dorsal/arxiv
View SchemaMinimum construction of two-qubit quantum operations
| Authors | Jun Zhang, Jiri Vala, Shankar Sastry, K. Birgitta Whaley |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0312193 |
| URL | https://arxiv.org/abs/quant-ph/0312193 |
| DOI | 10.1103/PhysRevLett.93.020502 |
| Journal | Phys. Rev. Lett. 93, 020502 (2004) |
Abstract
Optimal construction of quantum operations is a fundamental problem in the realization of quantum computation. We here introduce a newly discovered quantum gate, B, that can implement any arbitrary two-qubit quantum operation with minimal number of both two- and single-qubit gates. We show this by giving an analytic circuit that implements a generic nonlocal two-qubit operation from just two applications of the B gate. We also demonstrate that for the highly scalable Josephson junction charge qubits, the B gate is also more easily and quickly generated than the CNOT gate for physically feasible parameters.
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"abstract": "Optimal construction of quantum operations is a fundamental problem in the\nrealization of quantum computation. We here introduce a newly discovered\nquantum gate, B, that can implement any arbitrary two-qubit quantum operation\nwith minimal number of both two- and single-qubit gates. We show this by giving\nan analytic circuit that implements a generic nonlocal two-qubit operation from\njust two applications of the B gate. We also demonstrate that for the highly\nscalable Josephson junction charge qubits, the B gate is also more easily and\nquickly generated than the CNOT gate for physically feasible parameters.",
"arxiv_id": "quant-ph/0312193",
"authors": [
"Jun Zhang",
"Jiri Vala",
"Shankar Sastry",
"K. Birgitta Whaley"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.93.020502",
"journal_ref": "Phys. Rev. Lett. 93, 020502 (2004)",
"title": "Minimum construction of two-qubit quantum operations",
"url": "https://arxiv.org/abs/quant-ph/0312193"
},
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