Theoretical Study Of A Quantum Processor Based On Superconducting Circuit And Its Manipulation

Since the concept of quantum computer came out,it has attracted the attention of researchers for more than 30 years.Especially after the advent of the Shor algorithm to solve practical problems,the public understood the importance of quantum computing.We briefly introduce some basic concepts of classical computers and the basics of quantum computing in this article.Simultaneously,we also made a simple comparison of how classical computers and quantum computers deal with problems,and briefly introduced the powerful potential of quantum computing from the perspective of quantum algorithms.The main content of the article is our theoretical research on a superconducting quantum processor.Because of its natural advantages in scalability,superconducting quantum circuits make it one of the main physical systems for quantum computing.The qubits in the system are constructed by circuits composed of Josephson Junctions.In this paper,we propose a quantum processor scheme in which the superconducting qubits are directly coupled symmetrically by capacitors.By adjusting the gate voltage,external magnetic flux and microwave pulse beam of each qubit,all logic gate operations required for general quantum computing are realized,especially parallel operations.The detailed process of these operations is given in the article,and the parameters required for the operation are analyzed.Based on this scheme,we also can realized GHZ state in one step At the end of the article,we give some superficial views on quantum computers.