Target audience: Interns, Students, PostDocs, and those who are interested in the same research field. Language: English

OIST - Osaka University: A Recipe for Scientific Synergy-Series 2 by Dr. Noriyuki Tsumaki and Dr. Ichiro Masai

Quantum Gravity group meeting. Speakers: Jonas Sonnenschein and Mirian Tsulaia. Title: "N=2 SUSY Quantum Mechanics and spectra of Non-SUSY Hamiltonians (part 2)"

OIST-Tohoku U. 2 ^nd Joint Workshop on Marine Science “ Oceans – and the impact of humans and climate change ”

Abstract:

This talk will present the result of a joint work with Mathav Murugan(University of British Columbia) that, for a symmetric diffusion on a complete locally compact separable metric space, two-sided sub-Gaussian heat kernel bounds imply the singularity of the energy measures with respect to the reference measure.

For self-similar (scale-invariant) diffusions on self-similar fractals, the singularity of the energy measures is known to hold in many cases by Kusuoka (1989, 1993), Ben-Bassat, Strichartz and Teplyaev (1999), Hino (2005), and Hino and Nakahara (2006), but these results heavily relied on the self-similarity of the space.

It was conjectured, and had remained open for the last two decades to prove, that the singularity of the energy measures should follow, without assuming the self-similarity, just from two-sided sub-Gaussian heat kernel bounds of the same form as those for diffusions on typical self-similar fractals. The main result of this talk answers this conjecture affirmatively.

The first half of the talk will be devoted to a brief introduction to self-similar diffusions (and their associated Dirichlet forms) on self-similar fractals and to sub-Gaussian heat kernel bounds for symmetric diffusions, so that the talk will (hopefully) be accessible even to those without prior knowledge about diffusions on fractals.

Please click here to register

[Neuroscience Club] Prof. Hidehiko Inagaki, Research Group Leader, Neural Dynamics & Cognitive Functions Group

We are excited to have an online seminar by Prof. Inagaki from Max Plank Florida Institute for Neuroscience.

You can join the seminar via ZOOM (meeting ID: 782 721 4941, Password: 436475).

OIST-UT Joint talk series for future science-Season6: High Fidelity Genome Sequencing: What have we been missing ?

Kay Jin Lim, Nanyang Technological University Title: Descent Algebra of Type A

Target audience: Interns, Students, PostDocs, and those who are interested in the same research field. Language: English

Quantum Gravity group meeting. Speakes: Julian Lang (Neiman Unit) Title: "Self-Dual Gravity"

Title: What makes human special? A molecular approach

Please welcome Prof. Pääbo, our Adjunct Professor, and join his very first faculty talk at OIST!

Yasha, Akiko, and the CPR team

Dr. Daniel Shiu, Chief Cryptographer of Arqit, a leading company with transformational quantum encryption technology, will speak on "Public-cryptography is bad for security".

Registration link: TUESDAY, 19 APRIL 2022, 5:00PM (JST) | OIST Groups

Dr. Chris Bowman, Reader, University of York. Language: English (no interpretation). Target audience: students and researchers from related fields. Freely accessible to all OIST members and guests without registration.

Target audience: Interns, Students, PostDocs, and those who are interested in the same research field.

Language: English

The seminar aims to initiate interactions between international and Japanese researchers and students in the field of Ecology and Evolution. The 8th event is presented by Ryosuke Nakadai from National Institute for Environmental Studies.

Please register from the next link: https://sites.google.com/view/jee-english-seminar

Title: Individual-based temporal beta-diversity: Individual turnover and compositional shift in a community

Timeline 15:00~15:30: seminar 15:30~16:00: questions and discussion 16:00~: mixer

Abstract: As increasing the necessity to assess the influences of global climate change and anthropogenic disturbances on biodiversity, the concept of beta-diversity has been extended to a temporal context and has been intensively studied in recent years. In studies of temporal beta-diversity, methodologies used in spatial beta-diversity have often been used simply. However, temporal beta-diversity often includes "the same individual" between two communities implicitly, which has not been the case with spatial communities, so it is necessary to consider the effects of individual turnover and persistence for quantifying temporal beta-diversity. I focused on both individual identity and the persistence of individuals within a temporal beta-diversity framework and developed some novel indices. In my presentation, I will explain the novel indices which I recently developed and the concepts behind them, showing examples of analysis. I would also like to discuss the prospects for community assemblages through both time and individual identity.

The OIST Innovators Society is hosting a casual fireside chat with Koshu Kunii, Ryosuke Kimura and Kentaroh (Kenny) Awata, from Lifetime Ventures. Lifetime Ventures is a pre-seed venture capital firm based in Tokyo, that invests in talent to create businesses that will be loved and exist for a long time. Lifetime typically invests ~$50-500k in startups at the pre-seed or seed stage and provides hands-on support to its portfolio startups. This is an exciting opportunity to ask venture capitalists anything!

