Quantum dots in photonic crystals are interesting because of their potential in quantum information processing1,2 and as a testbed for cavity quantum electrodynamics. Recent advances in controlling3,4 and coherent probing5,6 of such systems open the possibility of realizing quantum networks originally proposed for atomic systems7,8,9. Here, we demonstrate that non-classical states of light can be coherently generated using a quantum dot strongly coupled to a photonic crystal resonator10,11. We show that the capture of a single photon into the cavity affects the probability that a second photon is admitted. This probability drops when the probe is positioned at one of the two energy eigenstates corresponding to the vacuum Rabi splitting, a phenomenon known as photon blockade, the signature of which is photon antibunching12,13. In addition, we show that when the probe is positioned between the two eigenstates, the probability of admitting subsequent photons increases, resulting in photon bunching. We call this process photon-induced tunnelling. This system represents an ultimate limit for solid-state nonlinear optics at the single-photon level. Along with demonstrating the generation of non-classical photon states, we propose an implementation of a single-photon transistor14 in this system.
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Loss, D. & DiVincenzo, D. P. Quantum computation with quantum dots. Phys. Rev. A 57, 120–126 (1998).
Imamoglu, A. et al. Quantum information processing using quantum dot spins and cavity QED. Phys. Rev. Lett. 83, 4204–4207 (1999).
Atature, M. et al. Quantum-dot spin-state preparation with near-unity fidelity. Science 312, 551–553 (2006).
Berezovsky, J., Mikkelsen, M. H., Stoltz, N. G., Coldren, L. A. & Awschalom, D. D. Picosecond coherent optical manipulation of a single electron spin in a quantum dot. Science 320, 349–352 (2008).
Englund, D. et al. Controlling cavity reflectivity with a single quantum dot. Nature 450, 857–861 (2007).
Srinivasan, K. & Painter, O. Linear and nonlinear optical spectroscopy of a strongly coupled microdisk–quantum dot system. Nature 450, 862–866 (2007).
Cirac, J. I., Zoller, P., Kimble, H. J. & Mabuchi, H. Quantum state transfer and entanglement distribution among distant nodes in a quantum network. Phys. Rev. Lett. 78, 3221–3224 (1997).
Felinto, D. et al. Conditional control of the quantum states of remote atomic memories for quantum networking. Nature Phys. 2, 844–848 (2006).
Moehring, D. L. et al. Entanglement of single-atom quantum bits at a distance. Nature 449, 68–71 (2007).
Hennessy, K. et al. Quantum nature of a strongly coupled single quantum dot-cavity system. Nature 445, 896–899 (2007).
Yoshie, T. et al. Vacuum Rabi splitting with a single quantum dot in a photonic crystal nanocavity. Nature 432, 200–203 (2004).
Birnbaum, K. M. et al. Photon blockade in an optical cavity with one trapped atom. Nature 436, 87–90 (2005).
Imamoglu, A., Schmidt, H., Woods, G. & Deutsch, M. Strongly interacting photons in a nonlinear cavity. Phys. Rev. Lett. 79, 1467–1470 (1997).
Chang, D. E., Sorensen, A. S., Demler, E. A. & Lukin, M. D. A single-photon transistor using nanoscale surface plasmons. Nature Phys. 3, 807–812 (2007).
Akahane, Y., Asano, T., Song, B.-S. & Noda, S. High-Q photonic nanocavity in a two-dimensional photonic crystal. Nature 425, 944–947 (2003).
Faraon, A. et al. Local quantum dot tuning on photonic crystal chips. Appl. Phys. Lett. 90, 213110 (2007).
Englund, D., Faraon, A., Zhang, B, Yamamoto, Y. & Vučković, J. Generation and transfer of single photons on a photonic crystal chip. Opt. Express 15, 5550–5558 (2007).
Englund, D. et al. Controlling the spontaneous emission rate of single quantum dots in a two-dimensional photonic crystal. Phys. Rev. Lett. 95, 013904 (2005).
Carmichael, H., Brecha, R. J. & Rice, P. R. Quantum interference and collapse of the wavefunction in cavity QED. Opt. Commun. 82, 73–79 (1991).
Santori, C. et al. Submicrosecond correlations in photoluminescence from InAs quantum dots. Phys. Rev. B 69, 205324 (2004).
Vučković, J., Englund, D., Fattal, D., Waks, E. & Yamamoto, Y. Generation and manipulation of nonclassical light using photonic crystals. Physica E 32, 466–470 (2006).
Thompson, R. J., Turchette, Q. A., Carnal, O. & Kimble, H. J. Nonlinear spectroscopy in the strong-coupling regime of cavity QED. Phys. Rev. A 57, 3084–3104 (1998).
Faraon, A., Waks, E., Englund, D., Fushman, I. & Vuckovic, J. Efficient photonic crystal cavity-waveguide couplers. Appl. Phys. Lett. 90, 073102 (2007).
Noda, S., Chutinan, A. & Imada, M. Trapping and emission of photons by a single defect in a photonic bandgap structure. Nature 407, 608–610 (2000).
Tanabe, T., Notomi, M., Kuramochi, E., Shinya, A. & Taniyama, H. Trapping and delaying photons for one nanosecond in an ultrasmall high-Q photonic-crystal nanocavity. Nature Photon. 1, 49–52 (2006).
Tan, S. M. A computational toolbox for quantum and atomic physics. J. Opt. B 1, 424–432 (1999).
Englund, D. Photonic Crystals for Quantum and Classical Information Processing. PhD. thesis, Stanford Univ. (2008).
Financial support was provided by the MURI Center for Photonic Quantum Information Systems (ARO/IARPA Program), ONR Young Investigator Award, I.F. was supported by the NDSEG fellowship and D.E. was supported by the NSF and NDSEG fellowships. Part of the work was carried out at the Stanford Nanofabrication Facility of NNIN supported by the National Science Foundation.
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Faraon, A., Fushman, I., Englund, D. et al. Coherent generation of non-classical light on a chip via photon-induced tunnelling and blockade. Nature Phys 4, 859–863 (2008). https://doi.org/10.1038/nphys1078
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