Reinforcement Learning for Quantum Control under Physical Constraints

ArXiv 2501.14372 (2025)

Authors:

Jan Ole Ernst, Aniket Chatterjee, Tim Franzmeyer, Axel Kuhn

Supercharging Single-Atom Traps by Collisional Blockade

(2025)

Authors:

Mark IJspeert, Naomi Holland, Benjamin Yuen, Axel Kuhn

Effective models for quantum optics with multilayer open cavities

ArXiv 2410.06379 (2024)

Authors:

Astghik Saharyan, Juan-Rafael Álvarez, Axel Kuhn, Stéphane Guérin

Fabrication, Characterisation and Prospects of a High-Finesse Microcavity Created From Tapered Fused Silica Substrates

Optica Publishing Group (2024) qw3a.46

Authors:

Chloe So, Thomas Doherty, Mark IJspeert, Jan Ole Ernst, Axel Kuhn

Bursts of polarised single photons from atom-cavity sources

Journal of Physics B: Atomic, Molecular and Optical Physics IOP Publishing 56:20 (2023) 205003

Authors:

Jan Ole Ernst, Juan-Rafael Alvarez, Thomas D Barrett, Axel Kuhn

Abstract:

Photonic qubits play an instrumental role in the development of advanced quantum technologies, including quantum networking, boson sampling and measurement based quantum computing. A promising framework for the deterministic production of indistinguishable single photons is an atomic emitter coupled to a single mode of a high finesse optical cavity. Polarisation control is an important cornerstone, particularly when the polarisation defines the state of a quantum bit. Here, we propose a scheme for producing bursts of polarised single photons by coupling a generalised atomic emitter to an optical cavity, exploiting a particular choice of quantisation axis. In connection with two re-preparation methods, simulations predict ten-photon bursts coincidence count rates on the order of 1 kHz with single $^{87}\mathrm{Rb}$ atoms trapped in a state of the art optical cavity. This paves the way for novel n-photon experiments with atom-cavity sources.