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Laser Physics

, Volume 16, Issue 11, pp 1501–1507 | Cite as

Two-mode homodyne tomography of time-encoded single-photon ebits

  • A. Zavatta
  • M. D’Angelo
  • V. Parigi
  • M. Bellini
Quantum Information and Quantum Computation
  • 42 Downloads

Abstract

We have developed a technique for dual-temporal-mode, ultrafast, time-domain, balanced homodyne detection. We have tested it by performing homodyne measurements on pairs of picosecond-duration temporal modes (or “time bins”) carrying a delocalized single photon. The experimental homodyne data have been used to reconstruct both the density matrix and the two-mode Wigner function of the delocalized state, thus showing the correlations existing between the pair of temporal modes carrying the single photon.

PACS numbers

03.67.Mn 42.50.Dv 03.65.Wj 

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Copyright information

© MAIK “Nauka/Interperiodica” 2006

Authors and Affiliations

  • A. Zavatta
    • 1
  • M. D’Angelo
    • 2
  • V. Parigi
    • 3
  • M. Bellini
    • 1
    • 2
  1. 1.Istituto Nazionale di Ottica Applicata-CNRFlorenceItaly
  2. 2.LENSSesto Florentino, FlorenceItaly
  3. 3.Department of PhysicsUniversity of FlorenceSesto Fiorentino, FlorenceItaly

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