Magnetically generated spin-orbit coupling for ultracold atoms with slowly varying periodic driving
Year: 2024
Type: article
Abstract: The spin-orbit coupling (SOC) affecting the center of mass of ultracold atoms can be simulated using a properly chosen periodic sequence of magnetic pulses. Yet such a method is generally accompanied by micromotion, which hinders precise control of atomic dynamics, thus complicating practical applications. Here we show how to bypass the micromotion emerging in the magnetically induced SOC by properly switching on and off the oscillating magnetic fields at the initial and final times. We consider the exact dynamics of the system and demonstrate that the overall dynamics can be immune to the micromotion. The exact dynamics is shown to agree well with the evolution of the system described by the slowly changing effective Floquet Hamiltonian including the SOC term. The agreement is shown to be best when the phase of the periodic driving takes a specific value for which the effect of the spin-orbit coupling is maximum.
Source: Physical Review A
Institutions: Vilnius University, Institute of Physics
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G4559066111, G4801567649, G6742565944
OpenAlex ID: W4399174542