| Autor: |
Sharma, Amritesh, Tulapurkar, Ashwin A. |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Phys. Rev. A 101, 062330 (2020) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevA.101.062330 |
| Popis: |
We examine here a scheme to generate a W state of an n-qubit system with all-to-all pairwise exchange interaction between n qubits. This relies on sharing of superposed excitations of a smaller number of $q$ qubits among others. We present a bound on the maximal jumps from q to n and formalize a scheme to generate $W_n$ state in $\mathcal{O}(\log_4 n)$ stages. We demonstrate this scheme in the context of spin torque based quantum computing architecture that are characterized by repeated interactions between static and flying qubits. |
| Databáze: |
arXiv |
| Externí odkaz: |
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