Coherent creation and destruction of orbital wavepackets in ​Si:​P with electrical and optical read-out

K. L. Litvinenko; E. Bowyer; P. T. Greenland; N Stavrias; Juerong Li; Russell Gwilliam; B. J. Villis; G Matmon; M. Pang; Britta Redlich; A. F. G.  van der Meer; Carl R Pidgeon; G Aeppli; Benedict N. Murdin

doi:10.1038/ncomms7549

Coherent creation and destruction of orbital wavepackets in Si:P with electrical and optical read-out

K. L. Litvinenko, E. Bowyer, P. T. Greenland, N Stavrias, Juerong Li, Russell Gwilliam, B. J. Villis, G Matmon, M. Pang, Britta Redlich, A. F. G. van der Meer, Carl R Pidgeon, G Aeppli, Benedict N. Murdin

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Abstract

The ability to control dynamics of quantum states by optical interference, and subsequent electrical read-out, is crucial for solid state quantum technologies. Ramsey interference has been successfully observed for spins in silicon and nitrogen vacancy centres in diamond, and for orbital motion in InAs quantum dots. Here we demonstrate terahertz optical excitation, manipulation and destruction via Ramsey interference of orbital wavepackets in Si:P with electrical read-out. We show milliradian control over the wavefunction phase for the two-level system formed by the 1s and 2p states. The results have been verified by all-optical echo detection methods, sensitive only to coherent excitations in the sample. The experiments open a route to exploitation of donors in silicon for atom trap physics, with concomitant potential for quantum computing schemes, which rely on orbital superpositions to, for example, gate the magnetic exchange interactions between impurities.

Original language	English
Article number	6549
Journal	Nature Communications
Volume	6
Early online date	20 Mar 2015
DOIs	https://doi.org/10.1038/ncomms7549
Publication status	Published - 2015

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Litvinenko, K. L., Bowyer, E., Greenland, P. T., Stavrias, N., Li, J., Gwilliam, R., Villis, B. J., Matmon, G., Pang, M., Redlich, B., van der Meer, A. F. G., Pidgeon, C. R., Aeppli, G., & Murdin, B. N. (2015). Coherent creation and destruction of orbital wavepackets in Si:P with electrical and optical read-out. Nature Communications, 6, Article 6549. https://doi.org/10.1038/ncomms7549

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title = "Coherent creation and destruction of orbital wavepackets in Si:P with electrical and optical read-out",

abstract = "The ability to control dynamics of quantum states by optical interference, and subsequent electrical read-out, is crucial for solid state quantum technologies. Ramsey interference has been successfully observed for spins in silicon and nitrogen vacancy centres in diamond, and for orbital motion in InAs quantum dots. Here we demonstrate terahertz optical excitation, manipulation and destruction via Ramsey interference of orbital wavepackets in Si:P with electrical read-out. We show milliradian control over the wavefunction phase for the two-level system formed by the 1s and 2p states. The results have been verified by all-optical echo detection methods, sensitive only to coherent excitations in the sample. The experiments open a route to exploitation of donors in silicon for atom trap physics, with concomitant potential for quantum computing schemes, which rely on orbital superpositions to, for example, gate the magnetic exchange interactions between impurities.",

author = "Litvinenko, {K. L.} and E. Bowyer and Greenland, {P. T.} and N Stavrias and Juerong Li and Russell Gwilliam and Villis, {B. J.} and G Matmon and M. Pang and Britta Redlich and {van der Meer}, {A. F. G.} and Pidgeon, {Carl R} and G Aeppli and Murdin, {Benedict N.}",

note = "{"}We gratefully acknowledge the support of the EPSRC-UK (COMPASSS, grant reference EP/H026622 and COTS, grant reference EP/J017671/1) and the FOM-NL in providing the required beam time on FELIX.{"}",

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T1 - Coherent creation and destruction of orbital wavepackets in Si:P with electrical and optical read-out

AU - Litvinenko, K. L.

AU - Bowyer, E.

AU - Greenland, P. T.

AU - Stavrias, N

AU - Li, Juerong

AU - Gwilliam, Russell

AU - Villis, B. J.

AU - Matmon, G

AU - Pang, M.

AU - Redlich, Britta

AU - van der Meer, A. F. G.

AU - Pidgeon, Carl R

AU - Aeppli, G

AU - Murdin, Benedict N.

N1 - "We gratefully acknowledge the support of the EPSRC-UK (COMPASSS, grant reference EP/H026622 and COTS, grant reference EP/J017671/1) and the FOM-NL in providing the required beam time on FELIX."

PY - 2015

Y1 - 2015

N2 - The ability to control dynamics of quantum states by optical interference, and subsequent electrical read-out, is crucial for solid state quantum technologies. Ramsey interference has been successfully observed for spins in silicon and nitrogen vacancy centres in diamond, and for orbital motion in InAs quantum dots. Here we demonstrate terahertz optical excitation, manipulation and destruction via Ramsey interference of orbital wavepackets in Si:P with electrical read-out. We show milliradian control over the wavefunction phase for the two-level system formed by the 1s and 2p states. The results have been verified by all-optical echo detection methods, sensitive only to coherent excitations in the sample. The experiments open a route to exploitation of donors in silicon for atom trap physics, with concomitant potential for quantum computing schemes, which rely on orbital superpositions to, for example, gate the magnetic exchange interactions between impurities.

AB - The ability to control dynamics of quantum states by optical interference, and subsequent electrical read-out, is crucial for solid state quantum technologies. Ramsey interference has been successfully observed for spins in silicon and nitrogen vacancy centres in diamond, and for orbital motion in InAs quantum dots. Here we demonstrate terahertz optical excitation, manipulation and destruction via Ramsey interference of orbital wavepackets in Si:P with electrical read-out. We show milliradian control over the wavefunction phase for the two-level system formed by the 1s and 2p states. The results have been verified by all-optical echo detection methods, sensitive only to coherent excitations in the sample. The experiments open a route to exploitation of donors in silicon for atom trap physics, with concomitant potential for quantum computing schemes, which rely on orbital superpositions to, for example, gate the magnetic exchange interactions between impurities.

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DO - 10.1038/ncomms7549

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SN - 2041-1723

VL - 6

JO - Nature Communications

JF - Nature Communications

M1 - 6549

ER -

Coherent creation and destruction of orbital wavepackets in ​Si:​P with electrical and optical read-out

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Coherent creation and destruction of orbital wavepackets in Si:P with electrical and optical read-out