March 2025 - AttoPhys - lists.phys.ethz.ch

Furnished apartment for sublet June-Sept 2025
by Sara Gasser 31 Mar '25

31 Mar '25

Dear all Attached I forward you an advertisement from a former PhD of Johnson Group. Best Sara -- ______________________________________ Sara Gasser ETH Zurich - Dpt of Physics Institute for Quantum Electronics Auguste-Piccard-Hof 1 / HPT H2 CH-8093 Zurich Phone +41 44 633 20 03 admin-hpt(a)phys.ethz.ch Working days: Wednesday and Friday mornings -- ______________________________________ Sara Gasser ETH Zurich - Dpt of Physics Institute for Quantum Electronics Optical Nanomaterial Group Auguste-Piccard-Hof 1 / HPT H2 CH-8093 Zurich Phone +41 44 633 20 03 gassersa(a)phys.ethz.ch www.ong.ethz.ch Working days: Monday, Tuesday and Thursday -- ______________________________________ Sara Gasser ETH Zurich - Dpt of Physics Institute for Quantum Electronics Optical Nanomaterial Group Auguste-Piccard-Hof 1 / HPT H2 CH-8093 Zurich Phone +41 44 633 20 03 gassersa(a)phys.ethz.ch www.ong.ethz.ch Working days: Monday, Tuesday and Thursday

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Fwd: Updated Programm for the Symposium on Quantum Correlated Condensed and Synthetic Matter
by Sara Gasser 31 Mar '25

31 Mar '25

Dear all Please find attached the updated schedule for the upcoming Symposium this Wed and Thu. Best Sebi -- ______________________________________ Sara Gasser ETH Zurich - Dpt of Physics Institute for Quantum Electronics Optical Nanomaterial Group Auguste-Piccard-Hof 1 / HPT H2 CH-8093 Zurich Phone +41 44 633 20 03 gassersa(a)phys.ethz.ch www.ong.ethz.ch Working days: Monday, Tuesday and Thursday

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Fwd: Condensed Matter Seminar, Friday, 09.05.2025, Xiaodong Xu, Department of Physics, Department of Materials Science and Engineering University of Washington, Seattle, WA
by Sara Gasser 27 Mar '25

27 Mar '25

************************************************ Dear colleagues, Please be invited to the following Seminar: *Date: Friday, 09. May 2025* *Location: HPF G6* ** ** *Time: 11.00 – 12.15 Uhr* *Host: Atac Imamoglu* ** *Title: **FRACTIONAL QUANTUM ANOMALOUS HALL EFFECT* ** ** *Speaker: Xiaodong Xu, Department of Physics, Department of Materials Science and Engineering University of Washington, Seattle, WA* ** ** *Abstract:* The interplay between spontaneous symmetry breaking and topology can result in exotic quantum states of matter. A celebrated example is the quantum anomalous Hall (QAH) effect, which exhibits an integer quantum Hall effect at zero magnetic field due to topologically nontrivial bands and intrinsic magnetism. In the presence of strong electron-electron interactions, fractional-QAH (FQAH) effect at zero magnetic field can emerge, which is a lattice analog of fractional quantum Hall effect without Landau level formation. In this talk, I will first briefly discuss the experimental observation of FQAH effect in twisted MoTe2 bilayer, using combined magneto-optical and -transport measurements. Then I will present new developments in this direction, including the observation of nearly ideal FQAH effect, abundant Jain sequence of fractional Chern insulator states, as well as ferromagnetism and twist-angle dependent topology of higher energy flat Chern band. Direct observation of the FQAH and associated effects paves the way for researching charge fractionalization and anyonic statistics at zero magnetic field. -- ______________________________________ Sara Gasser ETH Zurich - Dpt of Physics Institute for Quantum Electronics Optical Nanomaterial Group Auguste-Piccard-Hof 1 / HPT H2 CH-8093 Zurich Phone +41 44 633 20 03 gassersa(a)phys.ethz.ch www.ong.ethz.ch Working days: Monday, Tuesday and Thursday

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Fwd: Condensed Matter Seminar, Friday, 02.05.2025, Prof. Ben Feldman, Stanford Physics Department, Stanford University, California, USA
by Sara Gasser 27 Mar '25

