Demonstration and modeling of time-bin entangled photons from a quantum dot in a nanowire
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 01, 2022
- Source ID
- 10.1063/5.0081874
Entities
People
- Dan Dalacu
- Florian Kappe
- Gregor Weihs
- Helmut Ritsch
- Laurin Ostermann
- Maximilian Prilmüller
- Philip J Poole
- Philipp Aumann
- Wolfgang Lechner
Organizations
- Austrian Science Fund
- Defense Advanced Research Projects Agency
- National Research Council Canada
- Parity Quantum Computing GmbH
- University of Innsbruck