Accelerating Universe in the Dark

4 Mar 2019, 12:00 → 8 Mar 2019, 18:00 Asia/Tokyo

Yukawa Institute for Theoretical Physics (Kyoto University)

Registration Deadline: TBA

Date:

4th - 8th March 2019

Venue:  

Yukawa Institute for Theoretical Physics, Kyoto University (how to get there) 

Scientific Rationale:

Dark matter is responsible for the formation of cosmic structures such as galaxies in the Universe, while dark energy is responsible for the accelerated expansion in the Universe. Dark matter and dark energy make up about 95% of our Universe. What are dark matter and dark energy? Or is the cosmic acceleration due to breakdown of the Einstein’s gravity theory on cosmological scales? The nature of these dark components is the most profound mystery in physics and cosmology.

Large-scale structure (LSS) is a powerful cosmological tool to study the distribution of dark matter as well as explore the nature of dark energy. There are various promising LSS methods: weak gravitational lensing, galaxy clustering, redshift-space distortion effects, clusters of galaxies and eventually 21cm cosmology. To have high-precision measurements of these LSS probes, there are a number of ongoing and planned projects aimed at unveiling the nature of the dark components. However, in order to attain the full potential of these projects, scientists need to resolve a number of statistical, computational and theoretical challenges in LSS. The aim of this conference is to gather experts in LSS, both in theory and from various collaborations, to understand the current status of LSS methods and data as well as discuss the roles of future surveys.

Main Topics:

• Dark Matter and Dark Energy
• Inflation 
• Modification of gravity
• Large-scale structure probes (cosmic microwave background, weak lensing, baryon acoustic oscillations, redshift-space distortion, 21cm)
• Ongoing and future wide-area galaxy surveys: Subaru Hyper Suprime-Cam, Subaru Prime Focus Spectrograph, Dark Energy Survey (DES), Kilo-Square Degree survey (KiDS), DESI, LSST, Euclid, WFIRST
• Gravitational wave cosmology 

We encourage especially young researchers and students to attend the conference.

---

Confirmed Invited Speakers :

• Bernard Carr (Queen Mary U of London)

• Cora Dvorkin (Harvard)

• Tim Eifler (Arizona)

• Xian Gao (Sun Yat-sen U.)

• Masashi Hazumi (KEK/IPMU)

• Hendrik Hildebrandt (Ruhr-University Bochum)

• Chiaki Hikage (Kavli IPMU)

• Kazuya Koyama (Portsmouth)

• Elisabeth Krause (Arizona)

• Hirosi Ooguri (Caltech/Kavli IPMU)

• Yasunori Nomura (Berkeley/Kavli IPMU)

• Valeria Pettorino (CEA Saclay)

• Leonardo Senatore (Stanford)

• Alexei Starobinsky (Landau Inst.)

• Nicolas Yunes (Montana)

• Saleem Zaroubi (Groningen)

Host: 

 

Sponsored by 

  

This workshop is supported in part by MEXT Grant-in-Aid for Scientific Research on Innovative Areas (15H05887, 15H05888, 15H05889, 15H05890, 15H05891, 15H05892, 15H05893, 15H05894, 15H05895, 15H05896, 15K21733). 

Monday 4 March

13:00 → 13:05 opening remark

13:05 → 14:40 Afternoon session 1

13:05 (Invited) Constraints on Quantum Gravity

Speaker: Prof. Hirosi Ooguri (Kavli IPMU/Caltech)

13:40 Swampland viewed from bottom up

Speaker: Hitoshi Murayama (Kavli IPMU/Berkeley)

20190304_HitoshiMurayama.pdf

14:00 Blue-tilted primordial gravitational waves from massive gravity

Speaker: Shuntaro Mizuno (YITP)

20190304_ShuntaroMizuno.pdf

14:20 Galaxy surveys using Large Submillimeter Telescope

Speaker: Kohno Kotaro (U. Tokyo)

20190304_KotaroKohno.pdf

14:40 → 15:10 Coffee break

15:10 → 16:25 Afternoon session 2 (contd)

15:10 (invited) Cosmological Observations and the Multiverse

Speaker: Yasunori Nomura (Berkeley/Kavli IPMU)

20190304_YasunoriNomura.pdf

15:45 Particle production and Gravitational waves with Primordial SU(2) gauge fields

Speaker: Azadeh Maleknejad (MPA)

20190304_AzadehMaleknejad.pdf

16:05 A model of dark energy spatially varying on very large scales

Speaker: Kazuhiro Yamamoto (Hiroshima U.)

