Berkeley Week at Kavli IPMU

Asia/Tokyo
Seminar room B(1F), Kavli IPMU

Seminar room B(1F), Kavli IPMU

Description

Berkeley Week at the Kavli IPMU brings students and postdocs from Berkeley to interact with students and postdocs from University of Tokyo, an opportunity to  expand the scientific and cultural horizon for both sides.  The event has focused on particle phenomenology.  This time we expanded the program to include talks on field theory, astrophysics, and cosmology including several speakers at the faculty level.  It is a part of the new graduate program Forefront Physics and Mathematics to Drive Transformation (FoPM).

 

Dates: January 14-17, 2020
Venue: Seminar room B, Kavli IPMU

Speakers:

Chiaki Kobayashi
Daiki Ueda
David Dunsky
Domenico Orlando
Eisuke Sonomoto
Eleanor Hall
Hajime Fukuda
Hiromasa Nakatsuka
Ippei Obata
Ipsita Saha
Jacob Leedom
Kaisei Watanabe
Keisuke Yanagi
Kenta Ando
Kohei Hayashi
Koichi Hamaguchi
Liz Wildenhain
Masahiro Ibe
Melina Bersten
Neil Barrie
Ofri Telem
Robert McGehee
Shih-Yen Tseng
Shin Kobayashi
Shunichi Horigome
Simeon Hellerman
So Chigusa
Sunao Sugiyama
Susanne Reffert
Taichi Ago
Taisuke Katayose
Takaaki Kajita
Tobias Binder
Yevgeny Stadnik
Zhengkang (Kevin) Zhang

 

Organizers:

Hitoshi Murayama (Kavli IPMU, UC Berkeley, Lawrence Berkeley National Laboratory)
 

Sponsers:

Kavli IPMU
UC Berkeley
Center for Japanese Studies
Forefront Physics and Mathematics to Drive Transformation (FoPM)

 

Contact : seminar@ipmu.jp
Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU), the University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa City, Chiba 277-8583, Japan


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Participants
  • Andy Bunker
  • Aoi Eguchi
  • Cao Weiguang
  • Chiaki Kobayashi
  • Daiki Ueda
  • David Dunsky
  • Domenico Orlando
  • Eisuke Sonomoto
  • Eleanor Hall
  • Hajime Fukuda
  • Hiromasa Nakatsuka
  • Hitoshi Murayama
  • Hor Shihwen
  • Ippei Obata
  • Ipsita Saha
  • Jacob Leedom
  • Kaisei Watanabe
  • Kanako Narita
  • Kazuyuki Akitsu
  • Keisuke Yanagi
  • Ken'ichi Nomoto
  • Kenta Ando
  • Kohei Hayashi
  • Koichi Hamaguchi
  • Liz Wildenhain
  • Masahiro Ibe
  • Masahito Yamazaki
  • Melina Bersten
  • Meridith Joyce
  • Nao Suzuki
  • Neil Barrie
  • Ofri Telem
  • Robert McGehee
  • Satoshi Shirai
  • Shih-Yen Tseng
  • Shin Kobayashi
  • Shunichi Horigome
  • Shunsaku Nagasawa
  • Simeon Hellerman
  • So Chigusa
  • Sunao Sugiyama
  • Susanne Reffert
  • Taichi Ago
  • Taisuke Katayose
  • Takaaki Kajita
  • Tobias Binder
  • Wakutaka Nakano
  • Yevgeny Stadnik
  • Yoshiki Kanazawa
  • Yoshitaka Okuyama
  • Yume Nishinomiya
  • Zhengkang (Kevin) Zhang
Contact
    • 09:00 09:30
      Breakfast 30m
    • 09:30 10:00
      Testing seesaw and leptogenesis by gravitational wave 30m
      Speaker: Prof. Hitoshi Murayama (Berkeley, Kavli IPMU)
    • 10:00 10:30
      Oscillon of Ultra-Light Axion-like Particle 30m
      Speaker: Mr Eisuke Sonomoto (ICRR)
    • 10:30 11:00
      Matter Through the Looking Glass 30m
      Speaker: Ms Eleanor Hall (UC Berkeley)
    • 11:00 11:30
      Break 30m
    • 11:30 12:00
      Introduction to the large charge expansion 30m
      Speaker: Dr Domenico Orlando (INFN division of Turin)
    • 12:00 12:30
      J-factor estimation of Draco, Sculptor and Ursa Minor dwarf spheroidal galaxies with the member/foreground mixture model 30m
      Speaker: Mr Shunichi Horigome (Kavli IPMU)
    • 13:30 14:00
      How to apply to a postdoc position 30m
      Speaker: Mr Robert McGehee (Berkeley)
    • 14:00 14:30
      New Type of String Solutions with Long Range Forces 30m
      Speaker: Prof. Masahiro Ibe (ICRR)
    • 14:30 15:00
      Big Bounce Baryogenesis 30m
      Speaker: Dr Neil Barrie (Kavli IPMU)
    • 15:00 15:30
      tea time 30m
    • 15:30 16:30
      Alireza Allahyarisadeghabadi (IPM, Tehran, Iran) 1h Balcony A (4F), Kavli IPMU ()

