Greenhorn Meeting 2026

Session

Quantumoptics and Spectroscopy

7 Oct 2026, 10:00

Institute for Quantum Physics

39. Mid-infrared sensing with induced coherence in Rb vapor ensemble

Kaveri Jagtap (Leibniz Universität Hannover)

07/10/2026, 10:00

Talk

Measurements are the cornerstone of physics. Precision measurements and sensing at mid-infrared (MIR) wavelengths remain complicated by the limited availability of low-noise detectors between 1000 and 10000 nm. Warm alkali metal vapors have long served as a versatile, low-cost platform for spectroscopy and nonlinear optics.

Here we explore hot atomic rubidium vapor to drive the...

14. Integration of Flip-Chip Photodiodes on Lithium Tantalate on Insulator (LTOI) Photonic Chips

Luise Heiland

07/10/2026, 10:15

Talk

Quantum computers based on neutral atoms hold great potential for revolutionary discoveries across research and industry. However, scaling these systems requires precise, real-time control of laser power to manipulate atomic qubits reliably. Integrated photonics – especially based on electro-optically active materials such as LTOI – has emerged as a platform to pulse laser light used to...

25. Probing the Standard Model with Atomic Deuterium

Sudhir Suresh Babu (Max Planck Institute of Quantum Optics)

07/10/2026, 10:30

Talk

Probing the Standard Model with Atomic Deuterium

Hydrogen-like systems have a unique advantage for probing bound-state QED, as their energies can be computed from first principles. By comparing the transition frequencies of various energy levels, one can test the consistency of QED and also extract fundamental quantities, such as the Rydberg constant and nuclear radii, that are not...

36. Performance Evaluation of a Vacuum-Fluctuation Quantum Random Number Generator According to AIS 20/31

Mehrzad Firoozi (Leibniz Universität Hannover)

07/10/2026, 10:45

Talk

Quantum random number generators (QRNGs) exploit inherently unpredictable quantum effects to generate genuine randomness, making them valuable for cryptographic and scientific applications. One promising approach is based on homodyne detection of the vacuum state. In this work, we develop a QRNG using this technique and evaluate both the raw and postprocessed random sequences using the AIS...

8. Decoding Quantum Mechanics Textbooks: A Roadmap for Learners, Researchers and Young Educators

Yajie Liang

08/10/2026, 14:15

Talk

Quantum mechanics (QM) textbooks shape our foundational understanding as students, serve as our primary references as researchers, and guide our strategies as teaching assistants. But how well do these texts actually reflect the modern quantum landscape? This study analyzes the didactic structures of university-level QM textbooks across nations and eras by mapping the placement of mathematical...