Unconventional saturation effects at intermediate drive in a lossy cavity coupled to few emitters
arXiv:2110.00595 · doi:10.1103/PhysRevA.108.053706
Abstract
Recent technological advancements have enabled strong light-matter interaction in highly dissipative cavity-emitter systems. However, in these systems, which are well described by the Tavis-Cummings model, the considerable loss rates render the realization of many desirable nonlinear effects, such as saturation and photon blockade, problematic. Here we present another effect occurring within the Tavis-Cummings model: a nonlinear response of the cavity for resonant external driving of intermediate strength, which makes use of large cavity dissipation rates. In this regime, -photon processes dominate when the cavity couples to emitters. We explore and characterize this effect in detail, and provide a picture of how the effect occurs due to destructive interference between the emitter ensemble and the external drive. We find that a central condition for the observed effect is large cooperativity, i.e., the product of the cavity and emitter decay rates is much smaller than the collective cavity-emitter interaction strength squared. Importantly, this condition does not require strong coupling. We also find an analytical expression for the critical drive strength at which the effect appears. Our results have potential for quantum state engineering, e.g., photon filtering, and could be used for the characterization of cavity-emitter systems where the number of emitters is unknown. In particular, our results open the way for investigations of unique quantum-optics applications in a variety of platforms that neither require high-quality cavities nor strong coupling.
27 pages, 13 figures. New material including analytical calculations and discussions about approximations
References in corpus (12)
- Strong coupling between surface plasmon polaritons and emitters
- An Elementary Quantum Network of Single Atoms in Optical Cavities
- Single photons from coupled quantum modes
- All-Optical Routing of Single Photons by a One-Atom Switch Controlled by a Single Photon
- On the origin of strong photon antibunching in weakly nonlinear photonic molecules
- The Unconventional Photon Blockade
- How good must single photon sources and detectors be for efficient linear optical quantum computation?
- Two-photon and three-photon blockades in driven nonlinear systems
- Testing nonclassicality in multimode fields: a unified derivation of classical inequalities
- Two-mode optical state truncation and generation of maximally entangled states in pumped nonlinear couplers
- Cavity QED in superconducting circuits: susceptibility at elevated temperatures
- Reconfigurable photon sources based on quantum plexcitonic systems