27 Mar '25

************************************************ Dear colleagues, Please be invited to the following Seminar: *Date: Friday, 02. May 2025* *Location: HPF G6* ** ** *Time: 11.00 – 12.15 Uhr* *Host: Atac Imamoglu* ** *Title: Mapping topological and magnetic transitions in semiconductor moiré materials*** ** ** *Speaker: Prof. Ben Feldman, Stanford Physics Department, Stanford University, California, USA* ** ** *Abstract:* Abstract: Semiconductor moiré lattices provide a flexible platform to study flat, topological bands which host a variety of closely competing many-body ground states. In this talk, I will present single-electron transistor microscopy of WSe2 bilayers at low twist angles, which reveals rich interplay between magnetism, correlations, and topology. At zero magnetic field, we observe a series of quantum anomalous Hall states and demonstrate topological phase transitions as a function of twist angle and electric field. In the Hofstadter regime at high magnetic field, we resolve a cascade of magnetic phase transitions due to crossing Hofstadter and moiré bands of differing spin. I will discuss which experimental tuning knobs are most influential in determining the preferred ground states, clarifying the respective roles played by material and moiré properties in shaping the observed symmetry breaking in different physical regimes. -- ______________________________________ Sara Gasser ETH Zurich - Dpt of Physics Institute for Quantum Electronics Optical Nanomaterial Group Auguste-Piccard-Hof 1 / HPT H2 CH-8093 Zurich Phone +41 44 633 20 03 gassersa(a)phys.ethz.ch www.ong.ethz.ch Working days: Monday, Tuesday and Thursday

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Fwd: Condensed Matter Seminar, Friday, 30.04.2025, Prof. Hakan Türeci, Princeton University
by Sara Gasser 27 Mar '25

27 Mar '25

************************************************ Dear colleagues, Please be invited to the following Seminar: *Date: Friday, 30. April 2025* *Location: HPF G6* ** ** *Time: 11.00 – 12.15 Uhr* *Host: Atac Imamoglu* ** *Title: Computing with Physical Systems: Opportunities and Fundamental Limits* ** ** *Speaker: Prof. Hakan Türeci, Princeton University* ** *Abstract:* Recent strides in machine learning have shown that computation can be performed by practically any controllable physical system that responds to physical stimuli encoding data [1]. This perspective opens new frontiers for computational approaches using Physical Neural Networks (PNNs) and provides a framework to deepen our understanding of their biological counterparts—neural circuits in living organisms. To fully leverage this potential, PNNs must be trained with a nuanced awareness of the physical nature of signal and noise, where signal is defined relative to the specific computational task. This perspective aligns closely with approaches to determining the fundamental limits to sensing as set by quantum theory but extends these ideas to a new level to encompass broader computational opportunities. I will share insights from our approach to this emerging domain of inquiry and highlight some recent results [2, 3, 4]. Based on work with Fangjun Hu, Saeed A. Khan, Gerasimos Angelatos, Marti Vives, Esin Türeci, Graham E. Rowlands, Guilhem J. Ribeill, Nicholas Bronn. [1] Aspen Center for Physics Winter Conference, Computing with Physical Systems, https://computingwithphysicalsystems.com/2024/ [2] F. Hu et al. `Tackling Sampling Noise in Physical Systems for Machine Learning Applications: Fundamental Limits and Eigentasks." Phys. Rev. X 13, 041020 (2023). [3] S. A. Khan et al., `A neural processing approach to quantum state discrimination", arxiv:2409.03748. [4] F. Hu et al. `Overcoming the Coherence Time Barrier in Quantum Machine Learning on Temporal Data", Nature Commun. 15, 7491 (2024). -- ______________________________________ Sara Gasser ETH Zurich - Dpt of Physics Institute for Quantum Electronics Optical Nanomaterial Group Auguste-Piccard-Hof 1 / HPT H2 CH-8093 Zurich Phone +41 44 633 20 03 gassersa(a)phys.ethz.ch www.ong.ethz.ch Working days: Monday, Tuesday and Thursday

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Fwd: Condensed Matter Seminar, Friday, 04.04.2025, Dr. Patrick Knüppel, Cornell University
by Sara Gasser 27 Mar '25

27 Mar '25

************************************************ Dear colleagues, Please be invited to the following Seminar: *Date: Friday, 04. April 2025* *Location: HPF G6* ** ** *Time: 11.00 – 12.15 Uhr* *Host: Atac Imamoglu* ** *Title: Tunable Topology and Correlated States in Twisted Homobilayer Transition Metal Dichalcogenides* ** ** *Speaker: Dr. Patrick Knüppel, Cornell University* ** *Abstract:* We create honeycomb superlattice structures in TMD moiré materials as model systems to study magnetism, electronic correlations and topology. In twisted MoTe_2 , we realize topological flat bands that closely resemble the lowest Landau level but in the absence of an external magnetic field. We present evidence for integer and fractional Chern states [1], which are the lattice analogues of integer and fractional quantum Hall states at zero magnetic field. We further explore correlated states in twisted WSe_2 and demonstrate their tunability with twist angle, electric and magnetic fields [2]. By relating these findings to the continuum model valence band structure, we provide an understanding for our observations and offer guidance for designing homobilayer moiré materials -- ______________________________________ Sara Gasser ETH Zurich - Dpt of Physics Institute for Quantum Electronics Optical Nanomaterial Group Auguste-Piccard-Hof 1 / HPT H2 CH-8093 Zurich Phone +41 44 633 20 03 gassersa(a)phys.ethz.ch www.ong.ethz.ch Working days: Monday, Tuesday and Thursday

