We study and discuss the extension of the rotating-wave spin$\unicode{x2013}$boson model, together with more general models describing a system$\unicode{x2013}$field coupling with a similar rotating-wave structure, to interactions mediated by possibly singular (non-normalizable) form factors satisfying a weaker growth constraint. To this purpose, a construction of annihilation and creation operators as continuous maps on a scale of Fock spaces, together with a rigorous renormalization procedure, is employed.Comment: 19 page
We propose protocols for the creation of useful entangled states in a system of spins collectively c...
We demonstrate that perturbative algebraic QFT methods, as developed by Fredenhagen and Rejzner, nat...
In the mean-field approximation, the well-known effect of the critical quantum collapse in a 3D gas ...
Generalized spin-boson (GSB) models describe the interaction between a quantum mechanical system and...
We study a class of quantum Hamiltonian models describing a family of $N$ two-level systems (spins) ...
By scrutinizing the singular sector of the Lounesto spinor classification, we investigate the correc...
We discuss some higher-loop studies of renormalization-group flows and fixed points in various quant...
We introduce a new method for analysing the Bose-Hubbard model for an array of bosons with nearest n...
Recently, in the Luttinger liquid phase of the one-dimensional generalized antiferromagnetic Kitaev ...
We present a one-parameter family of large $N$ disordered models, with and without supersymmetry, in...
We consider the one-dimensional local reggeon theory describing the leading pomeron with the conform...
Form factors in the sinh-Gordon model are studied semiclassically for small values of the parameter ...
We study the non-equilibrium dynamics of dipoles confined in multiple stacked two-dimensional layers...
We develop a theory of massive spinning particles interacting with background fields in four spaceti...
We show that two particles interacting via spin exchange exhibit topological features found in one-d...
We propose protocols for the creation of useful entangled states in a system of spins collectively c...
We demonstrate that perturbative algebraic QFT methods, as developed by Fredenhagen and Rejzner, nat...
In the mean-field approximation, the well-known effect of the critical quantum collapse in a 3D gas ...
Generalized spin-boson (GSB) models describe the interaction between a quantum mechanical system and...
We study a class of quantum Hamiltonian models describing a family of $N$ two-level systems (spins) ...
By scrutinizing the singular sector of the Lounesto spinor classification, we investigate the correc...
We discuss some higher-loop studies of renormalization-group flows and fixed points in various quant...
We introduce a new method for analysing the Bose-Hubbard model for an array of bosons with nearest n...
Recently, in the Luttinger liquid phase of the one-dimensional generalized antiferromagnetic Kitaev ...
We present a one-parameter family of large $N$ disordered models, with and without supersymmetry, in...
We consider the one-dimensional local reggeon theory describing the leading pomeron with the conform...
Form factors in the sinh-Gordon model are studied semiclassically for small values of the parameter ...
We study the non-equilibrium dynamics of dipoles confined in multiple stacked two-dimensional layers...
We develop a theory of massive spinning particles interacting with background fields in four spaceti...
We show that two particles interacting via spin exchange exhibit topological features found in one-d...
We propose protocols for the creation of useful entangled states in a system of spins collectively c...
We demonstrate that perturbative algebraic QFT methods, as developed by Fredenhagen and Rejzner, nat...
In the mean-field approximation, the well-known effect of the critical quantum collapse in a 3D gas ...