dorsal/arxiv
View SchemaEfficient Networks for Quantum Factoring
| Authors | David Beckman, Amalavoyal N. Chari, Srikrishna Devabhaktuni, John Preskill |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9602016 |
| URL | https://arxiv.org/abs/quant-ph/9602016 |
| DOI | 10.1103/PhysRevA.54.1034 |
| Journal | Phys. Rev.A54:1034-1063,1996 |
Abstract
We consider how to optimize memory use and computation time in operating a quantum computer. In particular, we estimate the number of memory qubits and the number of operations required to perform factorization, using the algorithm suggested by Shor. A $K$-bit number can be factored in time of order $K^3$ using a machine capable of storing $5K+1$ qubits. Evaluation of the modular exponential function (the bottleneck of Shor's algorithm) could be achieved with about $72 K^3$ elementary quantum gates; implementation using a linear ion trap would require about $396 K^3$ laser pulses. A proof-of-principle demonstration of quantum factoring (factorization of 15) could be performed with only 6 trapped ions and 38 laser pulses. Though the ion trap may never be a useful computer, it will be a powerful device for exploring experimentally the properties of entangled quantum states.
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"abstract": "We consider how to optimize memory use and computation time in operating a\nquantum computer. In particular, we estimate the number of memory qubits and\nthe number of operations required to perform factorization, using the algorithm\nsuggested by Shor. A $K$-bit number can be factored in time of order $K^3$\nusing a machine capable of storing $5K+1$ qubits. Evaluation of the modular\nexponential function (the bottleneck of Shor\u0027s algorithm) could be achieved\nwith about $72 K^3$ elementary quantum gates; implementation using a linear ion\ntrap would require about $396 K^3$ laser pulses. A proof-of-principle\ndemonstration of quantum factoring (factorization of 15) could be performed\nwith only 6 trapped ions and 38 laser pulses. Though the ion trap may never be\na useful computer, it will be a powerful device for exploring experimentally\nthe properties of entangled quantum states.",
"arxiv_id": "quant-ph/9602016",
"authors": [
"David Beckman",
"Amalavoyal N. Chari",
"Srikrishna Devabhaktuni",
"John Preskill"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.54.1034",
"journal_ref": "Phys. Rev.A54:1034-1063,1996",
"title": "Efficient Networks for Quantum Factoring",
"url": "https://arxiv.org/abs/quant-ph/9602016"
},
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