Mai 2025 - tqo - lists.physik.tu-darmstadt.de

Fwd: Invitation/reminder to talk from Juan Torres (ICFO)
by Enno Giese 14 Mai '25

14 Mai '25

FYI -------- Weitergeleitete Nachricht -------- Betreff: Invitation/reminder to talk from Juan Torres (ICFO) Datum: Tue, 13 May 2025 21:47:27 +0200 Von: Gräfe, Markus <markus.graefe(a)tu-darmstadt.de> An: Giese, Enno <enno.giese(a)tu-darmstadt.de>, Reinhold Walser <reinhold.walser(a)physik.tu-darmstadt.de>, Gerhard Birkl <gerhard.birkl(a)physik.tu-darmstadt.de>, Thomas Halfmann <thomas.halfmann(a)physik.tu-darmstadt.de>, Reinhold Walser <reinhold.walser(a)physik.tu-darmstadt.de>, Bagnoud, Vincent <vincent.bagnoud(a)tu-darmstadt.de>, Kuschel, Stephan <stephan.kuschel(a)tu-darmstadt.de>, Merian, Andreas <andreas.merian(a)biophotonics.tu-darmstadt.de>, Frosch, Torsten <torsten.frosch(a)biophotonics.tu-darmstadt.de>, Bernhard Urbaszek <bernhard.urbaszek(a)pkm.tu-darmstadt.de>, Norbert Pietralla <pietralla(a)ikp.tu-darmstadt.de>, Robert Roth <robert.roth(a)physik.tu-darmstadt.de>, Preu, Sascha <sascha.preu(a)tu-darmstadt.de> Dear all, I am pleased to cordially invite you to a talk by Juan Torres from ICFO, Barcelona. Please find the title and abstract attached. The talk will take place on *May 15th at 15:30 in seminar rooms 4 and 23 in L6|01 (Lichtwiese). *I will be happy to see you there. Please share this invitation in your groups so that interested people can join. Thank you very much. Best, Markus -- Prof. Dr. Markus Gräfe Experimental Solid State Quantum Optics Institute for Applied Physics Technical University of Darmstadt Otto-Berndt-Straße 3 64287 Darmstadt Germany +49 6151 16-20451 markus.graefe(a)tu-darmstadt.de <mailto:markus.graefe@tu-darmstadt.de> https://www.iap.tu-darmstadt.de/efq <https://www.iap.tu-darmstadt.de/efq>

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Physikalisches Kolloquium 23.05.25_Precision spectroscopy of the simplest molecule: a novel approach to fundamental physics topics_Prof. Ph.D. Stephan Schiller
by kraeckmann 12 Mai '25

12 Mai '25

Sehr geehrte Damen und Herren, hiermit möchten wir das Physikalische Kolloquium am Freitag, 23.05.2025 um 14:00 Uhr mit, Prof. Ph.D. Stephan Schiller, Heinrich-Heine-Universität Düsseldorf, ankündigen. Titel: Precision spectroscopy of the simplest molecule: a novel approach to fundamental physics topics Wir bitten um Weiterleitung und Aushang und hoffen auf rege Teilnahme. Ort: ZKS-Uhrturmhörsaal, S2|08, Raum 171, Hochschulstraße 4, 64289 Darmstadt ------------ Ladies and gentlemen, We are pleased to announce the lecture of Prof. Ph.D. Stephan Schiller, Heinrich-Heine-Universität Düsseldorf, at the “Physikalisches Kolloquium” on Friday, 23.05.2025 at 2 pm. Title: Precision spectroscopy of the simplest molecule: a novel approach to fundamental physics topics Please forward and post this invitation. We look forward to a high attendance. Venue: ZKS-Uhrturmhörsaal, S2|08, Raum 171, Hochschulstraße 4, 64289 Darmstadt ------------ Beste Grüße / Best regards Martine Kräckmann -- Martine Kräckmann [sie/ihr; she/her] Sekretariat Prof. Dr. Barbara Drossel Prof. PhD Marco Durante Prof. Dr. Bernhard Urbaszek Technische Universität Darmstadt Institut für Physik Kondensierter Materie FB 5 Physik - S2|07 16 Hochschulstraße 6 64289 Darmstadt Tel.: 06151 16-21324 Fax: 06151 16-21322 http://www.ipkm.tu-darmstadt.de

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Fwd: Colloquium by Nathan Lundblad at LUH 22.May 2025; 16- 17:30 pm
by Enno Giese 12 Mai '25

