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Spectroscopy and coherent manipulation of single and coupled flux qubits.

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Title: Spectroscopy and coherent manipulation of single and coupled flux qubits.
Authors: Yu-Lin, Wu1, Hui, Deng1, Ke-Qiang, Huang1, Ye, Tian1, Hai-Feng, Yu1, Guang-Ming, Xue1, Yi-Rong, Jin1, Jie, Li1, Shi-Ping, Zhao1, Dong-Ning, Zheng1 dzheng@aphy.iphy.ac.cn
Source: Chinese Physics B. Sep2013, Vol. 22 Issue 9, p090312-090318. 7p.
Subjects: Quantum computing, Computer science, Qubits, Superconducting quantum interference devices, Quantum interference devices
Abstract: Measurements of three-junction flux qubits, both single flux qubits and coupled flux qubits, using a coupled direct current superconducting quantum interference device (dc-SQUID) for readout are reported. The measurement procedure is described in detail. We performed spectroscopy measurements and coherent manipulations of the qubit states on a single flux qubit, demonstrating quantum energy levels and Rabi oscillations, with Rabi oscillation decay time TRabi = 78 ns and energy relaxation time T1 = 315 ns. We found that the value of TRabi depends strongly on the mutual inductance between the qubit and the magnetic coil. We also performed spectroscopy measurements on inductively coupled flux qubits. [ABSTRACT FROM AUTHOR]
Copyright of Chinese Physics B is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 94287896
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Spectroscopy and coherent manipulation of single and coupled flux qubits.
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  Data: <searchLink fieldCode="AR" term="%22Yu-Lin%2C+Wu%22">Yu-Lin, Wu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hui%2C+Deng%22">Hui, Deng</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ke-Qiang%2C+Huang%22">Ke-Qiang, Huang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ye%2C+Tian%22">Ye, Tian</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hai-Feng%2C+Yu%22">Hai-Feng, Yu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Guang-Ming%2C+Xue%22">Guang-Ming, Xue</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yi-Rong%2C+Jin%22">Yi-Rong, Jin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Jie%2C+Li%22">Jie, Li</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Shi-Ping%2C+Zhao%22">Shi-Ping, Zhao</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Dong-Ning%2C+Zheng%22">Dong-Ning, Zheng</searchLink><relatesTo>1</relatesTo><i> dzheng@aphy.iphy.ac.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Chinese+Physics+B%22">Chinese Physics B</searchLink>. Sep2013, Vol. 22 Issue 9, p090312-090318. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Quantum+computing%22">Quantum computing</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+science%22">Computer science</searchLink><br /><searchLink fieldCode="DE" term="%22Qubits%22">Qubits</searchLink><br /><searchLink fieldCode="DE" term="%22Superconducting+quantum+interference+devices%22">Superconducting quantum interference devices</searchLink><br /><searchLink fieldCode="DE" term="%22Quantum+interference+devices%22">Quantum interference devices</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Measurements of three-junction flux qubits, both single flux qubits and coupled flux qubits, using a coupled direct current superconducting quantum interference device (dc-SQUID) for readout are reported. The measurement procedure is described in detail. We performed spectroscopy measurements and coherent manipulations of the qubit states on a single flux qubit, demonstrating quantum energy levels and Rabi oscillations, with Rabi oscillation decay time TRabi = 78 ns and energy relaxation time T1 = 315 ns. We found that the value of TRabi depends strongly on the mutual inductance between the qubit and the magnetic coil. We also performed spectroscopy measurements on inductively coupled flux qubits. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Chinese Physics B is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – SubjectFull: Superconducting quantum interference devices
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              Text: Sep2013
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