20190304_KazuhiroYamamoto.pdf

16:25 → 16:45 Coffee break

16:45 → 17:45 Poster machine-gun talks (2min each) (Chair: Tomomi Sunayama)

posters.pdf

Tuesday 5 March

09:00 → 10:15 Morning session 1

09:00 (invited) Probing Modified Gravity with Gravitational Waves

Speaker: Nicolas Yunes (Montana State University)

20190305_NicolasYunes.pdf

09:35 Probing ultralight scalar field dark matter with gravitational-wave interferometers

Speaker: Teruaki Suyama (Tokyo Institute of Technology)

20190305_TeruakiSuyama.pdf

09:55 Rotating quantum black holes and ringdown gravitational waves

Speaker: Oshita Naritaka (U. Tokyo)

20190305_NaritakaOshita.pdf

10:15 → 10:40 Coffee break

10:40 → 11:55 Morning session 2

10:40 (invited) Deciphering the Dark Side of Structure Formation with Cosmological Data

Speaker: Cora Dvorkin (Harvard)

20190305_CoraDvorkin.pdf

11:15 Gravitational wave forest from string axiverse

Speaker: Yuko Urakawa (Bielefeld U.)

20190305_YukoUrakawa.pdf

11:35 Towards Lyman-alpha intensity mapping in HETDEX

Speaker: Saito Shun (Missouri University of Science and Technology)

20190305_ShunSaito.pdf

11:55 → 12:00 Group photo

12:00 → 13:30 Lunch break

13:30 → 14:45 Afternoon session 1

13:30 (invited) Inflation and pre-inflation: recent developments

Speaker: Alexei Starobinsky (Landau Institute)

20190305_AlexeiStarobinsky.pdf

14:05 Non-dynamical torsion from fermions, inflation and CMBR phenomenology

Speaker: Antonino Marciano (Fudan U.)

20190305_AntoninoMarcianò.pdf

14:25 Gravitational particle creation for dark matter and reheating

Speaker: Soichiro Hashiba (U. Tokyo)

20190305_SoichiroHaba.pdf

14:45 → 15:30 coffee break & poster session

15:30 → 16:45 Afternoon session 2

15:30 (invited) LiteBIRD

Speaker: Masashi Hazumi (KEK)

20190305_MasashiHazumi.pdf

16:05 Hunting for statistical anisotropy in tensor modes with B-mode observations

Speaker: Takashi Hiramatsu (Rikkyo U.)

20190305_TakashiHiramatsu.pdf

16:25 Statistical anisotropy in CMB spectral distortions

Speaker: Atsushi Ota (DAMTP)

20190305_AstuhisaOta.pdf

16:45 → 17:10 coffee break

17:10 → 17:50 Afternoon session 2 (contd.)

17:10 Effect of lensing magnification on type-Ia supernova cosmology

Speaker: Atsushi Nishizawa (Nagoya U.)

20190305_AtsushiNishizawa.pdf

17:30 Joint analysis of the thermal Sunyaev–Zeldovich effect and 2MASS galaxies

Speaker: Makiya Ryu (Kavli IPMU)

20190305_RyuMakiya.pdf

Wednesday 6 March

09:00 → 10:35 Morning session 1

09:00 (invited) The Effective Field Theory of Large-Scale Structure applied to BOSS data

Speaker: Leonardo Senatore (KIPAC)

20190306_LeonardoSenatore.pdf

09:35 Nonlinear reconstruction

Speaker: Yu Yu (Shanghai Jiao Tong University)

20190306YuYu.pdf

09:55 Optimal Reconstruction from Large Scale Structure Surveys

Speaker: Benjamin Horowitz (UC Berkeley)

20190306_BenHorowitz.pdf

10:15 Toward the analysis of the redshift-space bispectrum

Speaker: Naonori Sugiyama (Kavli IPMU)

20190306_NaonoriSugiyama.pdf

10:35 → 11:00 coffee break

11:00 → 12:20 Morning session 2

11:00 (invited) 21cm cosmology with current and future radio telescopes

Speaker: Saleem Zaroubi (U. Groningen/Open U.)

20190306_SaleemZaroubi.pdf

11:35 Probing Dark Energy With HIRAX

Speaker: Martin Bucher (Universite Paris 7/CNRS/U. KwaZulu-Nata)

12:00 Effect of astrophysics on the large-scale clustering of HI

Speaker: Rika Ando (Nagoya U.)

20190306_RikaAndo.pdf

12:20 → 19:00 free time (excursion, exploration, ...)

