3 papers
quant-ph2004
Quantum secret key encryption algorithm based on quantum discrete logarithm problem
Chien-Yuan Chen, Chih-Cheng Hsueh
In this paper, we first define the quantum discrete logarithm problem (QDLP)which is similar to classical discrete logarithm problem. But, this problem cannot be solved by Shor's q…
quant-ph2004
Ensemble Algorithm for the Selection Problem by NMR Ensemble Quantum Computers
Chien-Yuan Chen, Chih-Cheng Hsueh
In this paper, we present an ensemble algorithm for selection problem to find the k-th smallest element in the unsorted database. We will search the k-th smallest element by using…
quant-ph2004
Breaking Classical Public Key Cryptosystems by Using a Novel Ensemble Search Algorithm
Chien-Yuan Chen
In this paper, we improve Bruschweiler's algorithm such that only one query is needed for searching the single object z from N=2^n unsorted elements. Our algorithm construct the ne…