Integrated Quantum Optics

„In my team, young scientists are exploring the photonic quantum technologies of the future in full breadth”

Prof. Dr. Christine Silberhorn,
Integrated Quantum Optics

News

27.03.2026

New research work reveals fundamental limits of time-frequency measurement of optical pulses

18.03.2026

Federico Pegoraro successfully defends his doctoral dissertation!

12.03.2026

Kick-off of the DFG Research Unit FOR5044 in Goslar

12.03.2026

The AG Silberhorn strongly represented at the DPG Spring Conference

19.02.2026

New research shows how disruptive processes in integrated optical circuits can be reduced

13.02.2026

Laura Bollmers successfully defends her PhD thesis

21.12.2025

Key fabrication step for photonic quantum devices realized at wafer-scale

19.12.2025

Awarding of the “Golden Chalk” 2025

19.12.2025

Dr. Michael Rüsing verteidigt erfolgreich seine Habilitation

19.12.2025

Sensing with Quantum Light – Rückblick auf ein spannendes Seminar

07.12.2025

Silberhorn group represented at PICPICPIC conference

05.12.2025

Secret Santa with the Silberhorn group

More news

Team

People

The research group consists of more than 40 people who work together on quantum optics research.

Learn more

Research

Group organisation

The group consists of four subgroups that deal with all aspects of integrated quantum optics. This includes fabrication, simulation and design, research into applications of integrated optical quantum systems and photonic quantum computing, covering the full range of photonic quantum systems.

Infrastructure and equipment

In the working group we have access to modern clean room facilities for the production and fabrication of integrated optical circuits, for optical and electrical characterisation and for carrying out classical and quantum optical experiments.

Learn more

Quantum Technology

The "Quantum Technology" group deals with the manufacture, characterisation and process development in the production of integrated optical chips.

Learn more

Quantum Devices

The "Quantum Devices" group deals with the design, simulation, development and basic characterisation of individual integrated optical devices through to entire photonic circuits.

Learn more

Ultrafast Quantum Photonics

The "Ultrafast Quantum Group" group deals with various aspects of photonic quantum technologies - from the precise analysis of matter, more accurate measurement methods and the secure transmission of information to the networking of quantum systems.

Learn more

Photonic Quantum Computing

The "Photonic Quantum Computing" group investigates experimental architectures for the realisation of quantum computers and simulators in the field of Noisy Intermediate-Scale Quantum (NISQ) technology and researches applications for these systems.

Learn more

We are a member of PhoQS.

The Institute of Photonic Quantum Systems (PhoQS) offers us the opportunity to conduct interdisciplinary research with state-of-the-art infrastructure within an interdisciplinary environment between the disciplines of physics, electrical engineering, computer science and mathematics.

Learn more

Recent publications

Polar discontinuities, emergent conductivity, and critical twist-angle-dependent behaviour at wafer-bonded ferroelectric interfaces

A. Rogers, K. Holsgrove, N.A. Schäfer, B. Koppitz, C.J. McCluskey, S. Yedama, R. Lynch, K. Sloan, B. Porter, A. Sykes, A. Catalan Daniels, R.S. Silva, F.Y. Bruno, S.D. Seddon, H. Lu, M. Rüsing, C. Fink, P. Fahler-Muenzer, S. Fearn, S.E.M. Heutz, M. Hadjimichael, Q.M. Ramasse, M. Alexe, A. Kumar, R.G.P. McQuaid, A. Gruverman, S. Sanna, L.M. Eng, J.M. Gregg, Nature Communications 17 (2026).

DOI

Toward integrated sensors for optimized optical coherence tomography with undetected photons

F. Roeder, R. Pollmann, V. Quiring, C. Eigner, B. Brecht, C. Silberhorn, Physical Review Applied 25 (2026).

DOI

Quantum-limited detection of the arrival time and the carrier frequency of time-dependent signals

P.F. Folge, L.M. Serino, L. Mišta, B. Brecht, C. Silberhorn, J. Řeháček, Z. Hradil, Optica 13 (2026).

DOI

Practical considerations for assignment of photon numbers with SNSPDs

T. Schapeler, I. Mischke, F. Schlue, M. Stefszky, B. Brecht, C. Silberhorn, T. Bartley, APL Quantum 3 (2026).

DOI

Experimental entropic uncertainty relations in dimensions three to five

L.M. Serino, G. Chesi, B. Brecht, L. Maccone, C. Macchiavello, C. Silberhorn, Physical Review A 113 (2026).

DOI

Show all publications

Projects and Networks

List of funded projects

With our work, we are part of various networks and work on a variety of projects related to photonic quantum systems. A complete list of all funded projects (finished and ongoing) can be found in the research information system (see link).

Learn more

Quantumrepeater.net (QR.N)

In the "Quantumrepeater.Net" research collaboration - QR.N for short - 42 project partners from research and industry are working together to make decisive progress in the development and implementation of quantum networks.

Learn more

Max Planck School of Photonics

The Max Planck School of Photonics is a graduate school that trains excellent doctoral candidates in photonics, optics and quantum optics and enables them to conduct cutting-edge research through interdisciplinary research projects at Max-Planck Institutes and universities.

Learn more

Matter and Light for Quantum Computing (ML4Q)

The aim of ML4Q is to create new computer and network architectures based on the principles of quantum mechanics.

Learn more

Research group FOR5044

The DFG Research Unit FOR5044 is researching novel lithium niobate-tantalate mixed crystals that enable new applications in (quantum) optics, electronics or micromechanics.

Learn more

QSNP - Quantum Secure Network Partnership

QSNP is a project of the European Union's Quantum Flagship Initiative, which aims to develop quantum cryptography technology to secure the transmission of information over the Internet.

Learn more