dorsal/arxiv
View SchemaExperimental Quantum Computation with Nuclear Spins in Liquid Solution
| Authors | Lieven M. K. Vandersypen |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0205193 |
| URL | https://arxiv.org/abs/quant-ph/0205193 |
Abstract
We have taken significant steps towards the realization of a practical quantum computer: using nuclear spins and magnetic resonance techniques at room temperature, we provided proof of principle of quantum computing in a series of experiments which culminated in the implementation of the simplest instance of Shor's quantum algorithm for prime factorization (15=3x5), using a seven-spin molecule. This algorithm achieves an exponential advantage over the best known classical factoring algorithms and its implementation represents a milestone in the experimental exploration of quantum computation. These remarkable successes have been made possible by the synthesis of suitable molecules and the development of many novel techniques for initialization, coherent control and readout of the state of multiple coupled nuclear spins. Furthermore, we devised and implemented a model to simulate both unitary and decoherence processes in these systems, in order to study and quantify the impact of various technological as well as fundamental sources of errors. In summary, this work has given us a much needed practical appreciation of what it takes to build a quantum computer. While liquid NMR quantum computing has well-understood scaling limitations, many of the techniques that originated from this research may find use in other, perhaps more scalable quantum computer implementations.
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"abstract": "We have taken significant steps towards the realization of a practical\nquantum computer: using nuclear spins and magnetic resonance techniques at room\ntemperature, we provided proof of principle of quantum computing in a series of\nexperiments which culminated in the implementation of the simplest instance of\nShor\u0027s quantum algorithm for prime factorization (15=3x5), using a seven-spin\nmolecule. This algorithm achieves an exponential advantage over the best known\nclassical factoring algorithms and its implementation represents a milestone in\nthe experimental exploration of quantum computation. These remarkable successes\nhave been made possible by the synthesis of suitable molecules and the\ndevelopment of many novel techniques for initialization, coherent control and\nreadout of the state of multiple coupled nuclear spins. Furthermore, we devised\nand implemented a model to simulate both unitary and decoherence processes in\nthese systems, in order to study and quantify the impact of various\ntechnological as well as fundamental sources of errors. In summary, this work\nhas given us a much needed practical appreciation of what it takes to build a\nquantum computer. While liquid NMR quantum computing has well-understood\nscaling limitations, many of the techniques that originated from this research\nmay find use in other, perhaps more scalable quantum computer implementations.",
"arxiv_id": "quant-ph/0205193",
"authors": [
"Lieven M. K. Vandersypen"
],
"categories": [
"quant-ph"
],
"title": "Experimental Quantum Computation with Nuclear Spins in Liquid Solution",
"url": "https://arxiv.org/abs/quant-ph/0205193"
},
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