TOMOGRAPHIC QUANTUM CRYPTOGRAPHY PROTOCOLS ARE REFERENCE FRAME INDEPENDENT
نویسندگان
چکیده
منابع مشابه
Tight Reference Frame-Independent Quantum Teleportation
We give a tight scheme for teleporting a quantum state between two parties whose reference frames are misaligned by an action of a finite symmetry group. Unlike previously proposed schemes, ours requires no additional tokens or data to be passed between the participants; the same amount of classical information is transferred as for ordinary quantum teleportation, and the Hilbert space of the e...
متن کاملTomographic quantum cryptography: equivalence of quantum and classical key distillation.
The security of a cryptographic key that is generated by communication through a noisy quantum channel relies on the ability to distill a shorter secure key sequence from a longer insecure one. For an important class of protocols, which exploit tomographically complete measurements on entangled pairs of any dimension, we show that the noise threshold for classical advantage distillation is iden...
متن کاملNoise Analysis for two Quantum Cryptography Protocols
This paper presents noise analysis for the two-stage and the three-stage quantum cryptographic protocols based on random polarization rotations. The noise model used is that of uniform distribution of error over a certain small range that is associated with each link without regard for the source of the error. The noise in different links is taken to be independent. Advantages of the use of the...
متن کاملFaked states attack and quantum cryptography protocols
Leveraging quantum mechanics, cryptographers have devised provably secure key sharing protocols[4], [3], [6], [17]. Despite proving the security in theory, real-world application falls short of the ideal. Last year, cryptanalysts completed an experiment demonstrating a successful eavesdropping attack on commercial quantum key distribution (QKD) systems[12]. This attack exploits a weakness in th...
متن کاملNOVEL QUBIT QUANTUM CRYPTOGRAPHY PROTOCOLS Quantum Secret Sharing
This report summarises the ongoing work in QuComm on the demonstration of novel quantum communication protocols, in particular multi-party protocols or protocols which use more than 2-states (or more than one qubit). Such new protocols will extend the capabilities of quantum communication by increasing the channel capacity, by making the systems less sensitive to channel noise. Examples of such...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Quantum Information
سال: 2012
ISSN: 0219-7499,1793-6918
DOI: 10.1142/s0219749912500359