19:00 → 21:00 banquet

Thursday 7 March

09:00 → 10:15 Morning session 1

09:00 (invited) KiDS-VIKING-450: Cosmic shear tomography with optical+infrared data

Speaker: Hendrik Hildebrandt (Ruhr-University Bochum)

20190307_HendrikHildebrandt.pdf

09:35 Constraining the effect of AGN feedback with weak lensing, the tSZ effect, and deep learning

Speaker: Tilman Troester (Royal Observatory Edinburgh)

20190307_TilmanTröster.pdf

09:55 Diving deeper into intrinsic alignments of galaxies

Speaker: Christos Georgiou (Leiden Observatory)

20190307_ChristosGeorgiou.pdf

10:15 → 10:40 coffee break

10:40 → 12:00 Morning session 2

10:40 (invited) Cosmology Constraints from the Dark Energy Survey

Speaker: Krause Elisabeth (University of Arizona)

20190307_ElisabethKrause.pdf

11:15 (invited) Cosmology from cosmic shear power spectra with Subaru HSC data

Speaker: Chiaki Hikage (Kavli IPMU)

20190307_ChiakiHikage.pdf

11:40 Cosmological constraints from galaxy-galaxy lensing and clustering with the HSC and BOSS data

Speaker: Hironao Miyatake (Nagoya U.)

20190307_HironaoMiyatake.pdf

12:00 → 13:30 lunch break

13:30 → 14:30 Afternoon session 1

13:30 First results on HSC clustering

Speaker: Andrina Nicola (Princeton)

20190307_AndrinaNicola.pdf

13:50 Constraining the stochastic gravitational wave background using the cosmic shear B-mode

Speaker: Kazuyuki Akitsu (Kavli IPMU)

20190307_KazuyukiAkitsu.pdf

14:10 The Stellar-to-Halo Mass and Mass-Richness Relations of Massive Clusters

Speaker: Ying Zu (Shanghai Jiao Tong University)

20190307_YingZu.pdf

14:30 → 15:30 coffee break & poster session

15:30 → 16:45 Afternoon session 2

15:30 (invited) Primordial black holes as a probe of dark matter, dark energy and dark dimensions

Speaker: Bernard Carr (Queen Mary University of London)

20190307_BernardCarr.pdf

16:05 PBH tower in multi-phase inflation

Speaker: Yuichiro Tada (Nagoya U.)

20190307_YuichiroTada.pdf

16:25 Primordial Black Holes from R2 gravity

Speaker: Yingli Zhang (Tokyo University of Science)

20190307_YingliZhang.pdf

16:45 → 17:10 coffee break

17:10 → 17:50 Afternoon session 2 (contd)

17:10 Current and future constraints on gravitational wave non-Gaussianities

Speaker: Maresuke Shiraishi (NIT, Kagawa College)

20190307_MaresukeShiraishi.pdf

17:30 Earth-mass black hole? Constraints from OGLE

Speaker: Masahiro Takada (Kavli IPMU)

20190307_MasahrioTakada.pdf

Friday 8 March

09:00 → 10:10 Morning session 1

Convener: Takada Masahiro

09:00 (invited) Dark energy and modified gravity theories: current status and prospects with the Euclid satellite

Speaker: Valeria Pettorino (CEA Paris-Saclay)

20190308_ValeriaPettorino.pdf

09:35 (invited) Cosmology with WFIRST – Synergies with ground based surveys

Speaker: Tim Eifler (University of Arizona)

20190308_TimEifler.pdf

10:10 → 10:30 coffee break

10:30 → 12:05 Morning session 2

10:30 (invited) Spatially covariant gravity and the extension of scalar-tensor theories

Speaker: Xian Gao (Sun Yat-sen University)

20190308_XianGAO.pdf

11:05 Constant-roll inflation in scalar-tensor theory

Speaker: Hayato Motohashi (YITP)

20190308_HayatoMotohashi.pdf

11:25 Extended Cuscuton

Speaker: Aya Iyonaga (Rikkyo U.)

20190308_AyaIyonaga.pdf

11:45 Experimental Search for New Gravity-like Interactions using Slow Neutrons

Speaker: Yoshio Kamiya (U. Tokyo)

20190308_YoshioKamiya.pdf

12:05 → 13:30 lunch break

13:30 → 14:50 Afternoon session 1

13:30 (invited) Dark energy and gravitational waves

Speaker: Kazuya Koyama (University of Portsmouth)

20190308_KazuyaKoyama.pdf

14:05 Emergent Dark Universe and the Swampland Criteria

Speaker: Yun-Long Zhang (YITP)

20190308_YunLongZhang.pdf

14:25 Non-sphericity of ultra light axion dark matter halos in the Galactic dwarf satellites

Speaker: Kohei Hayashi (ICRR, U. Tokyo)

20190308_KoheiHayashi.pdf

14:45 closing remark