Steering spin fluctuations in lattice systems via two-tone Floquet engineering
- Resource Type
- Working Paper
- Authors
- Peña, Ruben; Torres, Felipe; Romero, Guillermo
- Source
- Subject
- Quantum Physics
Condensed Matter - Mesoscale and Nanoscale Physics
Condensed Matter - Quantum Gases
- Language
We report on the controlled creation and destruction of antiferromagnetic dimers using two-tone Floquet engineering. We consider a one-dimensional spin-1/2 lattice with periodically modulated bonds using parametric resonances. The stroboscopic dynamics generated from distributed bond modulations lead to pair correlation between spins. Consequently, subharmonic response in local observables breaks discrete time translational symmetry and leads to the emergence of Floquet dynamical dimerisation. We present a protocol allowing the control of local spin-correlated pairs driven by one-period evolution operators, providing significant insight into new nonequilibrium states of matter that can be feasibly implemented in current quantum simulator platforms.
Comment: 14 pages, 7 figures