Fig. 4: Emergence of Floquet Yu-Shiba-Rusinov States.
From: Emergence and manipulation of non-equilibrium Yu-Shiba-Rusinov states
a Floquet local density of states (LDOS) NFl as a function of energy for a continuously rotating spin with driving frequency ω0, with l = 2 as the cutoff in the Floquet–Sambe matrix. Note that the energy splitting of the Yu–Shiba–Rusinov (YSR) states (see red arrow) is given by ω0. The colorbar represents the normalized Floquet LDOS. Time evolution of b the non-equilibrium local density of states Nneq(t, ω) summed over both spin orientations, and c the spin-resolved Nneq(↑, t, ω) and d Nneq(↓, t, ω) for ω0 = 0.2te/ℏ, corresponding to T = 10πτe. The colorbar next to c represents the normalized Nneq in b–d. Here, the magnetic coupling J = 2.8te > Jc is larger than the critical value Jc, where a phase transition occurs. The results for Nneq were obtained for a 24 × 24 site real space system.
