title: Entangling single photons from independently tuned semiconductor nanoemitters.
abstract: Quantum communication systems based on nanoscale semiconductor devices is challenged by inhomogeneities from device to device. We address this challenge using ZnMgSe/ZnSe quantum-well nanostructures with local laser-based heating to tune the emission of single impurity-bound exciton emitters in two separate devices. The matched emission in combination with photon bunching enables quantum interference from the devices and allows the postselection of polarization-entangled single photons. The ability to entangle single photons emitted from nanometer-sized sources separated by macroscopic distances provides an essential step for a solid-state realization of a large-scale quantum optical network. This paves the way toward measurement-based entanglement generation between remote electron spins localized at macroscopically separated fluorine impurities.
authors: E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305, United States. sanaka@stanford.edu
authors: Kaoru
authors: K
authors: Sanaka
authors: Alexander
authors: A
authors: Pawlis
authors: Thaddeus D
authors: TD
authors: Ladd
authors: Darin J
authors: DJ
authors: Sleiter
authors: Klaus
authors: K
authors: Lischka
authors: Yoshihisa
authors: Y
authors: Yamamoto
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000295:instrumentation*; D010316:Particle Size; D017785:Photons; D018036:Selenium Compounds / Q000737:chemistry*; D012666:Semiconductors; D017967:Zinc Compounds / Q000737:chemistry*
chemical_list: D018036:Selenium Compounds; D017967:Zinc Compounds; C044696:zinc selenide