Title :
Separation of longitudinal and transversal space in the description of twin photons
Author :
Visser, Joost ; Nienhuis, G.
Author_Institution :
Huygens Laboratory, Leiden Univ., Netherlands
Abstract :
General expressions for the created two-photon state and the coincidence detection amplitude are derived. The description accounts for entanglement in polarization, in time and frequency, and in the transversal momentum or position amplitudes. Characteristic for spontaneous parametric down-conversion (SPDC) is that the two photons are created at the same location in the crystal, at the same instant of time.
Keywords :
optical frequency conversion; quantum entanglement; quantum optics; two-photon processes; coincidence detection amplitude; parametric down-conversion; polarization entanglement; transversal momentum; twin photons; Cloning; Cryptographic protocols; Cryptography; Electromagnetic fields; Gaussian distribution; Phase modulation; Proposals; Pulse modulation; Quantum entanglement; Security;
Conference_Titel :
Quantum Electronics Conference, 2003. EQEC '03. European
Print_ISBN :
0-7803-7733-8
DOI :
10.1109/EQEC.2003.1314284
