dorsal/arxiv
View SchemaAlgorithmic Cooling and Scalable NMR Quantum Computers
| Authors | P. Oscar Boykin, Tal Mor, Vwani Roychowdhury, Farrokh Vatan, Rutger Vrijen |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0106093 |
| URL | https://arxiv.org/abs/quant-ph/0106093 |
| DOI | 10.1073/pnas.241641898 |
Abstract
We present here algorithmic cooling (via polarization-heat-bath)- a powerful method for obtaining a large number of highly polarized spins in liquid nuclear-spin systems at finite temperature. Given that spin-half states represent (quantum) bits, algorithmic cooling cleans dirty bits beyond the Shannon's bound on data compression, by employing a set of rapidly thermal-relaxing bits. Such auxiliary bits could be implemented using spins that rapidly get into thermal equilibrium with the environment, e.g., electron spins. Cooling spins to a very low temperature without cooling the environment could lead to a breakthrough in nuclear magnetic resonance experiments, and our ``spin-refrigerating'' method suggests that this is possible. The scaling of NMR ensemble computers is probably the main obstacle to building useful quantum computing devices, and our spin-refrigerating method suggests that this problem can be resolved.
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"abstract": "We present here algorithmic cooling (via polarization-heat-bath)- a powerful\nmethod for obtaining a large number of highly polarized spins in liquid\nnuclear-spin systems at finite temperature. Given that spin-half states\nrepresent (quantum) bits, algorithmic cooling cleans dirty bits beyond the\nShannon\u0027s bound on data compression, by employing a set of rapidly\nthermal-relaxing bits. Such auxiliary bits could be implemented using spins\nthat rapidly get into thermal equilibrium with the environment, e.g., electron\nspins.\n Cooling spins to a very low temperature without cooling the environment could\nlead to a breakthrough in nuclear magnetic resonance experiments, and our\n``spin-refrigerating\u0027\u0027 method suggests that this is possible.\n The scaling of NMR ensemble computers is probably the main obstacle to\nbuilding useful quantum computing devices, and our spin-refrigerating method\nsuggests that this problem can be resolved.",
"arxiv_id": "quant-ph/0106093",
"authors": [
"P. Oscar Boykin",
"Tal Mor",
"Vwani Roychowdhury",
"Farrokh Vatan",
"Rutger Vrijen"
],
"categories": [
"quant-ph"
],
"doi": "10.1073/pnas.241641898",
"title": "Algorithmic Cooling and Scalable NMR Quantum Computers",
"url": "https://arxiv.org/abs/quant-ph/0106093"
},
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