129 citations · 395 across the 18 of their papers we have counts for
18 papers
Rotor/spin-wave theory for quantum spin models with U(1) symmetry
Tommaso Roscilde, Tommaso Comparin, Fabio Mezzacapo
The static and dynamics properties of finite-size lattice quantum spin models which spontaneously break a continuous symmetry in the thermodynamic limit are of central impor…
Scalable spin squeezing in a dipolar Rydberg atom array
Guillaume Bornet, Gabriel Emperauger, Cheng Chen +11
The standard quantum limit bounds the precision of measurements that can be achieved by ensembles of uncorrelated particles. Fundamentally, this limit arises from the non-commuting…
Entangling dynamics from effective rotor/spin-wave separation in U(1)-symmetric quantum spin models
Tommaso Roscilde, Tommaso Comparin, Fabio Mezzacapo
The non-equilibrium dynamics of quantum spin models is a most challenging topic, due to the exponentiality of Hilbert space; and it is central to the understanding of the many-body…
Multipartite entangled states in dipolar quantum simulators
Tommaso Comparin, Fabio Mezzacapo, Tommaso Roscilde
The scalable production of multipartite entangled states in ensembles of qubits is a fundamental function of quantum devices, as such states are an essential resource both for fund…
Scalable spin squeezing from spontaneous breaking of a continuous symmetry
Tommaso Comparin, Fabio Mezzacapo, Martin Robert-de-Saint-Vincent +1
Spontaneous symmetry breaking (SSB) is a property of Hamiltonian equilibrium states which, in the thermodynamic limit, retain a finite average value of an order parameter even afte…
Measurable fractional spin for quantum Hall quasiparticles on the disk
Tommaso Comparin, Alvin Opler, Elia Macaluso +3
We study the spin of the localised quasiparticle excitations of lowest-Landau-level quantum Hall states defined on a disk. The spin that we propose satisfies the spin-statistics re…