Remote preparation of arbitrary time-encoded single-photon ebits

Year: 2006

Authors: Zavatta A., D’Angelo M., Parigi V., Bellini M.

Autors Affiliation: CNR – Istituto Nazionale di Ottica Applicata, Largo Enrico Fermi, 6, I-50125 Florence, Italy;
LENS, Via Nello Carrara 1, 50019 Sesto Fiorentino, Florence, Italy;
Department of Physics, University of Florence, I-50019 Sesto Fiorentino, Florence, Italy

Abstract: We propose and experimentally verify a novel method for the remote preparation of entangled bits (ebits) made of a single photon coherently delocalized in two well-separated temporal modes. The proposed scheme represents a remotely tunable source for tailoring arbitrary ebits, whether maximally or nonmaximally entangled, which is highly desirable for applications in quantum information technology. The remotely prepared ebit is studied by performing homodyne tomography with an ultrafast balanced homodyne detection scheme recently developed in our laboratory.


Volume: 96 (2)      Pages from: 020502-1  to: 020502-4

KeyWords: Coherent light; Information technology; Quantum theory; Tomography, Entangled bits (ebits); Homodyne tomography, Photons
DOI: 10.1103/PhysRevLett.96.020502

Citations: 55
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