-: The need of efficient technique for synthesis of quantum circuits is of immense importance in defining efficient hardware for quantum computers. In this work, a new automated approach for quantum circuit synthesis using genetic algorithm has been presented. The methodology of building a quantum circuit corresponding to a given quantum operation, expressed in terms of a unitary transform matr...

Given a gate set S universal for quantum computing, the problem of decomposing a unitary operator U into a circuit over S is known as the synthesis problem. This problem can be solved exactly, if U belongs to the set of circuits generated by S. Otherwise, it can be solved approximately, by finding a circuit U ′ such that ||U ′ −U || < for some chosen precision > 0. The synthesis problem is impo...

When a universal quantum computer is used by the public, it assumed that will be in form of cloud server exists few bases due to its cost. In this server, privacy crucial issue, and blind computation protocol necessary so each user can use without details calculations being revealed. It also important able verify performing as instructed user, since cannot verified classical computation. paper,...

117901-1 We have designed and operated a circuit based on a large-area current-biased Josephson junction whose two lowest energy quantum levels are used to implement a solid-state qubit. The circuit allows measurement of the qubit states with a fidelity of 85% while providing sufficient decoupling from external sources of relaxation and decoherence to allow coherent manipulation of the qubit st...

This paper gives a glimpse of basic quantum computing concepts, which is an active area of research in today's world. The discussion starts with difference between a quantum computer and a classical one at the bit level, register level, logic gates level and at circuit level. Then, some of the important quantum phenomena such as quantum entanglement and quantum interference are discussed. After...

Precision tests verify the dc equivalent circuit used by Ricketts and Kemeny to describe a quantum Hall effect device in terms of electrical circuit elements. The tests employ the use of cryogenic current comparators and the double-series and triple-series connection techniques of Delahaye. Verification of the dc equivalent circuit in double-series and triple-series connections is a necessary s...

Universal quantum cloning machines (UQCMs), sometimes called quantum cloners, generate many outputs with identical density matrices, with as close a resemblance to the input state as is allowed by the basic principles of quantum mechanics. Any experimental realization of a quantum cloner has to cope with the effects of decoherence which terminate the coherent evolution demanded by a UQCM. We ex...