Nuclear magnetic resonance quantum computing using liquid crystal solvents
| Autor: | Costantino S. Yannoni, Lieven M. K. Vandersypen, Mark G. Kubinec, Mark H. Sherwood, Isaac L. Chuang, Dolores C. Miller |
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| Rok vydání: | 1999 |
| Předmět: |
Quantum Physics
Coherence time Materials science Physics and Astronomy (miscellaneous) Spins Clock rate Relaxation (NMR) FOS: Physical sciences Condensed Matter::Soft Condensed Matter NMR spectra database Nuclear magnetic resonance Liquid crystal Physics::Chemical Physics Quantum Physics (quant-ph) Magnetic dipole–dipole interaction Quantum computer |
| Zdroj: | Applied Physics Letters. 75:3563-3565 |
| ISSN: | 1077-3118 0003-6951 3563-3565 |
| DOI: | 10.1063/1.125389 |
| Popis: | Liquid crystals offer several advantages as solvents for molecules used for nuclear magnetic resonance quantum computing (NMRQC). The dipolar coupling between nuclear spins manifest in the NMR spectra of molecules oriented by a liquid crystal permits a significant increase in clock frequency, while short spin-lattice relaxation times permit fast recycling of algorithms, and save time in calibration and signal-enhancement experiments. Furthermore, the use of liquid crystal solvents offers scalability in the form of an expanded library of spin-bearing molecules suitable for NMRQC. These ideas are demonstrated with the successful execution of a 2-qubit Grover search using a molecule ($^{13}$C$^{1}$HCl$_3$) oriented in a liquid crystal and a clock speed eight times greater than in an isotropic solvent. Perhaps more importantly, five times as many logic operations can be executed within the coherence time using the liquid crystal solvent. Minor changes. Published in Appl. Phys. Lett. v.75, no.22, 29 Nov 1999, p.3563-3565 |
| Databáze: | OpenAIRE |
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