DOI: 10.1126/science.1154643. Controlled Phase Shifts with a Single Quantum Dot

Controlled Phase Shifts with a Single Quantum Dot

10.1126/science.1154643

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

Optical nonlinearities enable photon-photon interaction and lie at the heart of several proposals for quantum information processing, quantum nondemolition measurements of photons, and optical signal processing. To date, the largest nonlinearities have been realized with single atoms and atomic ensembles. We show that a single quantum dot coupled to a photonic crystal nanocavity can facilitate controlled phase and amplitude modulation between two modes of light at the single-photon level. At larger control powers, we observed phase shifts up to π/4 and amplitude modulation up to 50%. This was accomplished by varying the photon number in the control beam at a wavelength that was the same as that of the signal, or at a wavelength that was detuned by several quantum dot linewidths from the signal. Our results present a step toward quantum logic devices and quantum nondemolition measurements on a chip.

Bibliography

Fushman, I., Englund, D., Faraon, A., Stoltz, N., Petroff, P., & VucÌkovicÌ, J. (2008). Controlled Phase Shifts with a Single Quantum Dot. Science, 320(5877), 769â772.

Authors 6

Ilya Fushman (first)
Dirk Englund (additional)
Andrei Faraon (additional)
Nick Stoltz (additional)
Pierre Petroff (additional)
Jelena Vučković (additional)

References 27 Referenced 385

10.1038/35051009
10.1103/PhysRevLett.75.4710
10.1126/science.1143835
10.1038/nature06184
C. Santoriet al., Phys. Rev. Lett.97, 247401 (2006). (10.1103/PhysRevLett.97.247401) / Phys. Rev. Lett. (2006)
10.1126/science.1139831
10.1002/1521-3978(200009)48:9/11<771::AID-PROP771>3.0.CO;2-E
10.1103/PhysRevA.32.2287
J. P. Poizat, P. Grangier, Phys. Rev. Lett.70, 271 (1993). (10.1103/PhysRevLett.70.271) / Phys. Rev. Lett. (1993)
10.1038/22275
10.1038/nature02063
D. Englundet al., Nature450, 857 (2007). (10.1038/nature06234) / Nature (2007)
H. Altug, J. Vučković, Opt. Lett.30, 982 (2005). (10.1364/OL.30.000982) / Opt. Lett. (2005)
E. Waks, J. Vučković, Phys. Rev. Lett.96, 153601 (2006). (10.1103/PhysRevLett.96.153601) / Phys. Rev. Lett. (2006)
10.1103/PhysRevA.52.3489
K. N. W. J. Munro, T. Spiller, N. J. Phys.7, 137 (2005). (10.1088/1367-2630/7/1/137) / N. J. Phys. (2005)
R. Boyd Nonlinear Optics (Academic Press New York ed. 2 2003).
D. Englundet al., Phys. Rev. Lett.95, 013904 (2005). (10.1103/PhysRevLett.95.013904) / Phys. Rev. Lett. (2005)
E. Waks, J. Vučković, Phys. Rev. A73, 041803 (2006). (10.1103/PhysRevA.73.041803) / Phys. Rev. A (2006)
S. M. Tan www.qo.phy.auckland.ac.nz/qotoolbox.html.
10.1103/PhysRevLett.64.1107
10.1103/PhysRevLett.66.2593
M. A. Nielsen I. L. Chuang Quantum Computation and Quantum Information (Cambridge Univ. Press Cambridge UK 2000).
D. Englund, A. Faraon, B. Zhang, Y. Yamamoto, J. Vučković, Opt. Express15, 5550 (2007). (10.1364/OE.15.005550) / Opt. Express (2007)
A. Faraon, E. Waks, D. Englund, I. Fushman, J. Vučković, Appl. Phys. Lett.90, 073102 (2007). (10.1063/1.2472534) / Appl. Phys. Lett. (2007)
10.1038/nature03350
Financial support was provided by the Multidisciplinary University Research Incentive Center for photonic quantum information systems (Army Research Office/Intelligence Advanced Research Projects Agency Program DAAD19-03-1-0199) Office of Naval Research Young Investigator Award and NSF grant CCF-0507295. D.E. and I.F. were also supported by a National Defense Science and Engineering Graduate fellowship. Part of the work was performed at the Stanford Nanofabrication Facility of the National Nanotechnology Infrastructure Network supported by the NSF under grant ECS-9731293.

Dates

Type	When
Created	17 years, 3 months ago (May 8, 2008, 4:50 p.m.)
Deposited	1 year, 7 months ago (Jan. 10, 2024, 3:44 a.m.)
Indexed	1 month, 2 weeks ago (July 7, 2025, 6:44 a.m.)
Issued	17 years, 3 months ago (May 9, 2008)
Published	17 years, 3 months ago (May 9, 2008)
Published Print	17 years, 3 months ago (May 9, 2008)

Funders 0

None

BibTeX

@article{Fushman_2008, title={Controlled Phase Shifts with a Single Quantum Dot}, volume={320}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1154643}, DOI={10.1126/science.1154643}, number={5877}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Fushman, Ilya and Englund, Dirk and Faraon, Andrei and Stoltz, Nick and Petroff, Pierre and Vučković, Jelena}, year={2008}, month=may, pages={769–772} }

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