About us

We study fundamental physics and applications of quantum states of light consisting of several 10, 100 and 1000 photons. This scale is crucial for demonstrating true quantum improvement over classical systems in many areas, including metrology, computation and communication.

 

Re­search

The MQO group's research can be divided into three areas:

  • Development of the enabling technology (in the cleanroom)
  • Cryogenic nonlinear optoelectronics (in the optics lab)
  • Advanced quantum photonic data processing (on the computer)

Learn more on our research page.

News

04.12.2025

Hon­our­ing the gradu­ates of the group at the fac­ulty ce­re­mony

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24.11.2025

Nik­las Lam­berty re­ceives prize for out­stand­ing Mas­ter's thes­is

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20.11.2025

New pub­lic­a­tion on cryo­gen­ic single-photon gen­er­a­tion

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13.10.2025

Wel­come Umair Ashraf Mir

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02.10.2025

Fi­nal sym­posi­um of the SFB/TRR 142

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28.09.2025

MQO at EU­CAS 2025 in Porto, Por­tugal

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01.09.2025

New Pub­lic­a­tion: Jit­ter in photon-num­ber-re­solved de­tec­tion

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28.08.2025

Con­grat­u­la­tions to Sven Mar­ginean

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22.08.2025

Sum­mer party 2025 & Fre­derik's farewell party

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20.08.2025

Con­grat­u­la­tions to Ger­rit Claaßen

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More news

MQO in a nut­shell

Hut Seminars

In 2022 we started a tradition to go on "Hut seminars".

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Further Material

Here you can find additional materials (downloads, project videos, etc.) from our group.

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Cryogenic Spontaneous Parametric Down-Conversion

Do you want to know how we performed the coldest SPDC experiment ever?

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All-optical readout of an SNSPD

Here we go into detail about all-optical readout of an SNSPD.

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Electro-Optic Modulators

Here we go into detail about our types of electro-optic modulators.

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Homodyne Detection with SNSPDs

Here we show how we did homodyne detection with SNSPDs.

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Photon-number resolution with SNSPDs

Here we show you how to gain photon-number resolution with SNSPDs.

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At a glance

Pub­lic­a­tions

Check out all of our publications.

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People

We are a diverse team, that works on different topics and projects. Together we find answers and are looking for people to enrich our team. Take a look at our job advertisments, we look forward to hearing from you.

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Quantum sci­ence

Investigating the smallest particles of light has been a research focus at Paderborn University for many years. Recognized experts conduct excellent research in order to shape the future through concrete applications. In doing so, they are making a decisive contribution to quantum research in Germany and beyond.

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So­cial Me­dia

We regularly post on Instagram and YouTube.

Net­works and Pro­jects

PhoQS

Institute for Photonic Quantum Systems

ERC: European Re­search Coun­cil

QuESADILLA: Quantum Engineering Superconducting Array Detectors in Low-Light Applications

TRR 142: Tailored Non­lin­ear Photon­ics: From Fun­da­ment­al Con­cepts to Func­tion­al Struc­tures

CeOPP: Cen­ter for Op­to­elec­tron­ics and Photon­ics

ISOQC

Quantum communication with integrated optics in the context of superconducting electronics

QPIC-1

Photonic Integrated Quantum Computer

PhoQuant

Photonic quantum computers

No news available.

Con­tact

Prof. Dr. Tim Bartley

Mesoscopic Quantum Optics

Room P10.2.126
Paderborn University



+49 5251 60-7110 Send E-Mail Directions