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Generation of frequency sidebands on single photons with indistinguishability from quantum dots

Paudel, Uttam and Burgers, Alexander P. and Steel, Duncan G. and Yakes, Michael K. and Bracker, Allan S. and Gammon, Daniel (2018) Generation of frequency sidebands on single photons with indistinguishability from quantum dots. Physical Review A, 98 (1). Art. No. 011802. ISSN 2469-9926. doi:10.1103/PhysRevA.98.011802.

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Generation and manipulation of the quantum state of a single photon is at the heart of many quantum information protocols. There has been growing interest in using phase modulators as quantum optics devices that preserve coherence. In this Rapid Communication, we have used an electro-optic phase modulator to shape the state vector of single photons emitted by a quantum dot to generate new frequency components (modes) and explicitly demonstrate that the phase modulation process agrees with the theoretical prediction at a single-photon level. Through two-photon interference measurements we show that for an output consisting of three modes (the original mode and two sidebands), the indistinguishability of the mode engineered photon, measured through the second-order intensity correlation [g^2(0)] is preserved. This work demonstrates a robust means to generate a photonic qubit or more complex state (e.g., a qutrit) for quantum communication applications by encoding information in the sidebands without the loss of coherence.

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Additional Information:© 2018 American Physical Society. (Received 20 July 2017; published 10 July 2018) This work is supported in part by NSF (PHY 1413821), AFOSR (FA9550-09-1-0457), ARO (W911NF-08-1-0487, W911NF-09-1-0406/Z855204), and DARPA (FA8750-12-2-0333). We would like to thank Aaron Ross for building the scanning Fabry-Pérot étalon.
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)FA9550-09-1-0457
Army Research Office (ARO)W911NF-08-1-0487
Army Research Office (ARO)W911NF-09-1-0406/Z855204
Defense Advanced Research Projects Agency (DARPA)FA8750-12-2-0333
Issue or Number:1
Record Number:CaltechAUTHORS:20180726-133942544
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88303
Deposited By: George Porter
Deposited On:26 Jul 2018 20:59
Last Modified:16 Nov 2021 00:25

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