Revisiting the problem of the single hole in an antiferromagnet





January 25, 2022 2:00 PM

We kindly inform you that on Tuesday, January 25, at 2 PM  on remote
access Zoom transmitted seminar

Professor Krzysztof Wohlfeld

Institute of Theoretical Physics
Faculty of Physics, University of Warsaw

will give a lecture on:

Revisiting the problem of the single hole in an antiferromagnet

The abstract and Zoom link data are enclosed below.

Please note the following important information:
* The seminar has a unique Zoom meeting-ID and password that all
registered participants receive by email.
* Participant's audio and video is muted by default. You may unmute when
* You can ask questions by raising your hand virtually after which a host
will unmute your microphone or after the talk. Please make sure to mute
the audio again once you have asked your question.
* Please show the same respect to the speaker as you would normally do in
person, including being on time for the seminar.
* We will inform you at the beginning if the talk is being recorded.

Aleksander Wittlin

Abstract of the talk

The problem of the propagation of the single hole introduced into the
antiferromagnetic ground state is one of the most studied in the
“cuprate physics”, for it can be solved in a relatively controlled
manner. Nevertheless, the possibility of simulating hole-doped
antiferromagnets in the cold atom experiments [1], have recently
triggered a renewed interest into this problem. In this talk, after a
brief introduction, I plan to give an overview of some of our most  recent
studies which try to understand the propagation of the single  hole in the
antiferromagnet using the magnon language, with a special  attention paid
to the interaction between the magnons [2-3].

[1] C. S. Chiu et al., Science 365, 251 (2019); J. Koepsell et al.,
Nature 572, 358 (2019).
[2] K. Bieniasz et al., SciPost Phys. 7, 066 (2019).
[3] P. Wrzosek et al., Phys. Rev. B 103, 035113 (2021).

IP PAS is inviting you to a scheduled Zoom meeting.
Attn.: The seminar starts at 2 PM.
Zoom session will open somewhat earlier, at aprox. 1:30.

Topic: Seminarium Fizyki Materii Skondensowanej IF PAN
The Zoom channel opens 30 minutes before the talk start.

       Every week on Tue, until Feb 22, 2022, 21 occurrence(s)

       Jan 18, 2022 13:30
       Jan 25, 2022 13:30
       Feb 1, 2022 13:30
       Feb 8, 2022 13:30
       Feb 15, 2022 13:30
       Feb 22, 2022 13:30
Please download and import the following iCalendar (.ics) files to your
calendar system.

Join Zoom Meeting

Meeting ID: 945 9568 0944
Passcode: 504517
One tap mobile
+48223065342,,94595680944#,,,,*504517# Poland
+48223073488,,94595680944#,,,,*504517# Poland

Dial by your location
       +48 22 306 5342 Poland
       +48 22 307 3488 Poland
       +48 22 398 7356 Poland
Meeting ID: 945 9568 0944
Passcode: 504517
Find your local number:

Join by Skype for Business