| 10 May 2021 |
 alena.gradt | Dear all, this Tuesday after 5pm, Matthieu Bailleul will be present to chat with you. Hope to see many of you! =) | 08:22:32 |
| alena.gradt | * Dear all, this Tuesday after 5pm, Matthieu Bailleul will be present to chat with you. Hope to see many of you! =) | 08:22:47 |
| 11 May 2021 |
 matthieu_bailleul | Hello everyone, | 14:59:29 |
| matthieu_bailleul | My name is Matthieu Bailleul, I am CNRS reseacher at IPCMS, working in the field of nanomagnetism / spintronics. I am also member of the QMat exectutive committee, in charge of student selection, and I am teaching a small course on magnetism at Telecom Physique. I will be online in the next hour. I can answer your question. | 15:01:48 |
| matthieu_bailleul | 
Download image.png | 15:05:47 |
| matthieu_bailleul | If you have no question for the moment, a small guess : who is that ? | 15:05:56 |
| matthieu_bailleul | Pierre Weiss : He established the modern understanding of ferromagnetism in the early 1900's (which is also an elementary version of the mean field theory), and also funded the "Institut de physique" of the Université de Strasbourg in 1918. | 15:14:01 |
| matthieu_bailleul | Already heard about him ? | 15:15:13 |
| matthieu_bailleul | Magnetism plays an important role in the devleopment of qauntum/statistical physics. Do you have examples in mind ? | 15:18:40 |
| matthieu_bailleul | We can start with the theory of paramagnetism (Curie-Langevin-Brillouin)... | 15:24:54 |
| matthieu_bailleul | ...proceed with the Holstein-Primakoff transform, developped for modelling spin-waves, and at the heart of second quantization procedure. Other suggestions ? | 15:30:33 |
| matthieu_bailleul | I will stay online about 10 minutes, do not hesitate if you have questions/ remarks, or contact me later by email : matthieu.bailleul@ipcms.unistra.fr | 15:41:21 |
 Mauricio Gómez V | Hi Matthieu I have only one question that came to me recently. Can spin waves be defined in systems are not lattice-like? Can I have a spin wave in a gas for example? | 15:42:03 |
| matthieu_bailleul | Hi Mauricio, Yes, spin waves can exist in any magnetized systems. They correspond to precession-like excitation of the magnetization field \vec{M}(r,t) and they can exist as soon as this field can be defined. However, they will be (much) more intense in ferromagnetic systems. | 15:45:06 |
| matthieu_bailleul | There is some litterature about spin waves in nuclear spin systems, including Helium III | 15:46:40 |
| Mauricio Gómez V | Oh thanks that makes sense, I will check the literature on helium :-) | 15:51:24 |
| matthieu_bailleul | You are welcome, any other things you would like to discuss folks ? | 15:53:41 |
| matthieu_bailleul | Then, see you another time... maybe with a beer in hand ... | 15:56:03 |
| matthieu_bailleul | All the best | 15:56:18 |
| Mauricio Gómez V | Thanks Mathieu! | 15:59:33 |
| 28 May 2021 |
 manuel morgado | Invitation to the YIG@QMat gather, message from Denis Janković
Hello everyone,
I see from the doodle that the best venue for the meeting would be this Friday 28/05 from 7 to 8 pm.
I will be sending you a link to join on Friday morning/noon.
Again there is not any set agenda or anything, it's just to keep in touch, meet new people and see what everyone is up to, talk about your plans for next year with other people, etc...
Don't worry, it will not be another zoom meeting, you will be able to discuss one on one, or with multiple people, even maybe play some games if we do everything correctly, all of that really easily and without downloads.
I hope to see most of you this Friday !
Cheers
PS: Sorry for the short notice, I was a bit busy since last Friday when the polling closed.
| 13:02:36 |
| manuel morgado | * Invitation to the YIG@QMat gather, message from Denis Janković
Hello everyone !
As a reminder, the YIG gathering will take place this evening at 7pm.
It will take place on this link : https://gather.town/i/56zlZGBb
It is for now locked with a password, but it will be free for you to enter it in due time (around 6-6:30 pm)
Gather town is a great tool , that you can join either by downloading a client, or join directly from your browser and if you want to get accustomed to it (5 minutes) you can try it out here : https://gather.town/demo?type=original
See you this evening everyone !
PS: Sorry for the short notice, I was a bit busy since last Friday when the polling closed.
| 13:03:29 |
| 10 Jun 2021 |
|  @antoine_tartar:matrix.org set a profile picture. | 07:32:42 |
| 2 Nov 2021 |
 Shannon Whitlock | 
Download DSC_1028.JPG | 09:59:28 |
| Shannon Whitlock | a great example of QMat product placement! | 09:59:37 |
| Mauricio Gómez V | Shannon thank you very much for this excellent opportunity ;-) | 10:31:33 |
| Shannon Whitlock | The winning team included 5 Strasbourg/QMat students. Congrats! | 10:53:12 |
| 17 Nov 2021 |
| Shannon Whitlock | https://recherche.insa-strasbourg.fr/save-the-date-understanding-quantum-technologies-le-6-decembre-2021/ | 10:05:05 |
| 20 Jan 2022 |
| @antoine_tartar:matrix.org changed their display name from antoine_tartar to antoine_t. | 14:22:21 |
| @antoine_tartar:matrix.org left the room. | 14:23:16 |