      Balcony A (4F), Kavli IPMU

      https://research.ipmu.jp/seminar/?seminar_id=2423

    • 16:30 17:00
      Flowing to the Bounce 30m
      Speaker: Mr So Chigusa (Hongo)
    • 09:00 09:30
      Breakfast 30m
    • 09:30 10:00
      On the New Uncertainty Relation Derived Geometrically from Aharonov's Weak Value 30m
      Speaker: Mr Kaisei Watanabe (KEK)
    • 10:00 10:30
      Gauge Anomalies in an Effective Field Theory, the On-Shell Way 30m

      In a seminal paper, John Preskill showed how gauge theories in the Higgs phase can couple consistently to anomalous matter content. This formulation is complementary to the traditional approach in which gauge theories with an anomalous fermion content necessitate gauged-WZW terms that cancel the fermion anomaly. The gauge invariant statement that follows is that anomalous theories in the Higgs phase are completely consistent with unitarity, when considered as EFTs.

      In this work we shed more light on the consistency of anomalous gauge theories in the Higgs phase, using the recently discovered, on-shell notion of gauge anomalies as tension between locality and unitarity at 1-loop. We demonstrate how this tension is reconciled in the Higgs phase by calculating the 1-loop contribution of massless chiral fermions to the massive 4-vector amplitude. This is the one of the first full 1-loop calculations that combine the method of generalized unitarity with Nima Arkani-Hamed’s massive amplitude formalism.

      Speaker: Dr Ofri Telem (Berkeley)
    • 10:30 11:00
      Model of Composite Asymmetric Dark Matter 30m
      Speaker: Mr Shin Kobayashi (ICRR)
    • 11:00 11:30
      Group Photo and Break 30m
    • 11:30 12:00
      Rapid bound-state formation of Dark Matter in the Early Universe 30m
      Speaker: Dr Tobias Binder (Kavli IPMU)
    • 12:00 12:30
      On the infinite gradient-flow for the domain-wall formulation of chiral lattice gauge theories 30m
      Speaker: Mr Taichi Ago (Hongo)
    • 13:30 14:00
      Life in Japan 30m
      Speakers: Prof. Domenico Orlando (INFN division of Turin), Prof. Susanne Reffert (University of Bern)
    • 14:00 14:30
      QCD Axion Dark Matter from a Late Time Phase Transition 30m
      Speaker: Mr Jacob Leedom (Berkeley)
    • 14:30 15:00
      Asymptotic safety and walking dynamics at large charge 30m
      Speaker: Prof. Susanne Reffert (University of Bern)
    • 15:00 15:30
      tea time 30m
    • 15:30 16:00
      Amplification of gravitational motion via quantum weak measurement 30m
      Speaker: Mr Daiki Ueda (KEK)
    • 16:00 16:30
      Aspects of Nonlinear Effect on Black Hole Superradiance 30m

      Under some conditions, light boson fields grow exponentially around a rotating black hole, called the superradiance instability. We discuss effects of nonlinear interactions of the boson on the instability. In particular, we focus on the effect of the particle production and show that the growth of the boson cloud may be saturated much before the black hole spin is extracted by the boson cloud, while the nonlinear interactions also induce the boson emission. For application, we revisit the superradiant instability of the standard model photon, axion and hidden photon.

