Effects of frequency correlation in linear optical entangling gate operated with independent photons
arXiv:0704.3763 · doi:10.1103/PhysRevA.76.043825
Abstract
Bose-Einstein coalescence of independent photons at the surface of a beam splitter is the physical process that allows linear optical quantum gates to be built. When distinct parametric down-conversion events are used as an independent photon source, distinguishability arises form the energy correlation of each photon with its twin. We find that increasing the pump bandwidth may help in improving the visibility of non-classical interference and reaching a level of near perfect indistinguishability. PACS: 03.67.Mn, 42.65.Lm, 42.50.St.
Replaced with published version
References in corpus (16)
- Entanglement of Formation of an Arbitrary State of Two Qubits
- Experimental One-Way Quantum Computing
- Triggered single photons from a quantum dot
- Experimental entanglement of six photons in graph states
- Optical quantum computation using cluster states
- Quantum process tomography of a controlled-NOT gate
- High-speed linear optics quantum computing using active feed-forward
- Linear Optics C-Phase gate made simple
- Demonstration of a simple entangling optical gate and its use in Bell-state analysis
- Demonstration of an optical quantum controlled-NOT gate without path interference
- Experimental interference of independent photons
- Quantitative wave-particle duality and non-erasing quantum erasure
- Realization and characterization of a 2-photon 4-qubit linear cluster state
- Polarization-controlled single photons
- Experimental realization of a minimal disturbance quantum measurement
- Experimental Synchronization of Independent Entangled Photon Sources