On improving single photon sources via linear optics and photodetection
arXiv:quant-ph/0309140 · doi:10.1103/PhysRevA.69.031806
Abstract
In practice, single photons are generated as a mixture of vacuum with a single photon with weights 1-p and p, respectively; here we are concerned with increasing p by directing multiple copies of the single photon-vacuum mixture into a linear optic device and applying photodetection on some outputs to conditionally prepare single photon states with larger p. We prove that it is impossible, under certain conditions, to increase p via linear optics and conditional preparation based on photodetection, and we also establish a class of photodetection events for which p can be improved. In addition we prove that it is not possible to obtain perfect (p=1) single photon states via this method from imperfect (p<1) inputs.
4 pages, 1 figure
References in corpus (11)
- Security Aspects of Practical Quantum Cryptography
- Quantum Cryptography with Entangled Photons
- Triggered single photons from a quantum dot
- Deterministic Single-Photon Source for Distributed Quantum Networking
- Photon antibunching in the fluorescence of individual color centers in diamond
- On the impossibility of distilling Gaussian states with Gaussian operations
- Linear Optical CNOT Gate in the Coincidence Basis
- Enhanced single-photon emission from a quantum dot in a micropost microcavity
- Measurement-induced Nonlinearity in Linear Optics
- Efficient Classical Simulation of Optical Quantum Circuits
- Efficient Linear Optics Quantum Computation
Cited by in corpus (16)
- Review article: Linear optical quantum computing
- Generalised Hong-Ou-Mandel Experiments with Bosons and Fermions
- Optimizing linear optics quantum gates
- Journeys from Quantum Optics to Quantum Technology
- Coincidence Landscapes for Three-Channel Linear Optical Networks
- Single Photon Source Using Laser Pulses and Two-Photon Absorption
- Quantum theory of light and noise polarization in nonlinear optics
- Squeezed state purification with linear optics and feed forward
- Post-processing with linear optics for improving the quality of single-photon sources
- Interconvertibility of single-rail optical qubits
- Linear-optical processing cannot increase photon efficiency
- Efficiencies of Quantum Optical Detectors
- Heralded single-photon generation using imperfect single-photon sources and a two-photon-absorbing medium
- Preservation of loss in linear-optical processing
- Production of heralded pure single photons from imperfect sources using cross phase modulation
- Efficiency limits for linear optical processing of single photons and single-rail qubits