      Speaker: Dr Hajime Fukuda (Berkeley)
    • 16:30 17:00
      Higgs Parity, Strong CP, Dark Matter, and Leptogenesis 30m
      Speaker: Mr David Dunsky (Berkeley)
    • 09:00 09:30
      Breakfast 30m
    • 09:30 10:00
      Dark Matter Heating vs. Rotochemical Heating in Old Neutron Stars 30m
      Speaker: Prof. Koichi Hamaguchi (Hongo)
    • 10:00 10:30
      Temporal Bell inequality violations in cosmological perturbations 30m
      Speaker: Mr Kenta Ando (ICRR)
    • 10:30 11:00
      Q-ball DM and its decay through A-term 30m
      Speaker: Mr Hiromasa Nakatsuka (ICRR)
    • 11:00 11:30
      Break and another group photo with Kajita (11:15) 30m
    • 11:30 12:00
      Neutrino studies in Kamioka 30m

      How research may not go as planned, and how collaboration between experiments and theories are important.

      Speaker: Prof. Takaaki Kajita (ICRR)
    • 12:00 12:30
      New ideas in light dark matter direct detection. 30m
      Speaker: Dr Zhengkang (Kevin) Zhang (Berkeley)
    • 13:30 14:00
      Life in Japan 30m
      Speaker: Mr Shih-Yen Tseng (Hongo)
    • 14:00 15:00
      Shing-Chi Leung (Caltech) 1h Balcony A (4F), Kavli IPMU ()

      Balcony A (4F), Kavli IPMU

      https://research.ipmu.jp/seminar/?seminar_id=2478

    • 15:00 15:30
      tea time 30m
    • 15:30 16:00
      Models of Core-Collapse Supernovae and Shock Breakout 30m
      Speaker: Dr Melina Bersten (National Scientific and Technical Research Council-Argentia)
    • 16:00 16:30
      The origin of elements in the Universe 30m
      Speaker: Prof. Chiaki Kobayashi (University of Hertfordshire)
    • 16:30 17:00
      Non relativistic effect on indirect probe of EWIMP at LHC 30m
      Speaker: Mr Taisuke Katayose (Kavli IPMU)
    • 17:30 20:00
      banquet 2h 30m
    • 09:00 09:30
      Breakfast 30m
    • 09:30 10:00
      Limit on the axion decay constant from the cooling neutron star in Cassiopeia A 30m
      Speaker: Mr Keisuke Yanagi (Hongo)
    • 10:00 10:30
      Distinguishing neutrino mass hierarchy from DM annihilation 30m
      Speaker: Dr Ipsita Saha (Kavli IPMU)
    • 10:30 11:00
      Axion Dark Matter Search with Interferometric Detectors 30m
      Speaker: Dr Ippei Obata (ICRR)
    • 11:00 11:30
      Break 30m
    • 11:30 12:00
      Direct Detection Signals from Absorption of Fermionic Dark Matter 30m
      Speaker: Mr Robert McGehee (Berkeley)
    • 12:00 12:30
      Galactic Archaeology: Unveiling the nature of dark matter 30m
      Speaker: Dr Kohei Hayashi (ICRR)
    • 13:30 14:00
      How to succeed outside Japan 30m
      Speaker: Prof. Hitoshi Murayama (Berkeley, Kavli IPMU)
    • 14:00 14:30
      Islands, Double Holography, and Other Recent Advances in the Black Hole Information Paradox 30m
      Speaker: Ms Liz Wildenhain (Berkeley)
    • 14:30 15:00
      Novel approaches to dark matter detection with atomic, molecular and optical experiments 30m
      Speaker: Dr Yevgeny Stadnik (Kavli IPMU)
    • 15:00 15:30
      tea time 30m
    • 15:30 16:00
      Minimal gauged $U(1)_{L_{\alpha}-L_{\beta}}$ models driven into a corner 30m
      Speaker: Mr Shih-Yen Tseng (Hongo)
    • 16:00 16:30
      Integrability at Large Quantum Number 30m
      Speaker: Prof. Simeon Hellerman (Kavli IPMU)
    • 16:30 17:00
      Constraints on Primordial Black Holes with Microlensing: Wave & Finite Source Effects / PBH from Multiverse 30m
      Speaker: Mr Sunao Sugiyama (Kavli IPMU)
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