Universal quantum circuit for n-qubit quantum gate: A programmable quantum gate
| Autor: | Rubens Viana Ramos, P. B. M. Sousa |
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| Předmět: |
Nuclear and High Energy Physics
Quantum network Theoretical computer science General Physics and Astronomy Statistical and Nonlinear Physics Topology Theoretical Computer Science Quantum technology Computer Science::Hardware Architecture Open quantum system Quantum circuit Computer Science::Emerging Technologies Quantum gate Computational Theory and Mathematics Quantum error correction ComputerSystemsOrganization_MISCELLANEOUS Quantum process Quantum algorithm Mathematical Physics Mathematics |
| Zdroj: | Scopus-Elsevier |
| Popis: | Quantum computation has attracted much attention, among other things, due to its potentialities to solve classical NP problems in polynomial time. For this reason, there has been a growing interest to build a quantum computer. One of the basic steps is to implement the quantum circuit able to realize a given unitary operation. This task has been solved using decomposition of unitary matrices in simpler ones till reach quantum circuits having only single-qubits and CNOTs gates. Usually the goal is to find the minimal quantum circuit able to solve a given problem. In this paper we go in a different direction. We propose a general quantum circuit able to implement any specific quantum circuit by just setting correctly the parameters. In other words, we propose a programmable quantum circuit. This opens the possibility to construct a real quantum computer where several different quantum operations can be realized in the same hardware. The configuration is proposed and its optical implementation is discussed. |
| Databáze: | OpenAIRE |
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