Abstract
Single-photon applications like linear optics quantum computation and quantum teleportation are based on two-photon interference of two single-photon pulses on a beamsplitter which require indistinguishable photons [1]. For pulsed operation, this means that the two photons have to be Fourier transform-limited and possess the same pulse width, bandwidth, carrier frequency, polarization, transverse mode profile, and arrival time at the beam splitter. The critical ingredient to create such ideal photons is the process of initial excitation of the emitter which strongly influences the coherence properties of the photons.
© 2009 IEEE
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