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Fwd: Information on Cooling Water System Work in Lab HPT E13 on March 27, 2025
by Lukas Gallmann 25 Mar '25

25 Mar '25

-------- Forwarded Message -------- Subject: Information on Cooling Water System Work in Lab HPT E13 on March 27, 2025 Date: Tue, 25 Mar 2025 10:05:19 +0100 From: Dursun Aydin <aydind(a)phys.ethz.ch> To: infrainfohpf-hpt(a)lists.phys.ethz.ch *Liebe HPT E Stock -Laborbetreiber und -Nutzer,* hiermit möchte ich euch über kurzfristig anstehende Arbeiten im HPT-Gebäude im Labor HPT E13 informieren. Am Donnerstag, den 27. März 2025, zwischen 07:30 und 10:30 Uhr, werden im HPT E13 nicht lang andauernde Arbeiten im Kühlwassernetz vorgenommen. Dazu wird der Kühlwasserkreislauf ca. für 2-3 Stunden abgestellt. Falls ihr Fragen habt oder die Arbeiten zu einer unverhältnismässigen Störung führen, könnt ihr euch jederzeit gerne an mich wenden. Vielen Dank für euer Verständnis. *Dear HPT E Stock Lab Operators and Users,* I would like to inform you about upcoming urgent work in the HPT building in lab HPT E13. On Thursday, March 27, 2025, between 07:30 and 10:30 AM, short-term work will be carried out on the cooling water system in HPT E13. During this time, the cooling water circuit will be shut down for approximately 2-3 hours. If you have any questions or if the work leads to disproportionate disruptions, please feel free to contact me at any time. Thank you for your understanding. Freundliche Grüsse Best Regards Dursun Aydin attachment.png Dursun Aydin Laboratory Support Group Department D-Phys HPF C 7 Otto-Stern-Weg 1 8093 Zürich +41 44 633 26 60 aydind(a)phys.ethz.ch gase(a)phys.ethz.ch

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Fwd: New Frontiers in Ultrafast Terahertz Spectroscopy
by Sara Gasser 24 Mar '25

24 Mar '25

Dear colleagues, We hope this message finds you well. We are happy to announce a thematic workshop titled "New Frontiers in Ultrafast Terahertz Spectroscopy" as part of the FisMat 2025 Conference, which will take place in Venice from July 7 to July 11, 2025. More details about the event can be found here: https://eventi.cnism.it/fismat2025 Our goal is to bring together researchers from different areas of ultrafast terahertz science in a setting of 50-60 people, including senior and junior researchers. The deadline for submitting your abstract for FisMat 2025 is march the 31th. This is a just reminder. Please send your contribution within this date and in this way, it will be possible to define the conference program early by leaving time to the participants to organize their journey in Venice. Logistic informations will be provided when the program will be published. Submission can be made starting from the home page of the conference site: https://eventi.cnism.it/fismat2025 For any questions please contact the following address: congresses(a)cnism.it Best regards, Mattia Udina CESQ-ISIS Strasbourg and MPQ-Paris Cité Martina Basini ETH Zurich Jacopo Fiore Sapienza University of Rome -- ______________________________________ Sara Gasser ETH Zurich - Dpt of Physics Institute for Quantum Electronics Optical Nanomaterial Group Auguste-Piccard-Hof 1 / HPT H2 CH-8093 Zurich Phone +41 44 633 20 03 gassersa(a)phys.ethz.ch www.ong.ethz.ch Working days: Monday, Tuesday and Thursday

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Fwd: ATTO X 2025: Fifth announcement
by Lukas Gallmann 21 Mar '25