12 Mai '25

FYI, ein CAL Vortrag -------- Weitergeleitete Nachricht -------- Betreff: Colloquium by Nathan Lundblad at LUH 22.May 2025; 16- 17:30 pm Datum: Mon, 12 May 2025 11:49:56 +0200 Von: Anke Schmidt <anke.schmidt(a)DQ-MAT.UNI-HANNOVER.DE> Antwort an: Anke Schmidt <anke.schmidt(a)DQ-MAT.UNI-HANNOVER.DE> An: MEMBERS-DQMAT(a)LISTSERV.UNI-HANNOVER.DE Dear DQ-mat members and interested scientists, We are are pleased to announce the next Colloquium which will take place on *_Thursday, 22.May 2025_*_- *16:00 - 17:30 pm* __LUH__, Building 1101, Room D326, Welfengarten 1, 30167 Hannover _ Colloquiumby *Nathan Lundblad - *Bates College, Maine, United States of America Title: Ultracold Bubbles in Space: Atomic Physics Aboard the International Space Station Abstract: Exploring the effects of geometry, topology, dimensionality, and interactions on ultracold atomic ensembles has been a continually fruitful line of inquiry in the decades since the first observation of Bose-Einstein condensation (BEC). One previously unexplored configuration for ultracold ensembles is that of a bubble or shell, where trapped atoms are confined in the vicinity of a spherical or ellipsoidal surface. Such a quantum system could offer new collective modes, topologically-sensitive behavior of quantized vortices, self-interference and shell collapse, as well as the exploration of trapped ultracold systems with mm-scale spatial extent. While techniques for the generation of bubble-shaped traps have been known since 2001, terrestrial gravity has thus far limited the convenient observation of ultracold bubbles. With the construction of the NASA Cold Atom Lab (CAL) facility and its subsequent delivery in 2018 to the International Space Station (ISS) and commissioning as an orbital BEC user facility, experimental atomic physics schemes that require a sustained microgravity environment are now possible. I will review CAL observations of trapped bubbles of ultracold atoms, including a variety of bubble-trap configurations that are possible with this apparatus. I will also discuss the thermodynamics of ultracold bubbles and review open questions being explored in the ongoing second science run of CAL aboard ISS, which feature improved bubble aspect ratios and filling as well as improved imaging; I will also review upcoming changes to the CAL facility, recent progress made with shell structures in terrestrial laboratories, and the bubble-making potential of the Einstein Elevator. Access data for the transfer: Zoom Access:**https://us04web.zoom.us/j/932734874 This talk is part of the "Virtual Seminar on Precision Physics and Fundamental Symmetries" series and of the SFB DQ-mat colloquium series:https://indico.cern.ch/category/12183/ Best regard, Anke Schmidt -- Leibniz Universität Hannover DQ-Mat-Office, Room 308 Callinstraße 36 30167 Hannover Tel: +49 511 76214887 Fax: +49 511 76217243 Email:anke.schmidt@dq-mat.uni-hannover.de https://www.dq-mat.uni-hannover.de/ https://www.quest-lfs.uni-hannover.de/ https://www.hitec.uni-hannover.de/ https://www.quantumfrontiers.uni-hannover.de/ https://www.qvls.de

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Fwd: Block Lecture by Michaele Fleischhauer at LUH, 22./23. May 2025, 10:15 -11:45 am
by Enno Giese 12 Mai '25

12 Mai '25

FYI -------- Weitergeleitete Nachricht -------- Betreff: Block Lecture by Michaele Fleischhauer at LUH, 22./23. May 2025, 10:15 -11:45 am Datum: Mon, 12 May 2025 11:40:17 +0200 Von: Anke Schmidt <anke.schmidt(a)DQ-MAT.UNI-HANNOVER.DE> Antwort an: Anke Schmidt <anke.schmidt(a)DQ-MAT.UNI-HANNOVER.DE> An: MEMBERS-DQMAT(a)LISTSERV.UNI-HANNOVER.DE Dear DQ-mat members and interested scientists, We are are pleased to announce the next Block Lecture which will take place on *_Thursday, 22.May 2025_*_- 10:15- 11.45 am - Part I __LUH__, Building 1101, Room D326, Welfengarten 1, 30167 Hannover _ **_Friday, 23 May 2025_**_- 10:15 - 11:45 am - Part II _ _LUH, Room 0001, Building 3430, LNQE Building, Schneiderberg 39, 30167 Hannover_ Block Lectureby *Michael Fleischhauer - *University of Kaiserslautern, Germany Title: *Topology in open many-body systems* Abstract: Topological states of matter have fascinated physicists since a long time. The notion of topology is however ususally associated with ground states of (many-body)-Hamiltonians, which are pure. So what is left of it at finite temperatures and can topological protection be extended to non-equilibrium steady states (NESS) of open systems? Can suitable observables be constructed that preserve the integrity of topological invariants for mixed states and what are measurable consequences of their existence? Can we classify the topology of finite-temperature and NESS using generalized symmetries? Access data for the transfer: Zoom Access:**https://us04web.zoom.us/j/932734874 Best regard, Anke Schmidt -- Leibniz Universität Hannover DQ-Mat-Office, Room 308 Callinstraße 36 30167 Hannover Tel: +49 511 76214887 Fax: +49 511 76217243 Email:anke.schmidt@dq-mat.uni-hannover.de https://www.dq-mat.uni-hannover.de/ https://www.quest-lfs.uni-hannover.de/ https://www.hitec.uni-hannover.de/ https://www.quantumfrontiers.uni-hannover.de/ https://www.qvls.de

