Quantum key distribution without reference frame alignment: Exploiting photon orbital angular momentum
نویسندگان
چکیده
منابع مشابه
Quantum key distribution without reference frame alignment: Exploiting photon orbital angular momentum
We present a new implementation of the BB84 quantum key distribution protocol that employs a d-dimensional Hilbert space spanned by spatial modes of the propagating beam that have a definite value of orbital angular momentum. Each photon carries log d bits of information, increasing the key generation rate of the protocol. The states used in the transmission part of the protocol are invariant u...
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The orbital angular momentum of photons, being defined in an infinite-dimensional discrete Hilbert space, offers a promising resource for high-dimensional quantum information protocols in quantum optics. The biggest obstacle to its wider use is presently represented by the limited set of tools available for its control and manipulation. Here, we introduce and test experimentally a series of sim...
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ژورنال
عنوان ژورنال: Optics Communications
سال: 2006
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2005.10.001