Integrated photonic quantum gates for polarization qubits (Articolo in rivista)

Type
Label
  • Integrated photonic quantum gates for polarization qubits (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1038/ncomms1570 (literal)
Alternative label
  • Crespi Andrea [ 1,2 ] ; Ramponi Roberta [ 1,2 ] ; Osellame Roberto [ 1,2 ] ; Sansoni Linda [ 3 ] ; Bongioanni Irene [ 3 ] ; Sciarrino Fabio [ 3,4 ] ; Vallone Giuseppe [ 3,5,6 ] ; Mataloni Paolo [ 3,4 ] (2011)
    Integrated photonic quantum gates for polarization qubits
    in Nature communications
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Crespi Andrea [ 1,2 ] ; Ramponi Roberta [ 1,2 ] ; Osellame Roberto [ 1,2 ] ; Sansoni Linda [ 3 ] ; Bongioanni Irene [ 3 ] ; Sciarrino Fabio [ 3,4 ] ; Vallone Giuseppe [ 3,5,6 ] ; Mataloni Paolo [ 3,4 ] (literal)
Pagina inizio
  • 566 (literal)
Pagina fine
  • 566 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 2 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [ 1 ] Consiglio Nazl Ric IFN CNR, Ist Foton & Nanotecnol, I-20133 Milan, Italy [ 2 ] Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy [ 3 ] Sapienza Univ Roma, Dipartimento Fis, I-00185 Rome, Italy [ 4 ] Consiglio Nazl Ric INO CNR, Ist Nazl Ott, I-50125 Florence, Italy [ 5 ] Museo Stor Fis, I-00184 Rome, Italy [ 6 ] Centro Studi & Ric Enrico Fermi, I-00184 Rome, Italy (literal)
Titolo
  • Integrated photonic quantum gates for polarization qubits (literal)
Abstract
  • The ability to manipulate quantum states of light by integrated devices may open new perspectives both for fundamental tests of quantum mechanics and for novel technological applications. However, the technology for handling polarization-encoded qubits, the most commonly adopted approach, is still missing in quantum optical circuits. Here we demonstrate the first integrated photonic controlled-NOT (CNOT) gate for polarization-encoded qubits. This result has been enabled by the integration, based on femtosecond laser waveguide writing, of partially polarizing beam splitters on a glass chip. We characterize the logical truth table of the quantum gate demonstrating its high fidelity to the expected one. In addition, we show the ability of this gate to transform separable states into entangled ones and vice versa. Finally, the full accessibility of our device is exploited to carry out a complete characterization of the CNOT gate through a quantum process tomography. (literal)
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