Photonic Quantum Logic with Narrowband Light from Single Atoms
arXiv:1508.03266 · doi:10.1103/PhysRevLett.117.023602
Abstract
Increasing control of single photons enables new applications of photonic quantum-enhanced technology and further experimental exploration of fundamental quantum phenomena. Here, we demonstrate quantum logic using narrow linewidth photons that are produced under nearly perfect quantum control from a single ^87Rb atom strongly coupled to a high-finesse cavity. We use a controlled- NOT gate integrated into a photonic chip to entangle these photons, and we observe non-classical correlations between events separated by periods exceeding the travel time across the chip by three orders of magnitude. This enables quantum technology that will use the properties of both narrowband single photon sources and integrated quantum photonics, such as networked quantum computing, narrow linewidth quantum enhanced sensing and atomic memories.
arXiv comment5 pates, 3 figures
References in corpus (27)
- Review article: Linear optical quantum computing
- Photonic quantum technologies
- Quantum state transfer and entanglement distribution among distant nodes in a quantum network
- Detecting Single Infrared Photons with 93% System Efficiency
- Silica-on-Silicon Waveguide Quantum Circuits
- An Elementary Quantum Network of Single Atoms in Optical Cavities
- Deterministic Single-Photon Source for Distributed Quantum Networking
- On-chip quantum interference between silicon photon-pair sources
- A Single-Atom Quantum Memory
- A Schmidt number for density matrices
- Linear Optical CNOT Gate in the Coincidence Basis
- Tailoring Single and Multiphoton Probabilities of a Single Photon On-Demand Source
- Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit
- Quantum Beat of Two Single Photons
- Quantum phase gate for photonic qubits using only beam splitters and post-selection
- Entanglement-enhanced probing of a delicate material system
- When are correlations quantum? -- Verification and quantification of entanglement by simple measurements
- Highly Efficient Source for Indistinguishable Photons of Controlled Shape
- Testing foundations of quantum mechanics with photons
- Single-Photon Absorption in Coupled Atom-Cavity Systems
- Photonic qubits, qutrits and ququads accurately prepared and delivered on demand
- Controlled-NOT gate operating with single photons
- Controlled insertion and retrieval of atoms coupled to a high-finesse optical resonator
- An entangling quantum-logic gate operated with an ultrabright single photon-source
- On Chip Manipulation of Single Photons from a Diamond Defect
- Photon Statistics of a Non-Stationary Periodically Driven Single-Photon Source
- Quantitative verification of entanglement and fidelities from incomplete measurement data
Cited by in corpus (10)
- Roadmap on STIRAP applications
- Quantum memory and gates using a Lambda-type quantum emitter coupled to a chiral waveguide
- Room-temperature biphoton source with a spectral brightness near the ultimate limit
- Quantum phase gate Based on Electromagnetically Induced Transparency in Optical Cavities
- Quantum optical feedback control for creating strong correlations in many-body systems
- Tunable Photon blockade with single atom in a cavity under electromagnetically induced transparency
- Multiple single-photon generations in three-level atoms coupled to cavity with non-Markovian effects
- Temporal profile of biphotons generated from a hot atomic vapor and spectrum of electromagnetically induced transparency
- Multimode interferometry for entangling atoms in quantum networks
- Bursts of polarised single photons from atom-cavity sources