Date

2024年10月31日 (木) 14:00

Speaker: Krishna Jalan

Title: Generalized second law for non-minimally coupled matter theories

Abstract: In this talk, I will give a brief overview of the  generalized second law (GSL) of black hole thermodynamics. In  particular, we will see how the GSL works out for non-minimally  coupled matter theories within the context of higher curvature gravity  theories. Previous proofs in the literature have extensively addressed  the GSL in various gravity theories, but they have uniformly assumed  that matter sectors couple minimally to gravity. In this presentation,  we will explore a straightforward generalization of the GSL to  scenarios involving non-minimally coupled matter, specifically scalar  fields, within an effective field theory framework.

Date

2024年10月30日 (水) 16:00

Speaker: Jan  Głowacki

Title: Relativistic operational quantum reference frames

Abstract: I will be sharing some recent insights related to applying the operational approach to quantum reference frames (QRFs) in relativistic contexts. I will begin by briefly reviewing the principles of operational QRFs to then apply them in the context of the Poincare group and discuss the emerging notion of relational local observables. This perspective can be further generalized to gauge theories by replacing the Poincare group by an arbitrary principal bundle. In this context, the concepts of external frame transformations, gauge-invariance and diff-invariance can be understood in a relational and operational manner. If time allows, I will also mention work in progress on how indefinite geometries can be incorporated in this picture, how far we in establishing this approach as a relational and mathematically sound foundation for QFT, and its connections to quantum measurement theory in this context. I would also be happy to exchange some ideas about how the `thermal modular type-reduction’ phenomena could be seen from this perspective.

Date

2024年10月29日 (火) 9:30 10:30

Rongwei Yang, University at Albany, SUNY

 

Title: Linear algebra in several variables

Date

2024年11月14日 (木) 17:00

Professor. Heiko Schütt : Reward prediction error neurons implement an efficient code for reward

Date

2024年11月12日 (火) 15:00 16:00

Daisuke Sagaki, University of Tsukuba

Title: Toward a Pieri rule for double quantum Grothendieck polynomials

Date

2024年11月7日 (木) 10:30 11:30

Dr. Tomonari Nozaki, Assistant Professor, National Institute for Basic Biology (NIBB)

Date

2024年10月29日 (火) 14:00 15:00

[Seminar]  Thermometry based on a superconducting qubit and its applications

Speaker: Dmitrii Lvov, Aalto University,

Language: English

Date

2024年11月5日 (火) 11:00 11:30

From mathematical biology to engineering biology: bridging academic research and science advice for government

 

Date

2024年11月12日 (火) 13:00 14:00

Speaker: Prof. Yoldas Havva

Date

2024年10月30日 (水) 10:30 11:30

István Kovács is Assistant Professor in the Department of Physics and Astronomy at Northwestern University is visiting OIST and present some results of his recent research work. Language: English.

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