Publications by authors named "T Seidelmann"
Entangled photon pairs are essential for a multitude of quantum photonic applications. To date, the best performing solid-state quantum emitters of entangled photons are semiconductor quantum dots operated around liquid-helium temperatures. To favor the widespread deployment of these sources, it is important to explore and understand their behavior at temperatures accessible with compact Stirling coolers.
View Article and Find Full Text PDFEntangled photon pairs are key to many novel applications in quantum technologies. Semiconductor quantum dots can be used as sources of on-demand, highly entangled photons. The fidelity to a fixed maximally entangled state is limited by the excitonic fine-structure splitting.
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- The quest for an ideal single-photon source focuses on the best way to excite quantum emitters.
- Researchers have recently found that using two red-detuned laser pulses can excite emitters effectively, even when each pulse alone doesn't significantly increase the upper-level population.
- This new "swing-up of quantum emitter population" (SUPER) method can be experimentally implemented with precise pulse shaping and offers the potential for generating high-purity photon sources that can produce photons at a higher rate.
Accuracy of the Quantum Regression Theorem for Photon Emission from a Quantum Dot.
Phys Rev Lett
September 2021
The quantum regression theorem (QRT) is the most widely used tool for calculating multitime correlation functions for the assessment of quantum emitters. It is an approximate method based on a Markov assumption for environmental coupling. In this Letter we quantify properties of photons emitted from a single quantum dot coupled to phonons.
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