21 Mar '25

-------- Forwarded Message -------- Subject: ATTO X 2025: Fifth announcement Date: Fri, 21 Mar 2025 15:59:41 +0100 From: ATTO X <announcements(a)attox.se> Reply-To: ATTO X <announcements(a)attox.se> To: Lukas Gallmann <galukas(a)ethz.ch> ATTO X 2025: Fifth announcement Registration is now open! ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ July 6-11, 2025 in Lund, Sweden Dear colleagues, We are excited to announce that *registration is now open* for *ATTO X, the 10th International Conference on Attosecond Science and Technology*, which takes place on *July 6-11, 2025, in Lund, Sweden*. Please go to www.attox.se/registration <https://gantrack.com/t/l/9010357/0_NDMwNTYyNzQ2NTQ3Mg==/> to register for the conference before the early-bird deadline. We have secured a limited number of rooms at a reduced rate for conference participants at two hotels that are easily reached by tram from the conference venues. You find the hotel information, as well as the reduced rate reservation links, at www.attox.se/accommodation <https://gantrack.com/t/l/9010358/0_NDMwNTYyNzQ2NTQ3Mg==/>. More detailed information about ATTO X can be found on the main conference website (www.attox.se <https://gantrack.com/t/l/9010359/0_NDMwNTYyNzQ2NTQ3Mg==/>), and the local organizers can be contacted via e-mail at loc(a)attox.se. We are looking forward to welcoming you all to Lund! Sincerely, /The Local Organizing Committee of ATTO X, consisting of:/ Per Eng-Johnsson (chair), Anne-Lise Viotti (chair), Anne L'Huillier, Cord Arnold, David Busto, Eva Lindroth, Johan Mauritsson, László Veisz, Marcus Dahlström, Mathieu Gisselbrecht, Raimund Feifel /*Disclaimer: *This announcement regarding the ATTO X conference is sent to a distribution list compiled from the lists of the two previous ATTO conferences. In case you are not interested in receiving future information regarding ATTO X, please unsubscribe using the link at the bottom of this e-mail./ Contact the local organizing committee <mailto:loc@attox.se> View online <https://gansub.com/t/v/0_NDMwNTYyNzQ2NTQ3Mg==/> | Unsubscribe <https://gansub.com/subscription/0_NDMwNTYyNzQ2NTQ3Mg==/unsubscribe/>

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Fwd: Fwd: EPT summer camp 2025: last call
by Lukas Gallmann 21 Mar '25

21 Mar '25

-------- Forwarded Message -------- Subject: Fwd: EPT summer camp 2025: last call Date: Fri, 21 Mar 2025 11:04:32 +0100 From: bondarv <bondarv(a)phys.ethz.ch> Dear Colleagues, it would be very nice if you could distribute this advertisement among PhD students and postdocs of your groups. Its a very nice training event for didactics and transversal skills for research. Diversity of the represented research groups has always resulted in a great beneficial experiences there. Thank you very much in advance and I am wishing you a beautiful weekend! Sincerely, Vira Bondar, on behalf of the Org Team. ------------------------------------------------------------------------ Dear All, this is a last call for registration for the EPT Summer Camp 2025, which is closing on 31.03.2025. The event is dedicated to engaging inclusive teaching and transversal skills for teaching, research and beyond. The camp is a great opportunity to enjoy hands-on workshops with our expert coaches and get inspired by special guests. It is is also a possibility to build connections with your peers and teaching colleagues, benefiting from exchange, new friendships and common experiences! Target Audience: PhD students and postdocs Date / Venue: May 25-28, 2025, Mattli Antoniushaus in Morschach. Impressions from the Last Camp: https://www.youtube.com/watch?v=eE6WedD4brI&embeds_referring_euri=https%3A%… <https://www.youtube.com/watch?v=eE6WedD4brI&embeds_referring_euri=https%3A%…> Registration: https://ept.ethz.ch/camp2025 *Topics/workshops:* * Basics of teaching and learning * Pedagogic psychology for classrooms * Emotions in engineering education * Inclusion * How failure drives learning * Augmented Reality for teaching physics * Engaging teaching / students' activation techniques * Class management & Related * Eureka Moments - Transforming Teaching Through Active Experimentation * Fundamentals for successful presentation * AI for science communication * Career opportunities beyond academia * Self- and Time-management for teaching, research and beyond * Transversal skills through 3T Play *Keynotes and guests:* * Prof. Günther Dissertori (Rector ETH Zurich) * Prof. Johanna Lönngren (Emotions & Sustainability Research, Umea University, Sweden) * Prof. Sarah Hofer (Pedagogical Psychology, TMU Munich) * Prof. Manu Kapur (Learning Sciences & Higher Education / Director of Singapor ETH center) * Dr. Andreas Lichtenberger (Teaching Diploma program / ETH Zurich) * Dr. Roland Tormey (Teaching Training Center, EPFL) * Dr. Joelyn de Lima (Teaching Training Center, EPFL) * Prof. Daniela Rupp and Dr. Andreas Eggenberger (Innovative Lab Teaching / P+, D-PHYS, ETH Zurich) * Dr. Efrain Segarra (Paul Scherrer Institute) * Yevheniia Kholina (D-MATL, ETH Zurich) * Kirsten Williamson (CEO "Petrus“) * Sandra Bajus (CEO "Bajus") *Well-being:* Morning yoga with mountains view on rooftop terrace *Evening shows: * * Prof. Michaels Thomas (D-BIOL, ETH Zurich): Cooking Science * Music jam session and concert of bandurist: Yaroslav Dzhus Join us for this beautiful experience in splendit Morschach mountains! Sincerely, Vira Bondar, on behalf of the Organizing Committee.

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2025

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