Photon pumping in a weakly-driven quantum cavity-spin system
arXiv:2104.06419 · doi:10.1016/j.aop.2021.168553
Abstract
We investigate the photon pumping effect in a topological model consisting of a periodically driven spin-1/2 coupled to a quantum cavity mode out of the adiabatic limit. In the strong-drive adiabatic limit, a quantized frequency conversion of photons is expected as the temporal analog of the Hall current. We numerically establish a novel photon pumping phenomenon in the experimentally accessible nonadiabatic driving regime for a broad region of the parameter space. The photon frequency conversion efficiency exhibits strong fluctuations and high efficiency that can reach up 80% of the quantized value for commensurate frequency combinations. We link the pumping properties to the delocalization of the corresponding Floquet states which display multifractal behavior as the result of hybridization between localized and delocalized sectors. Finally we demonstrate that the quantum coherence properties of the initial state are preserved during the frequency conversion process in both the strong and ultra-weak-drive limit.
11 pages, 14 Figures, submitted to a special issue of Annals of Physics in honor of P. W. Anderson
References in corpus (13)
- The Quantum Internet
- Photonic quantum technologies
- Anderson Transitions
- Topological characterization of periodically-driven quantum systems
- Hybridizing ferromagnetic magnons and microwave photons in the quantum limit
- Strong Coupling of a Spin Ensemble to a Superconducting Resonator
- Quantum Teleportation Between Distant Matter Qubits
- QuSpin: a Python Package for Dynamics and Exact Diagonalisation of Quantum Many Body Systems part I: spin chains
- Dressed Collective Qubit States and the Tavis-Cummings Model in Circuit QED
- Strong Coupling of a Single Electron in Silicon to a Microwave Photon
- Reversible state transfer between light and a single trapped atom
- Electron spin ensemble strongly coupled to a three-dimensional microwave cavity
- Enhanced molecular spin-photon coupling at superconducting nanoconstrictions