Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Schmidgall, E. R."'
Autor:
Winik, R., Cogan, D., Don, Y., Schwartz, I., Gantz, L., Schmidgall, E. R., Livneh, N., Rapaport, R., Buks, E., Gershoni, D.
Publikováno v:
Phys. Rev. B 95, 235435 (2017)
We perform full time resolved tomographic measurements of the polarization state of pairs of photons emitted during the radiative cascade of the confined biexciton in a semiconductor quantum dot. The biexciton was deterministically initiated using a
Externí odkaz:
http://arxiv.org/abs/1703.04380
Time resolved intensity cross-correlation measurements of radiative cascades are used for studying non-radiative relaxation processes of excited carriers confined in semiconductor quantum dots. We spectrally identify indirect radiative cascades which
Externí odkaz:
http://arxiv.org/abs/1606.04520
We study the dark exciton's behavior as a coherent physical two-level spin system (qubit) using an external magnetic field in the Faraday configuration. Our studies are based on polarization-sensitive intensity autocorrelation measurements of the opt
Externí odkaz:
http://arxiv.org/abs/1605.05748
Autor:
Schlehahn, A., Schmidt, R., Hopfmann, C., Schulze, J. -H., Strittmatter, A., Heindel, T., Gantz, L., Schmidgall, E. R., Gershoni, D., Reitzenstein, S.
Publikováno v:
Applied Physics Letters 108, 021104 (2016)
We report on the generation of single-photon pulse trains at a repetition rate of up to 1 GHz. We achieve this high speed by modulating the external voltage applied on an electrically contacted quantum dot microlens, which is optically excited by a c
Externí odkaz:
http://arxiv.org/abs/1510.07314
Publikováno v:
Phys. Rev. B 92, 201201 (2015)
We use one single, few-picosecond-long, variably polarized laser pulse to deterministically write any selected spin state of a quantum dot confined dark exciton whose life and coherence time are six and five orders of magnitude longer than the laser
Externí odkaz:
http://arxiv.org/abs/1507.06437
Autor:
Schmidgall, E. R., Schwartz, I., Cogan, D., Gantz, L., Heindel, T., Reitzenstein, S., Gershoni, D.
Publikováno v:
Appl. Phys. Lett. 106, 193101 (2015)
Semiconductor quantum dots are considered to be the leading venue for fabricating on-demand sources of single photons. However, the generation of long-lived dark excitons imposes significant limits on the efficiency of these sources. We demonstrate a
Externí odkaz:
http://arxiv.org/abs/1504.07355
Semiconductor quantum dots (QDs) have potential applications in quantum information processing due to the fact that they are potential on-demand sources of single and entangled photons. Generation of polarization-entangled photon pairs was demonstrat
Externí odkaz:
http://arxiv.org/abs/1412.0806
Autor:
Schwartz, I., Schmidgall, E. R., Gantz, L., Cogan, D., Bordo, E., Don, Y., Zielinski, M., Gershoni, D.
Publikováno v:
Phys. Rev. X 5, 011009 (2015)
We demonstrate that the quantum dot-confined dark exciton forms a long-lived integer spin solid state qubit which can be deterministically on-demand initiated in a pure state by one optical pulse. Moreover, we show that this qubit can be fully contro
Externí odkaz:
http://arxiv.org/abs/1408.2892
Autor:
Wu, Yanwen, Piper, I. M., Ediger, M., Brereton, P., Schmidgall, E. R., Hugues, M., Hopkinson, M., Phillips, R. T.
Preparation of a specific quantum state is a required step for a variety of proposed practical uses of quantum dynamics. We report an experimental demonstration of optical quantum state preparation in a semiconductor quantum dot with electrical reado
Externí odkaz:
http://arxiv.org/abs/1006.0953
Autor:
Schwartz, I., Cogan, D., Schmidgall, E. R., Don, Y., Gantz, L., Kenneth, O., Lindner, N. H., Gershoni, D.
Publikováno v:
Science, 2016 Oct . 354(6311), 434-437.
Externí odkaz:
https://www.jstor.org/stable/44710884