Quantum Gravity group meeting. Speakers: Jonas Sonnenschein and Mirian Tsulaia. Title: "N=2 SUSY Quantum Mechanics and spectra of Non-SUSY Hamiltonians (part 1)"

Every Company has a "Day 1"

Join guests from the University of Tokyo Edge Capital to learn about their Founders Program that offers comprehensive support to teams in various stages of launching their deep-tech startups. In addition to investment funds, the program also offers grants to researchers in basic science. 12 April 2022 | 9:30-10:15 | Lab 4 Room E48

OIST Workshop | Main organizer: Thomas Busch (Quantum Systems Unit) | OIST members are welcome to attend all scientific sessions (registration required). | Website | Venue: Seminar Room B250, OIST Main Campus and Online

This conference will be a hybrid conference with both online and on-site attendees. We will accept on-site participants from within Japan only.

We ask for you understanding that the dates are subject to change due to the ongoing COVID-19 situation.

Careers in Venture Capital for PhDs

Join the Managing Partner and Investment Associates from the University of Tokyo Edge Capital to explore the topic of careers in venture capital for PhDs. Snacks will be provided. No registration required. 11 April 2022 | 17:00-18:00 | Room C210

In describing properties of disordered media, physicists have long been interested in the behaviour of random walks on random graphs that arise in statistical mechanics, such as percolation clusters and various models of random trees. Random walks on random graphs are also of interest to computer scientists in studies of complex networks. In ‘critical’ regimes, many of the canonical models exhibit large-scale fractal properties, which means it is often a challenge to describe their geometry, let alone the associated random walks. In this talk, I will describe an approach suitable for understanding various ‘low-dimensional’ models of random walks on random graphs that builds on the deep connections that exist between electrical networks and stochastic processes.

Part II Discussion Theme:

Working in different places, and especially in different countries, naturally leads one to draw comparisons. Through such, one learns more about the working cultures of each. After some brief general musings on this topic, I plan to share some of my experiences from the UK of working on a departmental committee that was responsible for staff welfare (including work-life balance and gender equality).

The colloquium will be held once a month online. Each event consists of a one-hour talk on mathematics followed by a one-hour diversity panel discussion session. Please register before April 7, 5 pm. Click here to register!

The next ORC Assembly will be the last for the previous ORC representatives and the first for the new representatives! Please join us as we hand over to the new office.

Also on the agenda: Future plans of the new office, with plenty of time for discussion, and a report on the recent Faculty Assembly.

These seminars examine the science of how to bring macroscopic (large) systems into the quantum regime. The preparation of large Schrodinger cats is one of the long sought goals of quantum science. Researchers seek to do this for many reasons – to see if it can be done at all – does quantum mechanics still hold for large objects – is there new science that appears when objects become large/massive? Can macroscopic/large quantum systems be useful as precision sensors – and how can we preserve/protect the large scale quantum properties in such systems. These series of talks (experimental and theoretical), will show some facets/aspects of how some researchers are aiming towards the building of large Quantum Cats. Coffee and Okinawan Donuts are supplied during the morning.

[Neuroscience Club] Prof. Justus Kebschull, Assistant Professor, Johns Hopkins University. Language: English.

We are excited to have an online seminar by Prof. Justus Kebschull from Johns Hopkins University. He is a world-leading researcher studying brain circuit evolution by using cutting-edge circuit tracing and viral tools. Everyone is welcome to join the seminar!

You can join the seminar via ZOOM

Dean Yates, Queen Mary University of London Title: Spin representations of the symmetric group

Title: A masing spin ensemble: temperature, light, amplifier, and diamond

Abstract:

I will start discussing two fundamental concepts in nature, temperature and light, followed by one of the indispensable basic components in the modern information society, amplifiers. Then I will try to show that combining these three concepts leads to our ongoing project, a heat-driven coherent microwave oscillator based on a spin ensemble in a diamond crystal.

Join us for an informal lunchtime "fireside chat" with Shozo Kamiya , Founder of I'm Beside You , a startup developing multimodal AI systems to improve online communications and make them more personalized to the individual. 28 March 2022 | 12:00-13:00 | C210

The Innovators Society is gathering with the 3 ^rd installment of the startup workshop series, with speaker Mr. Eli Lyons, Co-founder/CEO of GenomeMiner, and Entrepreneur-in-Residence at OIST .

Target audience: Interns, Students, PostDocs, and those who are interested in the same research field.

