Demonstration and modeling of time-bin entangled photons from a quantum dot in a nanowire
Source abstract
Abstract
Resonant excitation of the biexciton state in an InAsP quantum dot by a phase-coherent pair of picosecond pulses allows preparing time-bin entangled pairs of photons via the biexciton–exciton cascade. We show that this scheme can be implemented for a dot embedded in an InP nanowire. The underlying physical mechanisms can be represented and quantitatively analyzed by an effective three-level open system master equation. Simulation parameters including decay and intensity dependent dephasing rates are extracted from experimental data, which in turn let us predict the resulting entanglement and optimal operating conditions.
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Research context
OpenAlex topics: Semiconductor Quantum Structures and Devices · Quantum Information and Cryptography · Quantum and electron transport phenomena
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute for Theoretical Physics, University of Innsbruck, Innsbruck, Austria
Institute for Experimental Physics, University of Innsbruck, Innsbruck, Austria
National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada
Parity Quantum Computing GmbH, Innsbruck, Austria
Funding
Austrian Science Fund · Defense Advanced Research Projects Agency · Hauser-Raspe foundation and European Union’s Horizon · Hauser-Raspe foundation
References (24)
Show source-provided references
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