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Ensemble quantum-information processing by NMR : Implementation of gates and the creation of pseudopure states using dipolar coupled spins as qubits
| Content Provider | Semantic Scholar |
|---|---|
| Author | Mahesh, Thirunavukkarasu Sinha, Neeraj Ramanathan, K. V. |
| Copyright Year | 2002 |
| Abstract | Quantum-information processing is carried out using dipolar coupled spins and high-resolution nuclear magnetic resonance ~NMR!. The systems chosen are the dipolar coupled methyl protons of CH 3CN partially oriented in a liquid crystalline matrix yielding a two-qubit system and dipolar coupled C and methyl protons of CH3CN also partially oriented in the liquid crystalline matrix, yielding a three-qubit system. The dipolar coupled protons of oriented CH 3 group are chemically and magnetically identical and their eigenstates can be divided into a set of quartet states ~symmetricA! and a pair of doublet ~E! states. We describe here a method for selectively retaining the magnetization of the symmetric states, yielding two and three qubit systems. We create pseudopure states using single-quantum-transition selective pulses and implement twoand three-qubit gates using oneand two-dimensional NMR. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://eprints.iisc.ernet.in/438/1/Ensemble_quantum.pdf |
| Alternate Webpage(s) | http://nrc.iisc.ernet.in/anil/pdfs/136p.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Image resolution Information processing Nuclear magnetic resonance quantum computer Protons Quantum information science Qubit Units of information |
| Content Type | Text |
| Resource Type | Article |
