Tunable bandwidth and nonlinearities in an atom-photon interface with subradiant states
arXiv:1807.04105 · doi:10.1103/PhysRevA.98.013813
Abstract
Optical non-linearities at the single photon level are key features to build efficient photon-photon gates and to implement quantum networks. Such optical non-linearities can be obtained using an ideal two-level system such as a single atom coupled to an optical cavity. While efficient, such atom-photon interface however presents a fixed bandwidth, determined by the spontaneous emission time and thus the spectral width of the cavity-enhanced two-level transition, preventing an efficient transmission to bandwidth-mismatched atomic systems in a single quantum network. In the present work, we propose a tunable atom-photon interface making use of the direct dipole-dipole coupling of two slightly different atomic systems. We show that, when weakly coupled to a cavity mode and directly coupled through dipole-dipole interaction, the subradiant mode of two slightly-detuned atomic systems is optically addressable and presents a widely tunable bandwidth and single-photon nonlinearity.
References in corpus (36)
- The Quantum Internet
- Near optimal single photon sources in the solid state
- Cavity-based quantum networks with single atoms and optical photons
- On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar
- Experimental demonstration of quantum memory for light
- Storage and retrieval of single photons transmitted between remote quantum memories
- Resonance Fluorescence of a Single Artificial Atom
- Nanophotonic quantum phase switch with a single atom
- Mapping photonic entanglement into and out of a quantum memory
- The Single-Photon Router
- All-Optical Routing of Single Photons by a One-Atom Switch Controlled by a Single Photon
- Indistinguishable photons from separated silicon-vacancy centers in diamond
- Entangled states and collective nonclassical effects in two-atom systems
- Ultrafast all-optical switching by single photons
- A Single-Atom Quantum Memory
- A Quantum Gate between a Flying Optical Photon and a Single Trapped Atom
- A photon-photon quantum gate based on a single atom in an optical resonator
- CNOT and Bell-state analysis in the weak-coupling cavity QED regime
- Giant Optical Non-linearity induced by a Single Two-Level System interacting with a Cavity in the Purcell Regime
- Strong-coupling of quantum dots in microcavities
- Storage of fiber-guided light in a nanofiber-trapped ensemble of cold atoms
- Enhanced Quantum Interface with Collective Ion-Cavity Coupling
- Giant Stark effect in the emission of single semiconductor quantum dots
- A solid-state single-photon filter
- Mutual Coupling of two Semiconductor Quantum Dots via an Optical Nanocavity Mode
- Optical nonlinearity for few-photon pulses on a quantum dot-pillar cavity device
- Local optical control of the resonant dipole-dipole interaction between Rydberg atoms
- Decoherence-protected memory for a single-photon qubit
- Low-lying bifurcations in cavity quantum electrodynamics
- Photon Routing in Cavity QED: Beyond the Fundamental Limit of Photon Blockade
- Photon Blockade in Two-Emitter-Cavity Systems
- Microcavity controlled coupling of excitonic qubits
- A semiconductor photon-sorter
- Purification of a single photon nonlinearity
- Collective modes of quantum dot ensembles in microcavities
- A highly efficient single photon-single quantum dot interface