jonas Lampart

We prove that the resolvent of the renormalised Nelson Hamiltonian at fixed total momentum P improves positivity in the (momentum) Fock-representation, for every P. Our argument is…