منابع مشابه
Quantum bit regeneration.
Decoherence and loss will limit the practicality of quantum cryptography and computing unless successful error correction techniques are developed. To this end, we have discovered a new scheme for perfectly detecting and rejecting the error caused by loss (amplitude damping to a reservoir at T 0), based on using a dual-rail representation of a quantum bit. This is possible because (1) balance...
متن کاملQuantum bit string commitment.
A bit string commitment protocol securely commits N classical bits so that the recipient can extract only M<N bits of information about the string. Classical reasoning suggests that bit string commitment implies bit commitment and hence, given the Mayers-Lo-Chau theorem, that nonrelativistic quantum bit string commitment is impossible. Not so: there exist nonrelativistic quantum bit string comm...
متن کاملQuantum Bit Commitment
This paper is reversing the current belief on Quantum Bit Commitment. Several papers have claimed and given a formal proof that quantum bit commitment is impossible. Nevertheless, the hypotheses of the formal mathematical model are too restrictive and do not exhaustively reflect the original definition of the problem. They share the same unnecessary restriction that the responsibility of hiding...
متن کاملRelativistic Quantum Bit Commitment
A new relativistic quantum protocol is proposed allowing to implement the bit commitment scheme. The protocol is based on the idea that in the relativistic case the field propagation to the region of space accessible to measurement requires, contrary to the non-relativistic case, a finite non-zero time which depends on the structure of the particular state of the field. In principle, the secret...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1996
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.76.4281