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Fwd: **EXTERN** Fwd: MAWI Student-led Meeting on Quantum Technology
by Enno Giese 09 Mai '25

09 Mai '25

FYI, ggfs an die AG in Ulm weiterleiten ---------- Forwarded message --------- From: *Donatella Cassettari* <dc43(a)st-andrews.ac.uk> Date: Fri, May 9, 2025 at 3:02 PM Subject: MAWI Student-led Meeting on Quantum Technology To: standrews-conference(a)mawi-net.eu <standrews-conference(a)mawi-net.eu> Dear All, We are happy to announce the *MAWI Student-led Meeting on Quantum Technology: from Theory to Applications*, which will be held in *St Andrews, Scotland, on 14-16 July 2025*. We would be grateful if you could advertise this to people in your group and to anyone who may be interested. The meeting is organized by the PhD students of the MAWI (Matter Wave Interferometers) Doctoral Network. Experts in the field will give talks on their work as well as introductory lectures on a wide range of topics: atom interferometry, atomtronics, quantum sensors, quantum simulation, quantum control, and applications of machine learning to physics. Participants outside the consortium are warmly welcome as it will offer a platform for young researchers to present their work and to engage with peers, with ample space for discussion on perspectives and recent results from the point of view of early-stage researchers. Every participant will have the opportunity to present their research, either through a contributed talk or a poster. The application deadline is *Monday 26th May*. More information about the programme, confirmed speakers and the application form can be found on _https://mawi-net.eu/st-andrews-conference/_ . Best regards, Renzo Testa and Donatella Cassettari ============================== MAWI (Matter-Wave Interferometers) is an European Doctoral Network within the Marie Sklodowska Curie Action (grant number 101073088 - MAWI). The network is focusing on ultra-cold atoms, matter waves, quantum sensing, and Atomtronics, and their application to quantum technologies. The goal of the MAWI project is to train young researchers in the emerging fields of matter-wave interferometry and quantum sensors based on interferometric schemes. The striking progress in the manipulation of matter-waves at ultracold temperatures makes very realistic the possibility that a new generation of interferometers is implemented with ultracold atoms within a few years, with sensitivities and performances such to make them not only promising, but actually usable both in fundamental science and in technological applications. This progress is deeply related to the similarly remarkable advances in the field of Atomtronics, a new field at the frontier of matter-wave optics seeking to realize atomic circuits in which ultracold atoms are manipulated in versatile optical or magnetic guides.

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Fwd: Open PhD and Postdoc position in Quantum Optics and Matter Waves at Tampere University, Finland
by Enno Giese 07 Mai '25

07 Mai '25

FYI, falls jemand einen kennt, der bald fertig wird... -------- Weitergeleitete Nachricht -------- Betreff: Open PhD and Postdoc position in Quantum Optics and Matter Waves at Tampere University, Finland Datum: Wed, 7 May 2025 10:30:04 +0000 Von: Robert Fickler (TAU) <robert.fickler(a)tuni.fi> An: Robert Fickler (TAU) <robert.fickler(a)tuni.fi> Dear Friends and colleagues, We are currently looking for a PhD and postdoc to join our research on structured matter waves. I would very happy if you could spread the word about this opening, more info in attached flyer. And in case you know someone that could be interested in joining us and would like spend time in the happiest country of the world with endless summer days, beautiful northern lights, ice swimming, sauna,…. (and gray autumns :/ ), it would be great if you could forward this message to them. The official submissions can be done through the links: Postdoc https://tuni.rekrytointi.com/paikat/?o=A_RJ&jgid=3&jid=2678 <https://tuni.rekrytointi.com/paikat/?o=A_RJ&jgid=3&jid=2678> PhD https://tuni.rekrytointi.com/paikat/?o=A_RJ&jgid=3&jid=2677 <https://tuni.rekrytointi.com/paikat/?o=A_RJ&jgid=3&jid=2677> Thank you very much in advance All the best from Tampere Robert -------------------------------------------------- Robert Fickler Professor Tampere University robert.fickler(a)tuni.fi <mailto:robert.fickler@tuni.fi> Experimental Quantum Optics Group <https://research.tuni.fi/eqo/>

