Compressed quantum computation using a remote five-qubit quantum computer
| Autor: | Daniel Alsina, Barbara Kraus, Martin Hebenstreit, José I. Latorre |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
Quantum network Quantum simulator 01 natural sciences 010305 fluids & plasmas Open quantum system Computer Science::Emerging Technologies Quantum error correction Quantum mechanics 0103 physical sciences Quantum operation Quantum algorithm Statistical physics Quantum information 010306 general physics Quantum computer |
| Zdroj: | Physical Review A. 95 |
| ISSN: | 2469-9934 2469-9926 |
| DOI: | 10.1103/physreva.95.052339 |
| Popis: | The notion of compressed quantum computation is employed to simulate the Ising interaction of a 1D--chain consisting out of $n$ qubits using the universal IBM cloud quantum computer running on $\log(n)$ qubits. The external field parameter that controls the quantum phase transition of this model translates into particular settings of the quantum gates that generate the circuit. We measure the magnetization, which displays the quantum phase transition, on a two--qubit system, which simulates a four--qubit Ising chain, and show its agreement with the theoretical prediction within a certain error. We also discuss the relevant point of how to assess errors when using a cloud quantum computer. As a solution, we propose to use validating circuits, that is to run independent controlled quantum circuits of similar complexity to the circuit of interest. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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