First Circular


Dear colleagues,

we want to bring to your attention the 6th international "Workshop on the Sign Problem in QCD and Beyond" (Sign '18). The Workshop will be held at Bielefeld University from 10-14 Sep. 2018, Bielefeld, Germany. The Workshop is concerned with the sign problem in QCD and other theories that exhibit a serious sign problem in numerical calculations. Although a generic solution to the sign problem may not exist, several strategies to deal with a sign problems have been proposed. The workshop wants to stimulate the exchange between practitioners dealing with the sign problem in numerical simulations from different fields. The workshop thus covers a broad range of topics, including

*QCD and Related Theories
*Nuclear Many Body
*Quantum Spin Models
*Dual Formulations
*Langevin/Lefschetz Approaches
*Tensor Network/Machine Learning Approaches
*Algorithmic Developments

Further information can be found at the workshop web page:

The program includes invited key speakers, contributed talks, as well as a poster session.

To register, please go to the home page and follow the link to Registration. The registration fee is 50 Euros, to be paid in cash on arrival. Financial support (registration fee and cost of accommodation) will be available for 10 selected students. To apply for financial support please send an email and one letter of recommendation to Registration and abstract submission will remain open until 05 Aug. 2018.

The conference will take place at the Campus of Bielefeld University. Information on how to reach the campus is provided on the website. In case you require a visa to enter Germany, please contact us for an invitation letter.

The conference starts in the morning of Monday the 10th and ends at noon on Friday the 14th. Information about accommodation, including hotels where we have blocked rooms at a preferential rate, can be found on the conference website.

In case you need to get in contact with us, please write a mail to

We would be grateful if you could forward this message to interested colleagues at your Institution.

We look forward to welcome you in Bielefeld.

The local organizers Christian Schmidt and Wolfgang Unger