Language: English

John Murray, Maynooth University Title: A Schur-positivity conjecture inspired by the Alperin-Mckay conjecture

Language: English

Speaker: Vyacheslav Lysov (Quantum Gravity). Title: Tropical Mirror Symmetry

Target audience: Interns, Students, PostDocs, and those who are interested in the same research field.

Language: English

A 2-day seminar held by Algorithms for Ecological and Evolutionary Genomics (Gene Myers) Unit along with Genomics and Regulatory Systems (Nicholas Luscombe) Unit as the co-host.

In the seminar, entitled " OIST-UT Genomics Research Seminar ", we invite 3 Ph.D. students from The University of Tokyo (Shinichi Morishita lab) to OIST, and each of the 8 researchers in total from UT and OIST will give a 20 min talk on their work plus 10 min Q&A session.

The seminar will be held on site at OIST, although you can also join via zoom (link below). On each day, right after the seminar we will have time and place for further discussion and interaction with the presenters (while keeping distance).

Speaker: Vyacheslav Lysov (Quantum Gravity). Title: "Introduction to tropical Gromov-Witten theory" (part 3)

Susumu Ariki, Osaka University

Title: Three lectures on modular Lie algebras (Part III)

A 2-day seminar held by Algorithms for Ecological and Evolutionary Genomics (Gene Myers) Unit along with Genomics and Regulatory Systems (Nicholas Luscombe) Unit as the co-host. In the seminar, entitled " OIST-UT Genomics Research Seminar ", w e invite 3 Ph.D. students from The University of Tokyo (Shinichi Morishita lab) to OIST, and each of the 8 researchers in total from UT and OIST will give a 20 min talk on their work plus 10 min Q&A session. The seminar will be held on site at OIST, although you can also join via zoom (link below). On each day, right after the seminar we will have time and place for further discussion and interaction with the presenters (while keeping distance).

Susumu Ariki, Osaka University

Title: Three lectures on modular Lie algebras (Part II)

Theoretical Physics Seminar. Speaker: Yasha Neiman (Quantum Gravity). Title: "A new kind of Feynman rules: what is Higher Spin Gravity? (part 2)"

About one year has passed since the start of R&D for Moonshot Goal 6, "a fault-tolerant universal quantum computer that will revolutionize economy, industry, and security by 2050”. They will disseminate the results of R&D currently being carried out in the goal's seven projects, and explore issues related to the realization of fault-tolerant universal quantum computers. Prof. Hiroki Takahashi will give a presentation.

Susumu Ariki, Osaka University

Title: Three lectures on modular Lie algebras (Part I)

Speaker: Professor Jun Kitagawa, Michigan State University Title: A brief introduction to branched optimal transport Abstract:

The optimal transport (also known as Monge-Kantorovich) problem is a classical optimization problem which has recently become the focus of much research with connections to various fields such as PDEs, geometry, and applications. In particular, it provides an effective way to metrize the space of probability measures on a given metric space. However, there is an alternate approach to metrizing such spaces using so called branched optimal transport. Branched optimal transport is based on the classical Gilbert-Steiner problem, later adapted by Qinglan Xia, and in contrast to the Monge-Kantorovich approach tends to yield branching structures. In this series of lectures I will introduce the basics of branched optimal transport and discuss some of the known results in the literature.

OIST x ASJ "Future of Energy and Climate" Seminar Series

Speaker: Vyacheslav Lysov (Quantum Gravity). Title: "Introduction to tropical Gromov-Witten theory" (part 2)

This talk discusses a generalized class of supersolutions, so-called \(p\)-supercaloric functions, to the parabolic \(p\)-Laplace equation. This class of functions is defined as lower semicontinuous functions that are finite in a dense set and satisfy the parabolic comparison principle. Their properties are relatively well understood in the slow diffusion case \(p>2\), but little is known in the fast diffusion case \(1

Speaker: Professor Asuka Takatsu, Tokyo Metropolitan University Title: Curvature and Optimal transport Abstract

In this series of lectures, I first review the notion of curvature (Gaussian curvature and Ricci curvature). In particular, I recall some comparison theorems (Toponogov's triangle comparison theorem, Bishop--Gromov volume comparison theorem etc). Then I introduce a generalized notion of curvature in non-smooth spaces.

Target audience: Interns, Students, PostDocs, and those who are interested in the same research field.

Language: English

Language: English

At our next Innovators Society meeting, we will be joined by Graham Garner, our resident Technology Licensing Specialist at OIST - to talk about Non-Disclosure Agreements (NDAs) and other research agreements you may need to use throughout your career.

Casual discussion group based on pre-recorded theoretical ecology talks; all welcome! This week: Sebastian Schreiber (UC Davis). General theorems for coexistence and extinction in stochastic models .