dorsal/arxiv
View SchemaQuantum computing with an inhomogeneously broadened ensemble of ions: Suppression of errors from detuning variations by specially adapted pulses and coherent population trapping
| Authors | Ingela Roos, Klaus Molmer |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0305060 |
| URL | https://arxiv.org/abs/quant-ph/0305060 |
| DOI | 10.1103/PhysRevA.69.022321 |
Abstract
The proposal for quantum computing with rare-earth-ion qubits in inorganic crystals makes use of the inhomogeneous broadening of optical transitions in the ions to associate individual qubits with ions responding to radiation in selected frequency channels. We show that a class of Gaussian composite pulses and complex sech pulses provide accurate qubit pi-rotations, which are at the same time channel selective on a 5 MHz frequency scale and tolerant to 0.5 MHz deviations of the transition frequency of ions within a single channel. Rotations in qubit space of arbitrary angles and phases are produced by sequences of pi-pulses between the excited state of the ions and coherent superpositions of the qubit states.
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"abstract": "The proposal for quantum computing with rare-earth-ion qubits in inorganic\ncrystals makes use of the inhomogeneous broadening of optical transitions in\nthe ions to associate individual qubits with ions responding to radiation in\nselected frequency channels. We show that a class of Gaussian composite pulses\nand complex sech pulses provide accurate qubit pi-rotations, which are at the\nsame time channel selective on a 5 MHz frequency scale and tolerant to 0.5 MHz\ndeviations of the transition frequency of ions within a single channel.\nRotations in qubit space of arbitrary angles and phases are produced by\nsequences of pi-pulses between the excited state of the ions and coherent\nsuperpositions of the qubit states.",
"arxiv_id": "quant-ph/0305060",
"authors": [
"Ingela Roos",
"Klaus Molmer"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.69.022321",
"title": "Quantum computing with an inhomogeneously broadened ensemble of ions: Suppression of errors from detuning variations by specially adapted pulses and coherent population trapping",
"url": "https://arxiv.org/abs/quant-ph/0305060"
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