Weak probe readout of coherent impurity orbital superpositions in silicon

K. L. Litvinenko, P. T. Greenland, B. Redlich, Carl Pidgeon, G. Aeppli, B. N. Murdin

Research output: Contribution to journalArticle

Abstract

Pump-probe spectroscopy is the most common time-resolved technique for investigation of electronic dynamics, and the results provide the incoherent population decay time T1. Here we use a modified pump-probe experiment to investigate coherent dynamics, and we demonstrate this with a measurement of the inhomogeneous dephasing time T2* for phosphorus impurities in silicon. thje pulse sequence produces the same information as previous coherent all-optical (photon-echo-based) techniques but is simpler. The probe signal strength is first order in the pulse area but its effect on the target state is only second order, meaning that it does not demolish the quantum information. we prpose simple extensions to the technique to measure the homogeneous dephasing time T2, or to perform tomography of the target qubit.
Original languageEnglish
Article number235207
Number of pages7
JournalPhysical Review B
Volume94
Issue number23
Early online date15 Dec 2016
DOIs
Publication statusPublished - 15 Dec 2016

Fingerprint

readout
orbitals
impurities
probes
silicon
pumps
pulses
phosphorus
echoes
tomography
photons
decay
electronics
spectroscopy

Cite this

Litvinenko, K. L., Greenland, P. T., Redlich, B., Pidgeon, C., Aeppli, G., & Murdin, B. N. (2016). Weak probe readout of coherent impurity orbital superpositions in silicon. Physical Review B, 94(23), [235207]. https://doi.org/10.1103/PhysRevB.94.235207
Litvinenko, K. L. ; Greenland, P. T. ; Redlich, B. ; Pidgeon, Carl ; Aeppli, G. ; Murdin, B. N. . / Weak probe readout of coherent impurity orbital superpositions in silicon. In: Physical Review B. 2016 ; Vol. 94, No. 23.
@article{a6a605d9998f4000ab2bccda369e6d60,
title = "Weak probe readout of coherent impurity orbital superpositions in silicon",
abstract = "Pump-probe spectroscopy is the most common time-resolved technique for investigation of electronic dynamics, and the results provide the incoherent population decay time T1. Here we use a modified pump-probe experiment to investigate coherent dynamics, and we demonstrate this with a measurement of the inhomogeneous dephasing time T2* for phosphorus impurities in silicon. thje pulse sequence produces the same information as previous coherent all-optical (photon-echo-based) techniques but is simpler. The probe signal strength is first order in the pulse area but its effect on the target state is only second order, meaning that it does not demolish the quantum information. we prpose simple extensions to the technique to measure the homogeneous dephasing time T2, or to perform tomography of the target qubit.",
author = "Litvinenko, {K. L.} and Greenland, {P. T.} and B. Redlich and Carl Pidgeon and G. Aeppli and Murdin, {B. N.}",
year = "2016",
month = "12",
day = "15",
doi = "10.1103/PhysRevB.94.235207",
language = "English",
volume = "94",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "23",

}

Litvinenko, KL, Greenland, PT, Redlich, B, Pidgeon, C, Aeppli, G & Murdin, BN 2016, 'Weak probe readout of coherent impurity orbital superpositions in silicon', Physical Review B, vol. 94, no. 23, 235207. https://doi.org/10.1103/PhysRevB.94.235207

Weak probe readout of coherent impurity orbital superpositions in silicon. / Litvinenko, K. L.; Greenland, P. T.; Redlich, B.; Pidgeon, Carl; Aeppli, G.; Murdin, B. N. .

In: Physical Review B, Vol. 94, No. 23, 235207, 15.12.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Weak probe readout of coherent impurity orbital superpositions in silicon

AU - Litvinenko, K. L.

AU - Greenland, P. T.

AU - Redlich, B.

AU - Pidgeon, Carl

AU - Aeppli, G.

AU - Murdin, B. N.

PY - 2016/12/15

Y1 - 2016/12/15

N2 - Pump-probe spectroscopy is the most common time-resolved technique for investigation of electronic dynamics, and the results provide the incoherent population decay time T1. Here we use a modified pump-probe experiment to investigate coherent dynamics, and we demonstrate this with a measurement of the inhomogeneous dephasing time T2* for phosphorus impurities in silicon. thje pulse sequence produces the same information as previous coherent all-optical (photon-echo-based) techniques but is simpler. The probe signal strength is first order in the pulse area but its effect on the target state is only second order, meaning that it does not demolish the quantum information. we prpose simple extensions to the technique to measure the homogeneous dephasing time T2, or to perform tomography of the target qubit.

AB - Pump-probe spectroscopy is the most common time-resolved technique for investigation of electronic dynamics, and the results provide the incoherent population decay time T1. Here we use a modified pump-probe experiment to investigate coherent dynamics, and we demonstrate this with a measurement of the inhomogeneous dephasing time T2* for phosphorus impurities in silicon. thje pulse sequence produces the same information as previous coherent all-optical (photon-echo-based) techniques but is simpler. The probe signal strength is first order in the pulse area but its effect on the target state is only second order, meaning that it does not demolish the quantum information. we prpose simple extensions to the technique to measure the homogeneous dephasing time T2, or to perform tomography of the target qubit.

U2 - 10.1103/PhysRevB.94.235207

DO - 10.1103/PhysRevB.94.235207

M3 - Article

VL - 94

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 23

M1 - 235207

ER -