1 citations · 1 across the 4 of their papers we have counts for
4 papers
Optimal observables for quantum-enhanced sensing and applications in a Floquet time crystal sensor
M. A. Manya, Andrei Tsypilnikov, Fernando Iemini
In this work, we discuss how to determine and implement feasible optimal observables for a metrology protocol that saturates the quantum Fisher information (QFI) bound. In particul…
Sensing ac fields with quantum many-body scars
Matheus Fibger, Andrei Tsypilnikov, Thiago R. de Oliveira +1
Quantum many-body scars (MBS) exhibit weak ergodicity breaking and long-lived coherent dynamics within an otherwise thermal spectrum. We investigate their metrological properties u…
Exact analysis of AC sensors based on Floquet time crystals
Andrei Tsypilnikov, Matheus Fibger, Fernando Iemini
We discuss the behavior of general Floquet time crystals (FTCs), including prethermal ones, in closed systems acting as AC sensors. We provide an analytical treatment of their quan…
Magnon spectrum in two- and three- dimensional skyrmion crystals
D. N. Aristov, A. V. Tsypilnikov
We study the low-energy magnon spectrum of the skyrmion crystal (SkX) ground state, appearing in two-dimensional ferromagnet with Dzyaloshinskii-Moriya interaction and magnetic fie…