Premium
Studies of femtosecond time‐bin entangled qubits for quantum communications
Author(s) -
Marcikic I.,
de Riedmatten H.,
Tittel W.,
Scarani V.,
Acin A.,
Tanzilli S.,
Zbinden H.,
Gisin N.
Publication year - 2003
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.200310058
Subject(s) - quantum entanglement , bin , degenerate energy levels , quantum decoherence , photon entanglement , qubit , physics , femtosecond , photon , quantum mechanics , quantum , computer science , laser , algorithm
We create pairs of non‐degenerate time‐bin entangled photons at telecom wavelengths with ultra‐short pump pulses. Entanglement is shown by performing Bell kind tests of the Franson type with visibilities of up to 91 time‐bin entanglement can easily be protected from decoherence as encountered in optical fibers, this experiment opens the road for complex quantum communication protocols over long distances.