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Physikalisches Kolloquium 16.05.25_The Bonn Physics Show: a public outreach and a university education project_Prof. PhD Herbert Dreiner
by kraeckmann 05 Mai '25

05 Mai '25

Sehr geehrte Damen und Herren, hiermit möchten wir das Physikalische Kolloquium am Freitag, 16.05.2025 um 14:00 Uhr mit, Prof. PhD Herbert Dreiner, Physikalisches Institut, Universität Bonn, ankündigen. Titel: The Bonn Physics Show: a public outreach and a university education project Wir bitten um Weiterleitung und Aushang und hoffen auf rege Teilnahme. Ort: ZKS-Uhrturmhörsaal, S2|08, Raum 171, Hochschulstraße 4, 64289 Darmstadt ------------ Ladies and gentlemen, We are pleased to announce the lecture of Prof. PhD Herbert Dreiner, Physikalisches Institut, Universität Bonn, at the “Physikalisches Kolloquium” on Friday, 16.05.2025 at 2 pm. Title: The Bonn Physics Show: a public outreach and a university education project Please forward and post this invitation. We look forward to a high attendance. Venue: ZKS-Uhrturmhörsaal, S2|08, Raum 171, Hochschulstraße 4, 64289 Darmstadt ------------ Beste Grüße / Best regards Martine Kräckmann -- Martine Kräckmann [sie/ihr; she/her] Sekretariat Prof. Dr. Barbara Drossel Prof. PhD Marco Durante Prof. Dr. Bernhard Urbaszek Technische Universität Darmstadt Institut für Physik Kondensierter Materie FB 5 Physik - S2|07 16 Hochschulstraße 6 64289 Darmstadt Tel.: 06151 16-21324 Fax: 06151 16-21322 http://www.ipkm.tu-darmstadt.de

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Fwd: DQ-mat Block Lecture by Susanne Yelin at LUH, 08./ 09.May 2025, 10 -12 pm
by Enno Giese 05 Mai '25

05 Mai '25

FYI -------- Weitergeleitete Nachricht -------- Betreff: DQ-mat Block Lecture by Susanne Yelin at LUH, 08./ 09.May 2025, 10 -12 pm Datum: Mon, 5 May 2025 08:36:28 +0200 Von: Anke Schmidt <anke.schmidt(a)DQ-MAT.UNI-HANNOVER.DE> Antwort an: Anke Schmidt <anke.schmidt(a)DQ-MAT.UNI-HANNOVER.DE> An: MEMBERS-DQMAT(a)LISTSERV.UNI-HANNOVER.DE Dear DQ-mat members and interested scientists, We are are pleased to announce the next Block Lecture which will take place on *_Tuesday, 08. May and Friday, 09.May 2025_*_ __LUH__, Building 3406, Room 317, Callinstr. 36, 30167 Hannover _ *_10:00-12:00_*Colloquium by *Susanne Yelin, Physics Department, Harvard University, Cambridge, United States of America* Title: Atomic Cooperative Arrays: Bio‑Inspired Quantum Optics and Quantum Chemistry on Neutral‑Atom Array Quantum Computers Abstract: What is the potential of dense—cooperative—emitter arrays? These arrays, already known for their use in metrology and quantum information as efficient waveguides and mirrors, are now being studied in alternative geometries. Inspired by nature, we investigate chiral and helical structures, as well as ring‑shaped arrays. In addition, we introduce a digital‑analog simulation framework for strongly correlated spin models using reconfigurable qubit arrays. Our toolbox—built on Floquet engineering and hardware‑optimized multi‑qubit gates—enables programmable real‑time Hamiltonian evolution, with an implementation proposal on Rydberg atom platforms. By combining snapshot measurements and single‑ancilla control, we extract excitation spectra and finite‑temperature susceptibilities from a single dataset. We illustrate this approach by computing key catalytic energy levels in a polynuclear transition‑metal complex and magnetic response in a two‑dimensional spin lattice. Access data for the transfer: Zoom Access:**_https://us04web.zoom.us/j/932734874 <https://us04web.zoom.us/j/932734874> _ Best regards, Anke Schmidt __ -- Leibniz Universität Hannover DQ-Mat-Office, Room 308 Callinstraße 36 30167 Hannover Tel: +49 511 76214887 Fax: +49 511 76217243 Email:anke.schmidt@dq-mat.uni-hannover.de https://www.dq-mat.uni-hannover.de/ https://www.quest-lfs.uni-hannover.de/ https://www.hitec.uni-hannover.de/ https://www.quantumfrontiers.uni-hannover.de/ https://www.qvls.de

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