Optimizing H1 cavities for the generation of entangled photon pairs

Abstract

We report on the theoretical investigation of photonic crystal cavities etched on a suspended membrane for the generation of polarization entangled photon pairs using the biexciton cascade in a single quantum dot. The implementation of spontaneous emission enhancement effect increases the entanglement visibility, while the concomitant preferential funneling of the emission in the cavity mode increases the collection of both entangled photons. We demonstrate and quantify that standard cavity designs present a polarization dependent emission diagram, detrimental to entanglement. The optimization of H1 cavities allows to obtain both high collection efficiencies and polarization independent emission, while keeping high Purcell factors necessary for high quality entangled photon sources.

References in corpus (20)

• Polynomial-Time Algorithms for Prime Factorization and Discrete Logarithms on a Quantum Computer
• Quantum Mechanics helps in searching for a needle in a haystack
• Entangled Photon Pairs from Semiconductor Quantum Dots
• Photon antibunching in the fluorescence of individual color centers in diamond
• Optical-fiber source of polarization-entangled photon pairs in the 1550nm telecom band
• High-speed linear optics quantum computing using active feed-forward
• Entangling Independent Photons by Time Measurement
• Manipulating exciton fine-structure in quantum dots with a lateral electric field
• Magnetic-field-induced reduction of the exciton polarization splitting in InAs quantum dots
• Photonic crystal fibre source of photon pairs for quantum information processing
• Coherence of an Entangled Exciton-Photon State
• Quantum Relays for Long Distance Quantum Cryptography
• Vertical beaming of wavelength-scale photonic crystal resonators
• Entangled photon pairs produced by a quantum dot strongly coupled to a microcavity
• Quantum teleportation over the Swisscom telecommunication network
• Phonon-assisted decoherence in the production of polarization-entangled photons in a single semiconductor quantum dot
• Four-photon correction in two-photon Bell experiments
• Mode identification of high-quality-factor single-defect nanocavities in quantum dot-embedded photonic crystals
• Optimizing H1 cavities for the generation of entangled photon pairs
• Bell inequalities and density matrix for polarization entangled photons out of a two-photon cascade in a single quantum dot

Cited by in corpus (8)

• Quantum-dot-spin single-photon interface
• Metal-coated nano-cylinder cavity for broadband nonclassical light emission
• Plasmonic Nanoantennas for Efficient Control of Polarization-Entangled Photon Pairs
• Optimizing H1 cavities for the generation of entangled photon pairs
• H1 photonic crystal cavitites for hybrid quantum information protocols
• Waveguide-Coupled Photonic Crystal Cavity for Quantum Dot Spin Readout
• Circular photonic crystal grating design for charge-tunable quantum light sources in the telecom C-band
• Transfer of arbitrary quantum emitter states to near-field photon superpositions in nanocavities