Relativistic quantum coin tossing
نویسندگان
چکیده
منابع مشابه
Relativistic quantum coin tossing
A relativistic quantum information exchange protocol is proposed allowing two distant users to realize “coin tossing” procedure. The protocol is based on the point that in relativistic quantum theory reliable distinguishing between the two orthogonal states generally requires a finite time depending on the structure of these states. PACS numbers: 03.67.-a, 03.65.Bz, 42.50Dv The coin tossing pro...
متن کاملExperimental quantum coin tossing.
In this Letter we present the first implementation of a quantum coin-tossing protocol. This protocol belongs to a class of "two-party" cryptographic problems, where the communication partners distrust each other. As with a number of such two-party protocols, the best implementation of the quantum coin tossing requires qutrits, resulting in a higher security than using qubits. In this way, we ha...
متن کامل0 Relativistic quantum protocols : “ Bit Commitment ” and “ Coin Tossing ”
The relativistic quantum protocols realizing the bit commitment and distant coin tossing schemes are proposed. The protocols are based on the fact that the non-stationary orthogonal extended quantum states cannot be reliably distinguished if they are not fully accessible for the measurement. As the states propagate from the domain controlled by one of the user to the domain accessible for the m...
متن کاملExperimental quantum tossing of a single coin
The cryptographic protocol of coin tossing consists of two parties, Alice and Bob, that do not trust each other, but want to generate a random bit. If the parties use a classical communication channel and have unlimited computational resources, one of them can always cheat perfectly. Here we analyze in detail how the performance of a quantum coin tossing experiment should be compared to classic...
متن کاملQuantum Bit Commitment and Coin Tossing Protocols
In the late 1960’s a physicist, Stephen Wiesner, had the idea that the uncertainty principle could be used for cryptography (though he published his result much later [Wie83]). One of his ideas was that it would be possible to use a stream of polarized photons to transmit two messages in a way that would make only one of them readable at the receiver’s choosing. This notion, which he called “mu...
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ژورنال
عنوان ژورنال: Journal of Experimental and Theoretical Physics Letters
سال: 1999
ISSN: 0021-3640,1090-6487
DOI: 10.1134/1.568249