--- res: bibo_abstract: - A source of single photons allows secure quantum key distribution, in addition, to being a critical resource for linear optics quantum computing. We describe our progress on deterministically creating single photons from spontaneous parametric downconversion, an extension of the Pittman, Jacobs and Franson scheme [Phys. Rev A, v66, 042303 (2002)]. Their idea was to conditionally prepare single photons by measuring one member of a spontaneously emitted photon pair and storing the remaining conditionally prepared photon until a predetermined time, when it would be "deterministically" released from storage. Our approach attempts to improve upon this by recycling the pump pulse in order to decrease the possibility of multiple-pair generation, while maintaining a high probability of producing a single pair. Many of the challenges we discuss are central to other quantum information technologies, including the need for low-loss optical storage, switching and detection, and fast feed-forward control.@eng bibo_authorlist: - foaf_Person: foaf_givenName: Nicholas foaf_name: Peters, Nicholas A foaf_surname: Peters - foaf_Person: foaf_givenName: Keith foaf_name: Arnold, Keith J foaf_surname: Arnold - foaf_Person: foaf_givenName: Aaron foaf_name: VanDevender, Aaron P foaf_surname: Vandevender - foaf_Person: foaf_givenName: Evan foaf_name: Jeffrey, Evan R foaf_surname: Jeffrey - foaf_Person: foaf_givenName: Radhika foaf_name: Rangarajan, Radhika foaf_surname: Rangarajan - foaf_Person: foaf_givenName: Onur foaf_name: Onur Hosten foaf_surname: Hosten foaf_workInfoHomepage: http://www.librecat.org/personId=4C02D85E-F248-11E8-B48F-1D18A9856A87 orcid: 0000-0002-2031-204X - foaf_Person: foaf_givenName: Julio foaf_name: Barreiro, Julio T foaf_surname: Barreiro - foaf_Person: foaf_givenName: Joseph foaf_name: Altepeter, Joseph B foaf_surname: Altepeter - foaf_Person: foaf_givenName: Paul foaf_name: Kwiat, Paul G foaf_surname: Kwiat bibo_doi: 10.1117/12.684702 bibo_volume: 6305 dct_date: 2006^xs_gYear dct_publisher: SPIE@ dct_title: Towards a quasi-deterministic single-photon source@ ...